最近由于项目需求，需要对实体框架内表之间的关系进行处理，主要功能要求是通过一表名，返回其在实体框架内的所有关系表、主外键及每个字段的属性。先简单描述我解决这个问题从开始到最后的分析实现过程。EF框架实际是由XML模型建立的。如图一所示：

图1 EF文件

将EF框架EDM文件（TestModel.edmx文件）使用xml编辑器打开，可以看到其XML结构，其结构主要如下所示：

EDM是实体数据关系映射的XML文件。EDM主要有三部分构成 CSDL，SSDL，MSL。

  1. CSDL表面的是实体数据模型结构，
  2. SSDL表示对应的数据存储的架构，
  3. CSDL实体与SSDL数据结构的关系通过MSL映射实现。

EDM是通过ADO.NET 实体数据模型生成的。简单的了解了EF框架的本质之后，首先选择了XML的处理方式（开始不了解元数据，之后会有描述），因为这是EF框架的根源，从根源入手，肯定会解决问题。在实现第一次方案之前，有必要对数据库设计进行简要的说明，在数据库设计的时候需要对字段，表设计时相关属性要尽量完善，包括说明、字段长度、是否为空等，在这有一个问题就是我们直接在数据库中写字段、表说明是无法生成EF框架内相应说明的，所有我们需要使用EFTSQLDocumentation.Generator.exe工具，具体使用方法，此处不再赘述。需要在EDM中显示字段，表的中文说明的，使用此工具即可，我们主要是为了在MVC的view生成时，可以直接生成中文标签，才需要此功能。

通过以上描述，我们基本上知道了，我们就是要通过关系映射XML文件完成我们的最初目标，最初我们使用了Xpath，XQuery技术对XML文件进行处理，基本达到了最初的要求，但是这种方式，处理起来太繁琐，后来又尝试了Linq to Entity的方式对xml进行处理，这种方式其实也是换汤不换药。使用直接操作xml的读取方式的确很直接，很容易。但是随着测试完成，数据库不断扩容，眼前的XML文件日渐庞大，想对每个节点进行操作，简直苦不堪言！思来想去，如果有一套直接操作EDM元数据的API就好了，元数据就是用来定义数据的数据，之前尽量避免操作元数据，但是对于EF框架确实是一个很好的选择。废话一大堆，也不知道表述清楚没！有了此想法，就开始各种博客园，之后终于发现了正道，qouoww写了一篇探索EDM（Entity Framework）的EDM元数据对我启发很深，果断苦海无涯，回头是岸。

下面附上TestModel.edmx文件，及使用读取XML的xmlhelper操作类：如果要验证程序，可以自己建立一个.edmx文件，然后使用xmlhelper类进行处理查看效果。下一次将讲述使用操作元数据的方式处理EF。

TestModel.edmx文件：

  1.    1:  <?xml version="1.0" encoding="utf-8"?>
  1.    2:  <edmx:Edmx Version="2.0" xmlns:edmx="http://schemas.microsoft.com/ado/2008/10/edmx">
  1.    3:    <!-- EF Runtime content -->
  1.    4:    <edmx:Runtime>
  1.    5:      <!-- SSDL content -->
  1.    6:      <edmx:StorageModels>
  1.    7:      <Schema Namespace="testModel.Store" Alias="Self" Provider="System.Data.SqlClient" ProviderManifestToken="2008" xmlns:store="http://schemas.microsoft.com/ado/2007/12/edm/EntityStoreSchemaGenerator" xmlns="http://schemas.microsoft.com/ado/2009/02/edm/ssdl">
  1.    8:          <EntityContainer Name="testModelStoreContainer">
  1.    9:            <EntitySet Name="SB_QXD" EntityType="testModel.Store.SB_QXD" store:Type="Tables" Schema="dbo" />
  1.   10:            <EntitySet Name="SB_QXD_BPBJ" EntityType="testModel.Store.SB_QXD_BPBJ" store:Type="Tables" Schema="dbo" />
  1.   11:            <EntitySet Name="SB_QXD_SBXX" EntityType="testModel.Store.SB_QXD_SBXX" store:Type="Tables" Schema="dbo" />
  1.   12:            <EntitySet Name="SB_QXD_WXXM" EntityType="testModel.Store.SB_QXD_WXXM" store:Type="Tables" Schema="dbo" />
  1.   13:            <EntitySet Name="SB_SBGH" EntityType="testModel.Store.SB_SBGH" store:Type="Tables" Schema="dbo" />
  1.   14:            <EntitySet Name="SB_SBGH_SBXX" EntityType="testModel.Store.SB_SBGH_SBXX" store:Type="Tables" Schema="dbo" />
  1.   15:            <EntitySet Name="SysDepartment" EntityType="testModel.Store.SysDepartment" store:Type="Tables" Schema="dbo" />
  1.   16:            <EntitySet Name="SysPerson" EntityType="testModel.Store.SysPerson" store:Type="Tables" Schema="dbo" />
  1.   17:            <AssociationSet Name="FK_SB_QXD_B_REFERENCE_SB_QXD" Association="testModel.Store.FK_SB_QXD_B_REFERENCE_SB_QXD">
  1.   18:              <End Role="SB_QXD" EntitySet="SB_QXD" />
  1.   19:              <End Role="SB_QXD_BPBJ" EntitySet="SB_QXD_BPBJ" />
  1.   20:            </AssociationSet>
  1.   21:            <AssociationSet Name="FK_SB_QXD_REFERENCE_SYSDEPAR" Association="testModel.Store.FK_SB_QXD_REFERENCE_SYSDEPAR">
  1.   22:              <End Role="SysDepartment" EntitySet="SysDepartment" />
  1.   23:              <End Role="SB_QXD" EntitySet="SB_QXD" />
  1.   24:            </AssociationSet>
  1.   25:            <AssociationSet Name="FK_SB_QXD_REFERENCE_SYSPERSO" Association="testModel.Store.FK_SB_QXD_REFERENCE_SYSPERSO">
  1.   26:              <End Role="SysPerson" EntitySet="SysPerson" />
  1.   27:              <End Role="SB_QXD" EntitySet="SB_QXD" />
  1.   28:            </AssociationSet>
  1.   29:            <AssociationSet Name="FK_SB_QXD_S_REFERENCE_SB_QXD" Association="testModel.Store.FK_SB_QXD_S_REFERENCE_SB_QXD">
  1.   30:              <End Role="SB_QXD" EntitySet="SB_QXD" />
  1.   31:              <End Role="SB_QXD_SBXX" EntitySet="SB_QXD_SBXX" />
  1.   32:            </AssociationSet>
  1.   33:            <AssociationSet Name="FK_SB_QXD_W_REFERENCE_SB_QXD" Association="testModel.Store.FK_SB_QXD_W_REFERENCE_SB_QXD">
  1.   34:              <End Role="SB_QXD" EntitySet="SB_QXD" />
  1.   35:              <End Role="SB_QXD_WXXM" EntitySet="SB_QXD_WXXM" />
  1.   36:            </AssociationSet>
  1.   37:            <AssociationSet Name="FK_SB_QXD_W_REFERENCE_SYSPERSO" Association="testModel.Store.FK_SB_QXD_W_REFERENCE_SYSPERSO">
  1.   38:              <End Role="SysPerson" EntitySet="SysPerson" />
  1.   39:              <End Role="SB_QXD_WXXM" EntitySet="SB_QXD_WXXM" />
  1.   40:            </AssociationSet>
  1.   41:            <AssociationSet Name="FK_SB_SBGH__REFERENCE_SB_SBGH" Association="testModel.Store.FK_SB_SBGH__REFERENCE_SB_SBGH">
  1.   42:              <End Role="SB_SBGH" EntitySet="SB_SBGH" />
  1.   43:              <End Role="SB_SBGH_SBXX" EntitySet="SB_SBGH_SBXX" />
  1.   44:            </AssociationSet>
  1.   45:            <AssociationSet Name="FK_SB_SBGH_REFERENCE_SYSDEPAR" Association="testModel.Store.FK_SB_SBGH_REFERENCE_SYSDEPAR">
  1.   46:              <End Role="SysDepartment" EntitySet="SysDepartment" />
  1.   47:              <End Role="SB_SBGH" EntitySet="SB_SBGH" />
  1.   48:            </AssociationSet>
  1.   49:            <AssociationSet Name="FK_SB_SBGH_REFERENCE_SYSPERSO" Association="testModel.Store.FK_SB_SBGH_REFERENCE_SYSPERSO">
  1.   50:              <End Role="SysPerson" EntitySet="SysPerson" />
  1.   51:              <End Role="SB_SBGH" EntitySet="SB_SBGH" />
  1.   52:            </AssociationSet>
  1.   53:            <AssociationSet Name="FK_SYSDEPAR_部门与部门_SYSDEPAR" Association="testModel.Store.FK_SYSDEPAR_部门与部门_SYSDEPAR">
  1.   54:              <End Role="SysDepartment" EntitySet="SysDepartment" />
  1.   55:              <End Role="SysDepartment1" EntitySet="SysDepartment" />
  1.   56:            </AssociationSet>
  1.   57:            <AssociationSet Name="FK_SYSPERSO_部门与人员_SYSDEPAR" Association="testModel.Store.FK_SYSPERSO_部门与人员_SYSDEPAR">
  1.   58:              <End Role="SysDepartment" EntitySet="SysDepartment" />
  1.   59:              <End Role="SysPerson" EntitySet="SysPerson" />
  1.   60:            </AssociationSet>
  1.   61:          </EntityContainer>
  1.   62:          <EntityType Name="SB_QXD">
  1.   63:            <Key>
  1.   64:              <PropertyRef Name="ID" />
  1.   65:            </Key>
  1.   66:            <Property Name="ID" Type="nvarchar" Nullable="false" MaxLength="36" />
  1.   67:            <Property Name="QXD_RWRQ" Type="datetime" />
  1.   68:            <Property Name="QXD_ZDRQ" Type="datetime" />
  1.   69:            <Property Name="QXD_DJBM" Type="nvarchar" MaxLength="50" />
  1.   70:            <Property Name="QXD_WXFS" Type="nvarchar" MaxLength="50" />
  1.   71:            <Property Name="BM_ID_QXBM" Type="nvarchar" MaxLength="36" />
  1.   72:            <Property Name="RY_ID_QXR" Type="nvarchar" MaxLength="36" />
  1.   73:            <Property Name="QXD_DJLY" Type="nvarchar" MaxLength="50" />
  1.   74:            <Property Name="QXD_BZ" Type="nvarchar" MaxLength="200" />
  1.   75:            <Property Name="LYDJ_ID" Type="nvarchar" MaxLength="36" />
  1.   76:          </EntityType>
  1.   77:          <EntityType Name="SB_QXD_BPBJ">
  1.   78:            <Key>
  1.   79:              <PropertyRef Name="ID" />
  1.   80:            </Key>
  1.   81:            <Property Name="ID" Type="nvarchar" Nullable="false" MaxLength="36" />
  1.   82:            <Property Name="WLKP_ID" Type="nvarchar" MaxLength="36" />
  1.   83:            <Property Name="WLKP_GGXH" Type="nvarchar" MaxLength="100" />
  1.   84:            <Property Name="BPBJ_YL" Type="real" />
  1.   85:            <Property Name="WLKP_JLDW" Type="nvarchar" MaxLength="50" />
  1.   86:            <Property Name="BPBJ_BZ" Type="nvarchar" MaxLength="200" />
  1.   87:            <Property Name="QXD_ID" Type="nvarchar" MaxLength="36" />
  1.   88:          </EntityType>
  1.   89:          <EntityType Name="SB_QXD_SBXX">
  1.   90:            <Key>
  1.   91:              <PropertyRef Name="ID" />
  1.   92:            </Key>
  1.   93:            <Property Name="ID" Type="nvarchar" Nullable="false" MaxLength="36" />
  1.   94:            <Property Name="SBKP_BM" Type="nvarchar" MaxLength="36" />
  1.   95:            <Property Name="SBKP_MC" Type="nvarchar" MaxLength="50" />
  1.   96:            <Property Name="SBKP_GGXH" Type="nvarchar" MaxLength="100" />
  1.   97:            <Property Name="SBXX_WXGS" Type="real" />
  1.   98:            <Property Name="SBXX_TJGS" Type="real" />
  1.   99:            <Property Name="SBXX_SQKSRQ" Type="datetime" />
  1.  100:            <Property Name="SBXX_SQJSRQ" Type="datetime" />
  1.  101:            <Property Name="SBXX_JHKSRQ" Type="datetime" />
  1.  102:            <Property Name="SBXX_JHJSRQ" Type="datetime" />
  1.  103:            <Property Name="SBXX_SJKSRQ" Type="datetime" />
  1.  104:            <Property Name="SBXX_SJJSRQ" Type="datetime" />
  1.  105:            <Property Name="SBXX_WXNR" Type="nvarchar" MaxLength="1000" />
  1.  106:            <Property Name="SBXX_JTQX" Type="nvarchar" MaxLength="1000" />
  1.  107:            <Property Name="SBXX_QXYY" Type="nvarchar" MaxLength="1000" />
  1.  108:            <Property Name="SBXX_BZ" Type="nvarchar" MaxLength="200" />
  1.  109:            <Property Name="QXD_DI" Type="nvarchar" MaxLength="36" />
  1.  110:          </EntityType>
  1.  111:          <EntityType Name="SB_QXD_WXXM">
  1.  112:            <Key>
  1.  113:              <PropertyRef Name="ID" />
  1.  114:            </Key>
  1.  115:            <Property Name="ID" Type="nvarchar" Nullable="false" MaxLength="36" />
  1.  116:            <Property Name="WXXM_ID" Type="nvarchar" MaxLength="36" />
  1.  117:            <Property Name="WXXM_MC" Type="nvarchar" MaxLength="50" />
  1.  118:            <Property Name="WXXM_YQ" Type="nvarchar" MaxLength="1500" />
  1.  119:            <Property Name="WXXM_SM" Type="nvarchar" MaxLength="1500" />
  1.  120:            <Property Name="WXXM_MBLX" Type="nvarchar" MaxLength="100" />
  1.  121:            <Property Name="WXXM_MBZ" Type="nvarchar" MaxLength="100" />
  1.  122:            <Property Name="WXXM_MBSX" Type="nvarchar" MaxLength="100" />
  1.  123:            <Property Name="WXXM_MBXX" Type="nvarchar" MaxLength="100" />
  1.  124:            <Property Name="RY_ID" Type="nvarchar" MaxLength="36" />
  1.  125:            <Property Name="WXXM_BZ" Type="nvarchar" MaxLength="200" />
  1.  126:            <Property Name="QXD_ID" Type="nvarchar" MaxLength="36" />
  1.  127:          </EntityType>
  1.  128:          <EntityType Name="SB_SBGH">
  1.  129:            <Key>
  1.  130:              <PropertyRef Name="ID" />
  1.  131:            </Key>
  1.  132:            <Property Name="ID" Type="nvarchar" Nullable="false" MaxLength="36" />
  1.  133:            <Property Name="SBGH_YWRQ" Type="datetime" />
  1.  134:            <Property Name="SBGH_DJRQ" Type="datetime" />
  1.  135:            <Property Name="SBGH_DJBH" Type="nvarchar" MaxLength="50" />
  1.  136:            <Property Name="SBGH_ZLBZ" Type="nvarchar" MaxLength="36" />
  1.  137:            <Property Name="WLDW_ID_ZLDW" Type="nvarchar" MaxLength="50" />
  1.  138:            <Property Name="BM_ID_JB" Type="nvarchar" MaxLength="36" />
  1.  139:            <Property Name="RY_ID_JB" Type="nvarchar" MaxLength="36" />
  1.  140:            <Property Name="SBZL_YJ" Type="real" />
  1.  141:            <Property Name="SBZL_DJLY" Type="nvarchar" MaxLength="50" />
  1.  142:            <Property Name="SBZL_BZ" Type="nvarchar" MaxLength="200" />
  1.  143:            <Property Name="LYDJ_ID" Type="nvarchar" MaxLength="36" />
  1.  144:          </EntityType>
  1.  145:          <EntityType Name="SB_SBGH_SBXX">
  1.  146:            <Key>
  1.  147:              <PropertyRef Name="ID" />
  1.  148:            </Key>
  1.  149:            <Property Name="ID" Type="nvarchar" Nullable="false" MaxLength="36" />
  1.  150:            <Property Name="SBKP_ID" Type="nvarchar" MaxLength="36" />
  1.  151:            <Property Name="SBKP_MC" Type="nvarchar" MaxLength="50" />
  1.  152:            <Property Name="SBKP_GGXH" Type="nvarchar" MaxLength="100" />
  1.  153:            <Property Name="SBXX_KSRQ" Type="datetime" />
  1.  154:            <Property Name="SBXX_JSRQ" Type="datetime" />
  1.  155:            <Property Name="SBXX_SL" Type="real" />
  1.  156:            <Property Name="SBXX_DJDW" Type="nvarchar" MaxLength="50" />
  1.  157:            <Property Name="SBXX_DJ" Type="real" />
  1.  158:            <Property Name="SBXX_SFSH" Type="bit" />
  1.  159:            <Property Name="SBXX_JE" Type="real" />
  1.  160:            <Property Name="SBXX_YJ" Type="real" />
  1.  161:            <Property Name="SBXX_FCJH" Type="real" />
  1.  162:            <Property Name="SBXX_BZ" Type="nvarchar" MaxLength="200" />
  1.  163:            <Property Name="SBZL_ID" Type="nvarchar" MaxLength="36" />
  1.  164:          </EntityType>
  1.  165:          <EntityType Name="SysDepartment">
  1.  166:            <Key>
  1.  167:              <PropertyRef Name="Id" />
  1.  168:            </Key>
  1.  169:            <Property Name="Id" Type="nvarchar" Nullable="false" MaxLength="36" />
  1.  170:            <Property Name="Name" Type="nvarchar" Nullable="false" MaxLength="200" />
  1.  171:            <Property Name="ParentId" Type="nvarchar" MaxLength="36" />
  1.  172:            <Property Name="Address" Type="nvarchar" MaxLength="200" />
  1.  173:            <Property Name="Sort" Type="int" />
  1.  174:            <Property Name="Remark" Type="nvarchar" />
  1.  175:            <Property Name="CreateTime" Type="datetime" />
  1.  176:            <Property Name="CreatePerson" Type="nvarchar" MaxLength="200" />
  1.  177:            <Property Name="UpdateTime" Type="datetime" />
  1.  178:            <Property Name="UpdatePerson" Type="nvarchar" MaxLength="200" />
  1.  179:          </EntityType>
  1.  180:          <EntityType Name="SysPerson">
  1.  181:            <Key>
  1.  182:              <PropertyRef Name="Id" />
  1.  183:            </Key>
  1.  184:            <Property Name="Id" Type="nvarchar" Nullable="false" MaxLength="36" />
  1.  185:            <Property Name="Name" Type="nvarchar" Nullable="false" MaxLength="200" />
  1.  186:            <Property Name="MyName" Type="nvarchar" MaxLength="200" />
  1.  187:            <Property Name="Password" Type="nvarchar" Nullable="false" MaxLength="200" />
  1.  188:            <Property Name="SurePassword" Type="nvarchar" MaxLength="200" />
  1.  189:            <Property Name="Sex" Type="nvarchar" MaxLength="200" />
  1.  190:            <Property Name="SysDepartmentId" Type="nvarchar" MaxLength="36" />
  1.  191:            <Property Name="Position" Type="nvarchar" MaxLength="200" />
  1.  192:            <Property Name="MobilePhoneNumber" Type="nvarchar" MaxLength="200" />
  1.  193:            <Property Name="PhoneNumber" Type="nvarchar" MaxLength="200" />
  1.  194:            <Property Name="Province" Type="nvarchar" MaxLength="200" />
  1.  195:            <Property Name="City" Type="nvarchar" MaxLength="200" />
  1.  196:            <Property Name="Village" Type="nvarchar" MaxLength="200" />
  1.  197:            <Property Name="Address" Type="nvarchar" MaxLength="200" />
  1.  198:            <Property Name="EmailAddress" Type="nvarchar" MaxLength="200" />
  1.  199:            <Property Name="Remark" Type="decimal" />
  1.  200:            <Property Name="State" Type="nvarchar" MaxLength="200" />
  1.  201:            <Property Name="CreateTime" Type="datetime" />
  1.  202:            <Property Name="CreatePerson" Type="nvarchar" MaxLength="200" />
  1.  203:            <Property Name="UpdateTime" Type="datetime" />
  1.  204:            <Property Name="UpdatePerson" Type="nvarchar" MaxLength="200" />
  1.  205:            <Property Name="Version" Type="timestamp" StoreGeneratedPattern="Computed" />
  1.  206:          </EntityType>
  1.  207:          <Association Name="FK_SB_QXD_B_REFERENCE_SB_QXD">
  1.  208:            <End Role="SB_QXD" Type="testModel.Store.SB_QXD" Multiplicity="0..1" />
  1.  209:            <End Role="SB_QXD_BPBJ" Type="testModel.Store.SB_QXD_BPBJ" Multiplicity="*" />
  1.  210:            <ReferentialConstraint>
  1.  211:              <Principal Role="SB_QXD">
  1.  212:                <PropertyRef Name="ID" />
  1.  213:              </Principal>
  1.  214:              <Dependent Role="SB_QXD_BPBJ">
  1.  215:                <PropertyRef Name="QXD_ID" />
  1.  216:              </Dependent>
  1.  217:            </ReferentialConstraint>
  1.  218:          </Association>
  1.  219:          <Association Name="FK_SB_QXD_REFERENCE_SYSDEPAR">
  1.  220:            <End Role="SysDepartment" Type="testModel.Store.SysDepartment" Multiplicity="0..1" />
  1.  221:            <End Role="SB_QXD" Type="testModel.Store.SB_QXD" Multiplicity="*" />
  1.  222:            <ReferentialConstraint>
  1.  223:              <Principal Role="SysDepartment">
  1.  224:                <PropertyRef Name="Id" />
  1.  225:              </Principal>
  1.  226:              <Dependent Role="SB_QXD">
  1.  227:                <PropertyRef Name="BM_ID_QXBM" />
  1.  228:              </Dependent>
  1.  229:            </ReferentialConstraint>
  1.  230:          </Association>
  1.  231:          <Association Name="FK_SB_QXD_REFERENCE_SYSPERSO">
  1.  232:            <End Role="SysPerson" Type="testModel.Store.SysPerson" Multiplicity="0..1" />
  1.  233:            <End Role="SB_QXD" Type="testModel.Store.SB_QXD" Multiplicity="*" />
  1.  234:            <ReferentialConstraint>
  1.  235:              <Principal Role="SysPerson">
  1.  236:                <PropertyRef Name="Id" />
  1.  237:              </Principal>
  1.  238:              <Dependent Role="SB_QXD">
  1.  239:                <PropertyRef Name="RY_ID_QXR" />
  1.  240:              </Dependent>
  1.  241:            </ReferentialConstraint>
  1.  242:          </Association>
  1.  243:          <Association Name="FK_SB_QXD_S_REFERENCE_SB_QXD">
  1.  244:            <End Role="SB_QXD" Type="testModel.Store.SB_QXD" Multiplicity="0..1" />
  1.  245:            <End Role="SB_QXD_SBXX" Type="testModel.Store.SB_QXD_SBXX" Multiplicity="*" />
  1.  246:            <ReferentialConstraint>
  1.  247:              <Principal Role="SB_QXD">
  1.  248:                <PropertyRef Name="ID" />
  1.  249:              </Principal>
  1.  250:              <Dependent Role="SB_QXD_SBXX">
  1.  251:                <PropertyRef Name="QXD_DI" />
  1.  252:              </Dependent>
  1.  253:            </ReferentialConstraint>
  1.  254:          </Association>
  1.  255:          <Association Name="FK_SB_QXD_W_REFERENCE_SB_QXD">
  1.  256:            <End Role="SB_QXD" Type="testModel.Store.SB_QXD" Multiplicity="0..1" />
  1.  257:            <End Role="SB_QXD_WXXM" Type="testModel.Store.SB_QXD_WXXM" Multiplicity="*" />
  1.  258:            <ReferentialConstraint>
  1.  259:              <Principal Role="SB_QXD">
  1.  260:                <PropertyRef Name="ID" />
  1.  261:              </Principal>
  1.  262:              <Dependent Role="SB_QXD_WXXM">
  1.  263:                <PropertyRef Name="QXD_ID" />
  1.  264:              </Dependent>
  1.  265:            </ReferentialConstraint>
  1.  266:          </Association>
  1.  267:          <Association Name="FK_SB_QXD_W_REFERENCE_SYSPERSO">
  1.  268:            <End Role="SysPerson" Type="testModel.Store.SysPerson" Multiplicity="0..1" />
  1.  269:            <End Role="SB_QXD_WXXM" Type="testModel.Store.SB_QXD_WXXM" Multiplicity="*" />
  1.  270:            <ReferentialConstraint>
  1.  271:              <Principal Role="SysPerson">
  1.  272:                <PropertyRef Name="Id" />
  1.  273:              </Principal>
  1.  274:              <Dependent Role="SB_QXD_WXXM">
  1.  275:                <PropertyRef Name="RY_ID" />
  1.  276:              </Dependent>
  1.  277:            </ReferentialConstraint>
  1.  278:          </Association>
  1.  279:          <Association Name="FK_SB_SBGH__REFERENCE_SB_SBGH">
  1.  280:            <End Role="SB_SBGH" Type="testModel.Store.SB_SBGH" Multiplicity="0..1" />
  1.  281:            <End Role="SB_SBGH_SBXX" Type="testModel.Store.SB_SBGH_SBXX" Multiplicity="*" />
  1.  282:            <ReferentialConstraint>
  1.  283:              <Principal Role="SB_SBGH">
  1.  284:                <PropertyRef Name="ID" />
  1.  285:              </Principal>
  1.  286:              <Dependent Role="SB_SBGH_SBXX">
  1.  287:                <PropertyRef Name="SBZL_ID" />
  1.  288:              </Dependent>
  1.  289:            </ReferentialConstraint>
  1.  290:          </Association>
  1.  291:          <Association Name="FK_SB_SBGH_REFERENCE_SYSDEPAR">
  1.  292:            <End Role="SysDepartment" Type="testModel.Store.SysDepartment" Multiplicity="0..1" />
  1.  293:            <End Role="SB_SBGH" Type="testModel.Store.SB_SBGH" Multiplicity="*" />
  1.  294:            <ReferentialConstraint>
  1.  295:              <Principal Role="SysDepartment">
  1.  296:                <PropertyRef Name="Id" />
  1.  297:              </Principal>
  1.  298:              <Dependent Role="SB_SBGH">
  1.  299:                <PropertyRef Name="BM_ID_JB" />
  1.  300:              </Dependent>
  1.  301:            </ReferentialConstraint>
  1.  302:          </Association>
  1.  303:          <Association Name="FK_SB_SBGH_REFERENCE_SYSPERSO">
  1.  304:            <End Role="SysPerson" Type="testModel.Store.SysPerson" Multiplicity="0..1" />
  1.  305:            <End Role="SB_SBGH" Type="testModel.Store.SB_SBGH" Multiplicity="*" />
  1.  306:            <ReferentialConstraint>
  1.  307:              <Principal Role="SysPerson">
  1.  308:                <PropertyRef Name="Id" />
  1.  309:              </Principal>
  1.  310:              <Dependent Role="SB_SBGH">
  1.  311:                <PropertyRef Name="RY_ID_JB" />
  1.  312:              </Dependent>
  1.  313:            </ReferentialConstraint>
  1.  314:          </Association>
  1.  315:          <Association Name="FK_SYSDEPAR_部门与部门_SYSDEPAR">
  1.  316:            <End Role="SysDepartment" Type="testModel.Store.SysDepartment" Multiplicity="0..1" />
  1.  317:            <End Role="SysDepartment1" Type="testModel.Store.SysDepartment" Multiplicity="*" />
  1.  318:            <ReferentialConstraint>
  1.  319:              <Principal Role="SysDepartment">
  1.  320:                <PropertyRef Name="Id" />
  1.  321:              </Principal>
  1.  322:              <Dependent Role="SysDepartment1">
  1.  323:                <PropertyRef Name="ParentId" />
  1.  324:              </Dependent>
  1.  325:            </ReferentialConstraint>
  1.  326:          </Association>
  1.  327:          <Association Name="FK_SYSPERSO_部门与人员_SYSDEPAR">
  1.  328:            <End Role="SysDepartment" Type="testModel.Store.SysDepartment" Multiplicity="0..1" />
  1.  329:            <End Role="SysPerson" Type="testModel.Store.SysPerson" Multiplicity="*" />
  1.  330:            <ReferentialConstraint>
  1.  331:              <Principal Role="SysDepartment">
  1.  332:                <PropertyRef Name="Id" />
  1.  333:              </Principal>
  1.  334:              <Dependent Role="SysPerson">
  1.  335:                <PropertyRef Name="SysDepartmentId" />
  1.  336:              </Dependent>
  1.  337:            </ReferentialConstraint>
  1.  338:          </Association>
  1.  339:        </Schema></edmx:StorageModels>
  1.  340:      <!-- CSDL content -->
  1.  341:      <edmx:ConceptualModels>
  1.  342:        <Schema Namespace="testModel" Alias="Self" xmlns:annotation="http://schemas.microsoft.com/ado/2009/02/edm/annotation" xmlns="http://schemas.microsoft.com/ado/2008/09/edm">
  1.  343:          <EntityContainer Name="testEntities" annotation:LazyLoadingEnabled="true">
  1.  344:            <EntitySet Name="SB_QXD" EntityType="testModel.SB_QXD" />
  1.  345:            <EntitySet Name="SB_QXD_BPBJ" EntityType="testModel.SB_QXD_BPBJ" />
  1.  346:            <EntitySet Name="SB_QXD_SBXX" EntityType="testModel.SB_QXD_SBXX" />
  1.  347:            <EntitySet Name="SB_QXD_WXXM" EntityType="testModel.SB_QXD_WXXM" />
  1.  348:            <AssociationSet Name="FK_SB_QXD_B_REFERENCE_SB_QXD" Association="testModel.FK_SB_QXD_B_REFERENCE_SB_QXD">
  1.  349:              <End Role="SB_QXD" EntitySet="SB_QXD" />
  1.  350:              <End Role="SB_QXD_BPBJ" EntitySet="SB_QXD_BPBJ" />
  1.  351:            </AssociationSet>
  1.  352:            <AssociationSet Name="FK_SB_QXD_S_REFERENCE_SB_QXD" Association="testModel.FK_SB_QXD_S_REFERENCE_SB_QXD">
  1.  353:              <End Role="SB_QXD" EntitySet="SB_QXD" />
  1.  354:              <End Role="SB_QXD_SBXX" EntitySet="SB_QXD_SBXX" />
  1.  355:            </AssociationSet>
  1.  356:            <AssociationSet Name="FK_SB_QXD_W_REFERENCE_SB_QXD" Association="testModel.FK_SB_QXD_W_REFERENCE_SB_QXD">
  1.  357:              <End Role="SB_QXD" EntitySet="SB_QXD" />
  1.  358:              <End Role="SB_QXD_WXXM" EntitySet="SB_QXD_WXXM" />
  1.  359:            </AssociationSet>
  1.  360:            <EntitySet Name="SB_SBGH" EntityType="testModel.SB_SBGH" />
  1.  361:            <EntitySet Name="SB_SBGH_SBXX" EntityType="testModel.SB_SBGH_SBXX" />
  1.  362:            <AssociationSet Name="FK_SB_SBGH__REFERENCE_SB_SBGH" Association="testModel.FK_SB_SBGH__REFERENCE_SB_SBGH">
  1.  363:              <End Role="SB_SBGH" EntitySet="SB_SBGH" />
  1.  364:              <End Role="SB_SBGH_SBXX" EntitySet="SB_SBGH_SBXX" />
  1.  365:            </AssociationSet>
  1.  366:            <EntitySet Name="SysDepartment" EntityType="testModel.SysDepartment" />
  1.  367:            <AssociationSet Name="FK_SB_QXD_REFERENCE_SYSDEPAR" Association="testModel.FK_SB_QXD_REFERENCE_SYSDEPAR">
  1.  368:              <End Role="SysDepartment" EntitySet="SysDepartment" />
  1.  369:              <End Role="SB_QXD" EntitySet="SB_QXD" />
  1.  370:            </AssociationSet>
  1.  371:            <AssociationSet Name="FK_SB_SBGH_REFERENCE_SYSDEPAR" Association="testModel.FK_SB_SBGH_REFERENCE_SYSDEPAR">
  1.  372:              <End Role="SysDepartment" EntitySet="SysDepartment" />
  1.  373:              <End Role="SB_SBGH" EntitySet="SB_SBGH" />
  1.  374:            </AssociationSet>
  1.  375:            <AssociationSet Name="FK_SYSDEPAR_部门与部门_SYSDEPAR" Association="testModel.FK_SYSDEPAR_部门与部门_SYSDEPAR">
  1.  376:              <End Role="SysDepartment" EntitySet="SysDepartment" />
  1.  377:              <End Role="SysDepartment1" EntitySet="SysDepartment" />
  1.  378:            </AssociationSet>
  1.  379:            <EntitySet Name="SysPerson" EntityType="testModel.SysPerson" />
  1.  380:            <AssociationSet Name="FK_SB_QXD_REFERENCE_SYSPERSO" Association="testModel.FK_SB_QXD_REFERENCE_SYSPERSO">
  1.  381:              <End Role="SysPerson" EntitySet="SysPerson" />
  1.  382:              <End Role="SB_QXD" EntitySet="SB_QXD" />
  1.  383:            </AssociationSet>
  1.  384:            <AssociationSet Name="FK_SB_QXD_W_REFERENCE_SYSPERSO" Association="testModel.FK_SB_QXD_W_REFERENCE_SYSPERSO">
  1.  385:              <End Role="SysPerson" EntitySet="SysPerson" />
  1.  386:              <End Role="SB_QXD_WXXM" EntitySet="SB_QXD_WXXM" />
  1.  387:            </AssociationSet>
  1.  388:            <AssociationSet Name="FK_SB_SBGH_REFERENCE_SYSPERSO" Association="testModel.FK_SB_SBGH_REFERENCE_SYSPERSO">
  1.  389:              <End Role="SysPerson" EntitySet="SysPerson" />
  1.  390:              <End Role="SB_SBGH" EntitySet="SB_SBGH" />
  1.  391:            </AssociationSet>
  1.  392:            <AssociationSet Name="FK_SYSPERSO_部门与人员_SYSDEPAR" Association="testModel.FK_SYSPERSO_部门与人员_SYSDEPAR">
  1.  393:              <End Role="SysDepartment" EntitySet="SysDepartment" />
  1.  394:              <End Role="SysPerson" EntitySet="SysPerson" />
  1.  395:            </AssociationSet>
  1.  396:          </EntityContainer>
  1.  397:          <EntityType Name="SB_QXD">
  1.  398:            <Key>
  1.  399:              <PropertyRef Name="ID" />
  1.  400:            </Key>
  1.  401:            <Property Name="ID" Type="String" Nullable="false" MaxLength="36" Unicode="true" FixedLength="false" >
  1.  402:              <Documentation>
  1.  403:                <Summary>主键</Summary>
  1.  404:              </Documentation>
  1.  405:            </Property>
  1.  406:            <Property Name="QXD_RWRQ" Type="DateTime" />
  1.  407:            <Property Name="QXD_ZDRQ" Type="DateTime" />
  1.  408:            <Property Name="QXD_DJBM" Type="String" MaxLength="50" Unicode="true" FixedLength="false" />
  1.  409:            <Property Name="QXD_WXFS" Type="String" MaxLength="50" Unicode="true" FixedLength="false" />
  1.  410:            <Property Name="BM_ID_QXBM" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
  1.  411:            <Property Name="RY_ID_QXR" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
  1.  412:            <Property Name="QXD_DJLY" Type="String" MaxLength="50" Unicode="true" FixedLength="false" />
  1.  413:            <Property Name="QXD_BZ" Type="String" MaxLength="200" Unicode="true" FixedLength="false" />
  1.  414:            <Property Name="LYDJ_ID" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
  1.  415:            <NavigationProperty Name="SB_QXD_BPBJ" Relationship="testModel.FK_SB_QXD_B_REFERENCE_SB_QXD" FromRole="SB_QXD" ToRole="SB_QXD_BPBJ" />
  1.  416:            <NavigationProperty Name="SB_QXD_SBXX" Relationship="testModel.FK_SB_QXD_S_REFERENCE_SB_QXD" FromRole="SB_QXD" ToRole="SB_QXD_SBXX" />
  1.  417:            <NavigationProperty Name="SB_QXD_WXXM" Relationship="testModel.FK_SB_QXD_W_REFERENCE_SB_QXD" FromRole="SB_QXD" ToRole="SB_QXD_WXXM" />
  1.  418:            <NavigationProperty Name="SysDepartment" Relationship="testModel.FK_SB_QXD_REFERENCE_SYSDEPAR" FromRole="SB_QXD" ToRole="SysDepartment" />
  1.  419:            <NavigationProperty Name="SysPerson" Relationship="testModel.FK_SB_QXD_REFERENCE_SYSPERSO" FromRole="SB_QXD" ToRole="SysPerson" />
  1.  420:          </EntityType>
  1.  421:          <EntityType Name="SB_QXD_BPBJ">
  1.  422:            <Key>
  1.  423:              <PropertyRef Name="ID" />
  1.  424:            </Key>
  1.  425:            <Property Name="ID" Type="String" Nullable="false" MaxLength="36" Unicode="true" FixedLength="false" />
  1.  426:            <Property Name="WLKP_ID" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
  1.  427:            <Property Name="WLKP_GGXH" Type="String" MaxLength="100" Unicode="true" FixedLength="false" />
  1.  428:            <Property Name="BPBJ_YL" Type="Single" />
  1.  429:            <Property Name="WLKP_JLDW" Type="String" MaxLength="50" Unicode="true" FixedLength="false" />
  1.  430:            <Property Name="BPBJ_BZ" Type="String" MaxLength="200" Unicode="true" FixedLength="false" />
  1.  431:            <Property Name="QXD_ID" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
  1.  432:            <NavigationProperty Name="SB_QXD" Relationship="testModel.FK_SB_QXD_B_REFERENCE_SB_QXD" FromRole="SB_QXD_BPBJ" ToRole="SB_QXD" />
  1.  433:          </EntityType>
  1.  434:          <EntityType Name="SB_QXD_SBXX">
  1.  435:            <Key>
  1.  436:              <PropertyRef Name="ID" />
  1.  437:            </Key>
  1.  438:            <Property Name="ID" Type="String" Nullable="false" MaxLength="36" Unicode="true" FixedLength="false" />
  1.  439:            <Property Name="SBKP_BM" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
  1.  440:            <Property Name="SBKP_MC" Type="String" MaxLength="50" Unicode="true" FixedLength="false" />
  1.  441:            <Property Name="SBKP_GGXH" Type="String" MaxLength="100" Unicode="true" FixedLength="false" />
  1.  442:            <Property Name="SBXX_WXGS" Type="Single" />
  1.  443:            <Property Name="SBXX_TJGS" Type="Single" />
  1.  444:            <Property Name="SBXX_SQKSRQ" Type="DateTime" />
  1.  445:            <Property Name="SBXX_SQJSRQ" Type="DateTime" />
  1.  446:            <Property Name="SBXX_JHKSRQ" Type="DateTime" />
  1.  447:            <Property Name="SBXX_JHJSRQ" Type="DateTime" />
  1.  448:            <Property Name="SBXX_SJKSRQ" Type="DateTime" />
  1.  449:            <Property Name="SBXX_SJJSRQ" Type="DateTime" />
  1.  450:            <Property Name="SBXX_WXNR" Type="String" MaxLength="1000" Unicode="true" FixedLength="false" />
  1.  451:            <Property Name="SBXX_JTQX" Type="String" MaxLength="1000" Unicode="true" FixedLength="false" />
  1.  452:            <Property Name="SBXX_QXYY" Type="String" MaxLength="1000" Unicode="true" FixedLength="false" />
  1.  453:            <Property Name="SBXX_BZ" Type="String" MaxLength="200" Unicode="true" FixedLength="false" />
  1.  454:            <Property Name="QXD_DI" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
  1.  455:            <NavigationProperty Name="SB_QXD" Relationship="testModel.FK_SB_QXD_S_REFERENCE_SB_QXD" FromRole="SB_QXD_SBXX" ToRole="SB_QXD" />
  1.  456:          </EntityType>
  1.  457:          <EntityType Name="SB_QXD_WXXM">
  1.  458:            <Key>
  1.  459:              <PropertyRef Name="ID" />
  1.  460:            </Key>
  1.  461:            <Property Name="ID" Type="String" Nullable="false" MaxLength="36" Unicode="true" FixedLength="false" />
  1.  462:            <Property Name="WXXM_ID" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
  1.  463:            <Property Name="WXXM_MC" Type="String" MaxLength="50" Unicode="true" FixedLength="false" />
  1.  464:            <Property Name="WXXM_YQ" Type="String" MaxLength="1500" Unicode="true" FixedLength="false" />
  1.  465:            <Property Name="WXXM_SM" Type="String" MaxLength="1500" Unicode="true" FixedLength="false" />
  1.  466:            <Property Name="WXXM_MBLX" Type="String" MaxLength="100" Unicode="true" FixedLength="false" />
  1.  467:            <Property Name="WXXM_MBZ" Type="String" MaxLength="100" Unicode="true" FixedLength="false" />
  1.  468:            <Property Name="WXXM_MBSX" Type="String" MaxLength="100" Unicode="true" FixedLength="false" />
  1.  469:            <Property Name="WXXM_MBXX" Type="String" MaxLength="100" Unicode="true" FixedLength="false" />
  1.  470:            <Property Name="RY_ID" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
  1.  471:            <Property Name="WXXM_BZ" Type="String" MaxLength="200" Unicode="true" FixedLength="false" />
  1.  472:            <Property Name="QXD_ID" Type="String" MaxLength="36" Unicode="true" FixedLength="false" />
  1.  473:            <NavigationProperty Name="SB_QXD" Relationship="testModel.FK_SB_QXD_W_REFERENCE_SB_QXD" FromRole="SB_QXD_WXXM" ToRole="SB_QXD" />
  1.  474:            <NavigationProperty Name="SysPerson" Relationship="testModel.FK_SB_QXD_W_REFERENCE_SYSPERSO" FromRole="SB_QXD_WXXM" ToRole="SysPerson" />
  1.  475:          </EntityType>
  1.  476:          <Association Name="FK_SB_QXD_B_REFERENCE_SB_QXD">
  1.  477:            <End Role="SB_QXD" Type="testModel.SB_QXD" Multiplicity="0..1" />
  1.  478:            <End Role="SB_QXD_BPBJ" Type="testModel.SB_QXD_BPBJ" Multiplicity="*" />
  1.  479:            <ReferentialConstraint>
  1.  480:              <Principal Role="SB_QXD">
  1.  481:                <PropertyRef Name="ID" />
  1.  482:              </Principal>
  1.  483:              <Dependent Role="SB_QXD_BPBJ">
  1.  484:                <PropertyRef Name="QXD_ID" />
  1.  485:              </Dependent>
  1.  486:            </ReferentialConstraint>
  1.  487:          </Association>
  1.  488:          <Association Name="FK_SB_QXD_S_REFERENCE_SB_QXD">
  1.  489:            <End Role="SB_QXD" Type="testModel.SB_QXD" Multiplicity="0..1" />
  1.  490:            <End Role="SB_QXD_SBXX" Type="testModel.SB_QXD_SBXX" Multiplicity="*" />
  1.  491:            <ReferentialConstraint>
  1.  492:              <Principal Role="SB_QXD">
  1.  493:                <PropertyRef Name="ID" />
  1.  494:              </Principal>
  1.  495:              <Dependent Role="SB_QXD_SBXX">
  1.  496:                <PropertyRef Name="QXD_DI" />
  1.  497:              </Dependent>
  1.  498:            </ReferentialConstraint>
  1.  499:          </Association>
  1.  500:          <Association Name="FK_SB_QXD_W_REFERENCE_SB_QXD">
  1.  501:            <End Role="SB_QXD" Type="testModel.SB_QXD" Multiplicity="0..1" />
  1.  502:            <End Role="SB_QXD_WXXM" Type="testModel.SB_QXD_WXXM" Multiplicity="*" />
  1.  503:            <ReferentialConstraint>
  1.  504:              <Principal Role="SB_QXD">
  1.  505:                <PropertyRef Name="ID" />
  1.  506:              </Principal>
  1.  507:              <Dependent Role="SB_QXD_WXXM">
  1.  508:                <PropertyRef Name="QXD_ID" />
  1.  509:              </Dependent>
  1.  510:            </ReferentialConstraint>
  1.  511:          </Association>
  1.  512:          <EntityType Name="SB_SBGH">
  1.  513:            <Key>
  1.  514:              <PropertyRef Name="ID" />
  1.  515:            </Key>
  1.  516:            <Property Type="String" Name="ID" Nullable="false" MaxLength="36" FixedLength="false" Unicode="true" />
  1.  517:            <Property Type="DateTime" Name="SBGH_YWRQ" />
  1.  518:            <Property Type="DateTime" Name="SBGH_DJRQ" />
  1.  519:            <Property Type="String" Name="SBGH_DJBH" MaxLength="50" FixedLength="false" Unicode="true" />
  1.  520:            <Property Type="String" Name="SBGH_ZLBZ" MaxLength="36" FixedLength="false" Unicode="true" />
  1.  521:            <Property Type="String" Name="WLDW_ID_ZLDW" MaxLength="50" FixedLength="false" Unicode="true" />
  1.  522:            <Property Type="String" Name="BM_ID_JB" MaxLength="36" FixedLength="false" Unicode="true" />
  1.  523:            <Property Type="String" Name="RY_ID_JB" MaxLength="36" FixedLength="false" Unicode="true" />
  1.  524:            <Property Type="Single" Name="SBZL_YJ" />
  1.  525:            <Property Type="String" Name="SBZL_DJLY" MaxLength="50" FixedLength="false" Unicode="true" />
  1.  526:            <Property Type="String" Name="SBZL_BZ" MaxLength="200" FixedLength="false" Unicode="true" />
  1.  527:            <Property Type="String" Name="LYDJ_ID" MaxLength="36" FixedLength="false" Unicode="true" />
  1.  528:            <NavigationProperty Name="SB_SBGH_SBXX" Relationship="testModel.FK_SB_SBGH__REFERENCE_SB_SBGH" FromRole="SB_SBGH" ToRole="SB_SBGH_SBXX" />
  1.  529:            <NavigationProperty Name="SysDepartment" Relationship="testModel.FK_SB_SBGH_REFERENCE_SYSDEPAR" FromRole="SB_SBGH" ToRole="SysDepartment" />
  1.  530:            <NavigationProperty Name="SysPerson" Relationship="testModel.FK_SB_SBGH_REFERENCE_SYSPERSO" FromRole="SB_SBGH" ToRole="SysPerson" />
  1.  531:          </EntityType>
  1.  532:          <EntityType Name="SB_SBGH_SBXX">
  1.  533:            <Key>
  1.  534:              <PropertyRef Name="ID" />
  1.  535:            </Key>
  1.  536:            <Property Type="String" Name="ID" Nullable="false" MaxLength="36" FixedLength="false" Unicode="true" />
  1.  537:            <Property Type="String" Name="SBKP_ID" MaxLe
jx 标签: XmlHelper
  1.    1:  using System;
  1.    2:  using System.Collections.Generic;
  1.    3:  using System.Linq;
  1.    4:  using System.Web;
  1.    5:   
  1.    6:  using System.Xml;
  1.    7:  using System.Data.Metadata.Edm;
  1.    8:   
  1.    9:  namespace MvcApplication3.Models.Helper
  1.   10:  {
  1.   11:      public class XMLHelper
  1.   12:      {
  1.   13:          /// <summary> 
  1.   14:          /// 获取主表从表外键关系 
  1.   15:          /// </summary> 
  1.   16:          /// <param name="FK"></param> 
  1.   17:          /// <returns></returns> 
  1.   18:          public SortedList<string, string> GetTableRelation(string FK, HttpServerUtilityBase Server)
  1.   19:          {
  1.   20:              XmlDocument doc = new XmlDocument();
  1.   21:              string strr = Server.MapPath("~\\Models\\TestModel.edmx");
  1.   22:              doc.Load(strr);
  1.   23:              XmlNodeList nodes = doc.GetElementsByTagName("Association");
  1.   24:              SortedList<string, string> Relationlist = new SortedList<string, string>();
  1.   25:   
  1.   26:              foreach (XmlNode nodevalue in nodes)
  1.   27:              {
  1.   28:                  if (nodevalue.Attributes["Name"].Value == FK && Relationlist.Count.Equals(0))
  1.   29:                  {
  1.   30:   
  1.   31:                      string str = nodevalue.FirstChild.Attributes["Multiplicity"].Value;
  1.   32:                      string str1 = nodevalue.FirstChild.NextSibling.Attributes["Multiplicity"].Value;
  1.   33:                      string str2 = nodevalue.LastChild.FirstChild.Attributes["Role"].Value;
  1.   34:                      string str3 = nodevalue.LastChild.FirstChild.FirstChild.Attributes["Name"].Value;
  1.   35:                      string str4 = nodevalue.LastChild.LastChild.Attributes["Role"].Value;
  1.   36:                      string str5 = nodevalue.LastChild.LastChild.FirstChild.Attributes["Name"].Value;
  1.   37:                      Relationlist.Add("MainRelation", str);
  1.   38:                      Relationlist.Add("SubRelation", str1);
  1.   39:                      Relationlist.Add("MainTable", str2);
  1.   40:                      Relationlist.Add("MainPropertyName", str3);
  1.   41:                      Relationlist.Add("SubTable", str4);
  1.   42:                      Relationlist.Add("SubPropertyName", str5);
  1.   43:                  }
  1.   44:              }
  1.   45:              return Relationlist;
  1.   46:          }
  1.   47:          /// <summary> 
  1.   48:          /// 获取数据表的主键 
  1.   49:          /// </summary> 
  1.   50:          /// <returns></returns> 
  1.   51:          public SortedList<string, string> GetTableKEY(HttpServerUtilityBase Server)
  1.   52:          {
  1.   53:              XmlDocument doc = new XmlDocument();
  1.   54:              string strr = Server.MapPath("~\\Models\\TestModel.edmx");
  1.   55:              doc.Load(strr);
  1.   56:              XmlNodeList nodesAll = doc.GetElementsByTagName("EntityType");
  1.   57:              SortedList<string, string> keylist = new SortedList<string, string>();
  1.   58:              int count = nodesAll.Count;
  1.   59:              foreach (XmlNode nodevalue in nodesAll)
  1.   60:              {
  1.   61:                  count--;
  1.   62:                  if (count >= nodesAll.Count / 2)
  1.   63:                  {
  1.   64:                      keylist.Add(nodevalue.Attributes["Name"].Value, nodevalue.FirstChild.FirstChild.Attributes["Name"].Value);
  1.   65:                  }
  1.   66:              }
  1.   67:              return keylist;
  1.   68:          }
  1.   69:   
  1.   70:   
  1.   71:          /// <summary>
  1.   72:          /// 通过表名返回与之相关的表及关系
  1.   73:          /// </summary>
  1.   74:          /// <param name="Server">服务器</param>
  1.   75:          /// <param name="TableName">表名</param>
  1.   76:          /// <param name="IsShowRelation">是否查询关系</param>
  1.   77:          /// <returns>与主表相关所有表的关系</returns>
  1.   78:          public static List<TableRelation> GetTable(HttpServerUtilityBase Server, string TableName, bool IsShowRelation)
  1.   79:          {
  1.   80:              string xmlpath = Server.MapPath("~\\Models\\TestModel.edmx");
  1.   81:              XmlDocument xmlnoe = new XmlDocument();
  1.   82:              xmlnoe.Load(xmlpath);
  1.   83:              XmlNamespaceManager xmlname = new XmlNamespaceManager(xmlnoe.NameTable);
  1.   84:              xmlname.AddNamespace("edmx", "http://schemas.microsoft.com/ado/2008/10/edmx");
  1.   85:              xmlname.AddNamespace("annotation", "http://schemas.microsoft.com/ado/2009/02/edm/annotation");
  1.   86:              xmlname.AddNamespace("public", "http://schemas.microsoft.com/ado/2008/09/edm");//添加Schema节点命名空间
  1.   87:              XmlNodeList xmlNodesET = xmlnoe.SelectNodes("//edmx:ConceptualModels/public:Schema/public:EntityType", xmlname);
  1.   88:              XmlNodeList xmlNodesAT = xmlnoe.SelectNodes("//edmx:ConceptualModels/public:Schema/public:Association", xmlname);
  1.   89:   
  1.   90:              SortedList<string, SortedList<string, string>> list1 = new SortedList<string, SortedList<string, string>>();
  1.   91:   
  1.   92:              if (IsShowRelation)
  1.   93:              {
  1.   94:                  //list1.Add(TableName, new SortedList<string, string>());
  1.   95:                  foreach (XmlNode nodeAT in xmlNodesAT)
  1.   96:                  {
  1.   97:                      if (nodeAT.FirstChild.Attributes["Role"].Value.Equals(TableName))
  1.   98:                      {
  1.   99:                          SortedList<string, string> list = new SortedList<string, string>();
  1.  100:                          list.Add("Name", nodeAT.Attributes["Name"].Value);//外键关系名称
  1.  101:                          list.Add("MainRole", nodeAT.FirstChild.Attributes["Role"].Value);//主表
  1.  102:                          list.Add("MainMultiplicity", nodeAT.FirstChild.Attributes["Multiplicity"].Value);//映射关系 n..n
  1.  103:                          list.Add("MainKey", nodeAT.ChildNodes[2].FirstChild.FirstChild.Attributes["Name"].Value);//主键
  1.  104:                          list.Add("SubRole", nodeAT.FirstChild.NextSibling.Attributes["Role"].Value);//子表
  1.  105:                          list.Add("SubMultiplicity", nodeAT.FirstChild.NextSibling.Attributes["Multiplicity"].Value);//映射关系
  1.  106:                          list.Add("SubKey", nodeAT.ChildNodes[2].LastChild.FirstChild.Attributes["Name"].Value);//外键
  1.  107:                          list1.Add(nodeAT.FirstChild.NextSibling.Attributes["Role"].Value, list);
  1.  108:                      }
  1.  109:                      else if (nodeAT.FirstChild.NextSibling.Attributes["Role"].Value.Equals(TableName))
  1.  110:                      {
  1.  111:                          SortedList<string, string> list = new SortedList<string, string>();
  1.  112:                          list.Add("Name", nodeAT.Attributes["Name"].Value);//外键关系名称
  1.  113:                          list.Add("MainRole", nodeAT.FirstChild.Attributes["Role"].Value);//主表
  1.  114:                          list.Add("MainMultiplicity", nodeAT.FirstChild.Attributes["Multiplicity"].Value);//映射关系 n..n
  1.  115:                          list.Add("MainKey", nodeAT.ChildNodes[2].FirstChild.FirstChild.Attributes["Name"].Value);//主键
  1.  116:                          list.Add("SubRole", nodeAT.FirstChild.NextSibling.Attributes["Role"].Value);//子表
  1.  117:                          list.Add("SubMultiplicity", nodeAT.FirstChild.NextSibling.Attributes["Multiplicity"].Value);//映射关系
  1.  118:                          list.Add("SubKey", nodeAT.ChildNodes[2].LastChild.FirstChild.Attributes["Name"].Value);//外键
  1.  119:                          list1.Add(nodeAT.FirstChild.Attributes["Role"].Value, list);
  1.  120:   
  1.  121:                          SortedList<string, string> listsub = new SortedList<string, string>();
  1.  122:                          listsub.Add("Name", nodeAT.Attributes["Name"].Value);//外键关系名称
  1.  123:                          listsub.Add("MainRole", nodeAT.FirstChild.Attributes["Role"].Value);//主表
  1.  124:                          listsub.Add("MainMultiplicity", nodeAT.FirstChild.Attributes["Multiplicity"].Value);//映射关系 n..n
  1.  125:                          listsub.Add("MainKey", nodeAT.ChildNodes[2].FirstChild.FirstChild.Attributes["Name"].Value);//主键
  1.  126:                          listsub.Add("SubRole", nodeAT.FirstChild.NextSibling.Attributes["Role"].Value);//子表
  1.  127:                          listsub.Add("SubMultiplicity", nodeAT.FirstChild.NextSibling.Attributes["Multiplicity"].Value);//映射关系
  1.  128:                          listsub.Add("SubKey", nodeAT.ChildNodes[2].LastChild.FirstChild.Attributes["Name"].Value);//外键
  1.  129:                          list1.Add(nodeAT.FirstChild.NextSibling.Attributes["Role"].Value, listsub);
  1.  130:                      }
  1.  131:                  }
  1.  132:   
  1.  133:                  if (!list1.ContainsKey(TableName))
  1.  134:                  {
  1.  135:                      list1.Add(TableName, new SortedList<string, string>());
  1.  136:                  }
  1.  137:              }
  1.  138:              else
  1.  139:              {
  1.  140:                  list1.Add(TableName, new SortedList<string, string>());
  1.  141:              }
  1.  142:              List<TableRelation> listTableRelation = new List<TableRelation>();
  1.  143:   
  1.  144:              foreach (var a in list1)//遍历所有该表的关系
  1.  145:              {
  1.  146:                  foreach (XmlNode nodeET in xmlNodesET)//遍历所有EntityType节点的表
  1.  147:                  {
  1.  148:                      TableRelation tr = new TableRelation();
  1.  149:                      if (nodeET.Attributes["Name"].Value.Equals(a.Key))//EntityType节点名是否与关系结构中的主键名相同
  1.  150:                      {
  1.  151:                          XmlNode xmlNodesET2 = xmlnoe.SelectSingleNode("//edmx:ConceptualModels/public:Schema/public:EntityType[@Name='" + a.Key + "']/public:Documentation", xmlname);
  1.  152:                          XmlNodeList xmlNodesET3 = xmlnoe.SelectNodes("//edmx:ConceptualModels/public:Schema/public:EntityType[@Name='" + a.Key + "']/public:Property", xmlname);
  1.  153:                          List<Column> listColumn = new List<Column>();
  1.  154:                          foreach (XmlNode nodeET3 in xmlNodesET3)
  1.  155:                          {
  1.  156:                              Column column = new Column();
  1.  157:                              column.columnname = nodeET3.Attributes["Name"].Value;
  1.  158:                              column.type = nodeET3.Attributes["Type"].Value;
  1.  159:                              column.title = nodeET3.FirstChild != null ? nodeET3.FirstChild.FirstChild.InnerText : nodeET3.Attributes["Name"].Value;
  1.  160:                              column.nullable = nodeET3.Attributes["Nullable"] != null ? nodeET3.Attributes["Nullable"].Value : null;
  1.  161:                              column.maxlength = nodeET3.Attributes["MaxLength"] != null ? nodeET3.Attributes["MaxLength"].Value : null;
  1.  162:                              if (a.Value.Count > 0 && nodeET3.Attributes["Name"].Value.Equals(a.Value["SubKey"])
  1.  163:                                  || a.Value.Count > 0 && nodeET3.Attributes["Name"].Value.Equals(a.Value["MainKey"]))
  1.  164:                              {
  1.  165:                                  column.mainrole = a.Value["MainRole"];
  1.  166:                                  column.mainkey = a.Value["MainKey"];
  1.  167:                                  column.relationname = a.Value["Name"];
  1.  168:                                  if (a.Value["MainMultiplicity"].Equals("*"))
  1.  169:                                  {
  1.  170:                                      column.mainmultiplicity = "ManyToOne";
  1.  171:                                  }
  1.  172:                                  else if (a.Value["MainMultiplicity"].Equals("0..1"))
  1.  173:                                  {
  1.  174:                                      column.mainmultiplicity = "OneToMany";
  1.  175:                                  }
  1.  176:   
  1.  177:                                  column.subrole = a.Value["SubRole"];
  1.  178:                                  column.subkey = a.Value["SubKey"];
  1.  179:                                  if (a.Value["SubMultiplicity"].Equals("*"))
  1.  180:                                  {
  1.  181:                                      column.submultiplicity = "ManyToOne";
  1.  182:                                  }
  1.  183:                                  else if (a.Value["SubMultiplicity"].Equals("0..1"))
  1.  184:                                  {
  1.  185:                                      column.submultiplicity = "OneToMany";
  1.  186:                                  }
  1.  187:                              }
  1.  188:                              listColumn.Add(column);
  1.  189:                          }
  1.  190:                          tr.tablename = a.Key;
  1.  191:                          tr.tabletitle = xmlNodesET2 != null ? xmlNodesET2.InnerText : a.Key;
  1.  192:                          tr.columns = listColumn;
  1.  193:                          listTableRelation.Add(tr);
  1.  194:                      }
  1.  195:                  }
  1.  196:              }
  1.  197:              return listTableRelation;
  1.  198:          }
  1.  199:   
  1.  200:       
  1.  201:      }
  1.  202:  }

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  1. jx 标签: Column

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  1.    1:  using System;
  1.    2:  using System.Collections.Generic;
  1.    3:  using System.Linq;
  1.    4:  using System.Text;
  1.    5:  using Newtonsoft.Json;
  1.    6:   
  1.    7:  namespace EF_XML_TableRelation
  1.    8:  {
  1.    9:      /// <summary>
  1.   10:      /// 数据表列信息
  1.   11:      /// </summary>
  1.   12:      public class Column
  1.   13:      {
  1.   14:          /// <summary>
  1.   15:          /// 列名
  1.   16:          /// </summary>
  1.   17:          [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
  1.   18:          public string columnname { get; set; }
  1.   19:          /// <summary>
  1.   20:          /// 列备注
  1.   21:          /// </summary>
  1.   22:          [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
  1.   23:          public string title { get; set; }
  1.   24:          /// <summary>
  1.   25:          /// 列类型
  1.   26:          /// </summary>
  1.   27:          [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
  1.   28:          public string type { get; set; }
  1.   29:          /// <summary>
  1.   30:          /// 是否为空
  1.   31:          /// </summary>
  1.   32:          [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
  1.   33:          public string nullable { get; set; }
  1.   34:          /// <summary>
  1.   35:          /// 最大长度
  1.   36:          /// </summary>
  1.   37:          [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
  1.   38:          public string maxlength { get; set; }
  1.   39:          /// <summary>
  1.   40:          /// 主表名称
  1.   41:          /// </summary>
  1.   42:          [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
  1.   43:          public string mainrole { get; set; }
  1.   44:          /// <summary>
  1.   45:          /// 主表主键
  1.   46:          /// </summary>
  1.   47:          [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
  1.   48:          public string mainkey { get; set; }
  1.   49:          /// <summary>
  1.   50:          /// 关系名称
  1.   51:          /// </summary>
  1.   52:          [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
  1.   53:          public string relationname { get; set; }
  1.   54:          /// <summary>
  1.   55:          /// 主表关系
  1.   56:          /// </summary>
  1.   57:          [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
  1.   58:          public string mainmultiplicity { get; set; }
  1.   59:          /// <summary>
  1.   60:          /// 子表名称
  1.   61:          /// </summary>
  1.   62:          [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
  1.   63:          public string subrole { get; set; }
  1.   64:          /// <summary>
  1.   65:          /// 子表外键
  1.   66:          /// </summary>
  1.   67:          [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
  1.   68:          public string subkey { get; set; }
  1.   69:          /// <summary>
  1.   70:          /// 子表关系
  1.   71:          /// </summary>
  1.   72:          [JsonProperty(NullValueHandling = NullValueHandling.Ignore)]
  1.   73:          public string submultiplicity { get; set; }
  1.   74:          public Column()
  1.   75:          {
  1.   76:   
  1.   77:          }
  1.   78:   
  1.   79:          public Column(string _name, string _title, string _type,
  1.   80:             string _mainRole, string _mainKey, string _relationName,
  1.   81:             string _mainMultiplicity, string _subRole, string _subKey,
  1.   82:              string _subMultiplicity)
  1.   83:          {
  1.   84:              columnname = _name;
  1.   85:              title = _title;
  1.   86:              type = _type;
  1.   87:              mainrole = _mainRole;
  1.   88:              mainkey = _mainKey;
  1.   89:              relationname = _relationName;
  1.   90:              mainmultiplicity = _mainMultiplicity;
  1.   91:              subrole = _subRole;
  1.   92:              subkey = _subKey;
  1.   93:              submultiplicity = _subMultiplicity;
  1.   94:          }
  1.   95:      }
  1.   96:  }
jx 标签: TableRelation

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  1.    1:  using System;
  1.    2:  using System.Collections.Generic;
  1.    3:  using System.Linq;
  1.    4:  using System.Text;
  1.    5:   
  1.    6:  namespace EF_XML_TableRelation.XML
  1.    7:  {
  1.    8:      /// <summary>
  1.    9:      /// 数据表关系
  1.   10:      /// </summary>
  1.   11:      public class TableRelation
  1.   12:      {
  1.   13:          public string tablename { get; set; }
  1.   14:          public string tabletitle { get; set; }
  1.   15:          public List<Column> columns { get; set; }
  1.   16:          public TableRelation()
  1.   17:          {
  1.   18:   
  1.   19:          }
  1.   20:          public TableRelation(string _name, string _tabletitle, List<Column> _column)
  1.   21:          {
  1.   22:              tablename = _name;
  1.   23:              tabletitle = _tabletitle;
  1.   24:              columns = _column;
  1.   25:          }
  1.   26:      }
  1.   27:  }

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