初见，Devexpress

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1.连接数据库

 using System;
 using System.Collections.Generic;
 using System.Web;
 using System.Data.OleDb;

 namespace myBPB
 {
     public class myDB
     {
       OleDbConnection conn = null;
       public OleDbConnection getConn()
         {
             string sServer = "192.168.132.10";
             string sDatabase = "myBPB";
             string sUser = "sa";
             string sPassword = "";
             //Provider=SQLOLEDB; 指的是连接数据库所用的相关数据库驱动
             //Data Source; 指的是服务器地址或服务器名称
             //Persist Security Info; 指的是是否保存安全信息，其实可以简单的理解为"在数据库连接成功后是否保存密码信息"，True表示保存，False表示不保存
             //Initial Catalog; 指的是要连接的数据库名称
             //User ID; 登录数据库的名称
             //Password; 登录数据库的密码
             String sSQL = String.Format("Provider=SQLOLEDB;Data Source={0};" +"Persist Security Info=True;User ID={2};" +"Initial Catalog={1};Password={3};",sServer, sDatabase, sUser, sPassword);//数据库连接语句
             try
             {
                 conn = new OleDbConnection(sSQL);
                 conn.Open();
                 return conn;
             }
             catch (System.Exception ex)
             {
                 return null;
             }
         }
     }
 }

连接数据库

2.填充ASPxGridView

 public void BindGridView()
         {
             OleDbConnection conn = new myDB().getConn();
             string str = "select * from 区域";
             OleDbDataAdapter da = new OleDbDataAdapter(str, conn);
             DataSet ds = new DataSet();
             da.Fill(ds);
             this.ASPxGridView1.DataSource = ds.Tables[].DefaultView;
             this.ASPxGridView1.DataBind();
             conn.Close();
         }

填充ASPxGridView

3.布局

控件：ASPxSplitter（分离器）

作用：布局时多用于分割页面

属性：Orientation（方向）= Vertical（垂直）或 Herizontal（水平）

ASPxSplitter1.Panes[0].PaneStyle.Paddings.Padding = 0;         //第一个面板的内边距为0

ASPxSplitter1.Panes[1].PaneStyle.Paddings.Padding = 0;         //第二个面板的内边距为0

ASPxSplitter1.Panes[0].Size = 63;                                        //第一个面板的高度(大小)为63

ASPxSplitter1.Panes[1].ScrollBars = ScrollBars.Auto;              //自动出现滚动条

ASPxSplitter1.AllowResize = false;                                       //不允许调整ASPxSplitter1

ASPxSplitter1.FullscreenMode = true;                                   //全屏模式为true

---

控件：ASPxMenu1（菜单）

作用：制作菜单

属性：width（宽度）=100%

Items（菜单的选项）

ItemAutoWidth（菜单选项宽度自动调整）=True（真）或False（假）

AutoSeparators="RootOnly"（菜单选项之间用竖线隔开）

ClientInstanceName="ASPxMenu1"（控件的前端名称）

---

控件：表格

作用：排版

属性：Style—>表格—>table-layout=fixed（表格宽度为固定值）

---

控件：ASPxImage

作用：显示图标、图片

属性：ASPxImage1.ImageUrl = "~/Images/man.gif";

---

控件：ASPxGridView

作用：显示数据

属性：ASPxGridView1.Width = 2000;

ASPxGridView1.SettingsBehavior.AllowFocusedRow = true;//每行都可以选择

Columns（列）— Caption（显示名称）— FieldName（数据库连接字段）

AutoGenerateColumns="False"//数据源自动绑定为假

KeyFieldName="bh"//关键字为bh

ClientInstanceName="ASPxGridView1"（控件的前端名称）

前端运用：

1.在每行前面添加一个ASPxCheckBox

         <dx:ASPxGridView ID="ASPxGridView1" runat="server">
            <Columns>

              <dx:GridViewCommandColumn Caption="操作" ShowSelectCheckbox="true" VisibleIndex="" Width="20px">
              <HeaderTemplate>
              <dx:ASPxCheckBox ID="ASPxCheckBox1" runat="server" ToolTip="Select/Unselect all rows on the page"
              ClientSideEvents-CheckedChanged="function(s, e) { ASPxGridView1.SelectAllRowsOnPage(s.GetChecked()); }" />
              </HeaderTemplate>
              </dx:GridViewCommandColumn>

            </Columns>
         </dx:ASPxGridView>

自动添加ASPxCheck.xml

2.在第一列显示行号

         <dx:ASPxGridView ID="ASPxGridView1" runat="server">
            <Columns>

               <dx:GridViewDataTextColumn Caption="序号" FieldName="XH" UnboundType="Integer" VisibleIndex=""Width="36px">
               <Settings AutoFilterCondition="Contains" />
               <CellStyle HorizontalAlign="Center">
               </CellStyle>
               </dx:GridViewDataTextColumn>

            </Columns>
         </dx:ASPxGridView>

自动添加行号.xml

         protected void ASPxGridView1_CustomUnboundColumnData(object sender, DevExpress.Web.ASPxGridView.ASPxGridViewColumnDataEventArgs e)
         {
             if (e.Column.FieldName == "XH" && e.IsGetData)
                 e.Value = (e.ListSourceRowIndex + ).ToString();
         }

自动添加行号.后台

3.将Columns分组

             <dx:GridViewBandColumn Caption="使用于">
                     <Columns>
                               <dx:GridViewDataTextColumn Caption="部门" FieldName="部门"
                                    ShowInCustomizationForm="True" VisibleIndex="" Width="150px">
                                    <Settings AutoFilterCondition="Contains" />
                                </dx:GridViewDataTextColumn>
                                <dx:GridViewDataTextColumn Caption="何工序或何设备" FieldName="何工序或何设备"
                                    ShowInCustomizationForm="True" VisibleIndex="" Width="200px">
                                    <Settings AutoFilterCondition="Contains" />
                                </dx:GridViewDataTextColumn>
                     </Columns>
             </dx:GridViewBandColumn>

Columns.xml

4.ASPxComboBox配置数据源

 <asp:SqlDataSource ID="SqlDataSource1_BuMen" runat="server"
             ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
             ProviderName="<%$ ConnectionStrings:ConnectionString.ProviderName %>"
             SelectCommand="SELECT DISTINCT [部门名称], [部门编码] FROM [部门设置]"></asp:SqlDataSource>

数据源—部门.xml

 <dx:ASPxComboBox ID="Com_BuMen" runat="server"
                                     DataSourceID="SqlDataSource1_BuMen" ValueField="部门编码" DropDownStyle="DropDownList"
                                     ValueType="System.String" TextFormatString="{1}" EnableCallbackMode="true"
                                     IncrementalFilteringMode="Contains" TextField="部门编码"
                                     ClientInstanceName="Com_BuMen" >
                                     <Columns>
                                     <dx:ListBoxColumn FieldName="部门编码" Width="45px" />
                                     <dx:ListBoxColumn FieldName="部门名称" Width="100%" />
                                     </Columns>
                                 </dx:ASPxComboBox>

部门文本框.前台

5.增加

 public void Add()
 {
     String str_add= "insert into 区域(区域号,区域,备注) values('" + QuYuHao + "','" + QuYu + "','" + BeiZhu + "')";
     OleDbConnection conn = new myDB().getConn();
     OleDbCommand com = new OleDbCommand(str_add, conn);
     if(Convert.ToInt32(com.ExecuteNonQuery())>)
     {
       Page.ClientScript.RegisterClientScriptBlock(typeof(QuYuEdit), "CustomEdit", "alert('添加成功！！');", true);
     }
     else
     {
      Page.ClientScript.RegisterClientScriptBlock(typeof(QuYuEdit), "CustomEdit", "alert('添加失败！！');", true);
     }
      conn.Close();
 }

增加.后台

6.删除

 public void Del()
         {
             String str_Del = "delete from 区域 where bh=" + ;
             OleDbConnection conn = new myDB().getConn();
             OleDbCommand com = new OleDbCommand(str_Del, conn);
             int counts = com.ExecuteNonQuery();
             if (counts > )
             {
                 Page.ClientScript.RegisterClientScriptBlock(typeof(WuLiaoBianMa), "CustomEdit", "alert('删除成功！');", true);
             }
             else
             {
                 Page.ClientScript.RegisterClientScriptBlock(typeof(WuLiaoBianMa), "CustomEdit", "alert('删除失败！');", true);
             }
             conn.Close();
         }

删除.后台

7.修改

 public void Update()
         {
             String str_Update = "update 区域 set 区域号='" + QuYuHao + "',区域='" + QuYu + "',备注='" + BeiZhu + "' where bh=" + Convert.ToInt32(ASPxHiddenField1.Get("SBH1"));
             OleDbConnection conn = new myDB().getConn();
             OleDbCommand com = new OleDbCommand(str_Del, conn);
             int counts = com.ExecuteNonQuery();
             if (counts > )
             {
                 Page.ClientScript.RegisterClientScriptBlock(typeof(WuLiaoBianMa), "CustomEdit", "alert('修改成功！');", true);
             }
             else
             {
                 Page.ClientScript.RegisterClientScriptBlock(typeof(WuLiaoBianMa), "CustomEdit", "alert('修改失败！');", true);
             }
             conn.Close();
         }

修改.后台

8.查询

 public String Old_Name()
         {
             OleDbConnection conn = new myDB().getConn();
             string str = "select * from 物料编码 where bh='" + Convert.ToInt32(ASPxHiddenField1.Get("sBH")) + "'";
             OleDbDataAdapter da = new OleDbDataAdapter(str, conn);
             DataSet ds = new DataSet();
             da.Fill(ds);
             String m = ds.Tables[].Rows[]["物料编码"].ToString();
             return m;
         }

查询（DataAdapter、DataSet）.后台

 public void Lei_Xing()
         {
             OleDbConnection conn = new myDB().getConn();
             string str = "select * from 基础数据 where 目录='供应商类型'";
             OleDbCommand com = new OleDbCommand(str, conn);
             OleDbDataReader read = com.ExecuteReader();
             while (read.Read())
             {
                 Txt_LeiXing.Items.Add(read["内容"].ToString());
             }
         }

查询后台（DataReader）.后台

9.ASPxGridView中勾选ASPxCheckBox删除数据

 List<object> keyValues = this.ASPxGridView1.GetSelectedFieldValues("bh");  //需要在ASPxGridView1的源设置 KeyFieldName="bh"
 ASPxGridView1.Selection.UnselectAll();   //清空ASPxGridView中所有选择的语句。
 int count = keyValues.Count;
 if (str == "删除")
    {
      if (count <= )
        {
           Page.ClientScript.RegisterClientScriptBlock(typeof(WuLiaoBianMa), "CustomEdit", "alert('请选择要删除的数据！');", true);
           return;
         }
      foreach (object key in keyValues)
         {
           do_del(key.ToString()); //删除
          }
           keyValues.Clear();
           count = keyValues.Count;
           BindGridView();
     }

ASPxGridView中勾选ASPxCheckBox删除数据

10.ASPxGridView过滤

后台：ASPxGridView1.Settings.ShowFilterRow = true;

前台：<Settings AutoFilterCondition="Contains" />//ASPxGridView属性—>Columns—>要实现过滤的列—>Settings—>AutoFilterCondition="Contains"

11.ASPxGridViewExporter导出

                 if (Directory.Exists(Server.MapPath("tmp")) == false)
                 {
                     Directory.CreateDirectory(Server.MapPath("tmp"));
                 }
                 string path = Server.MapPath("~/tmp/");//获取完整路径
                 ASPxGridViewExporter1.FileName = "物料编码";
                 ASPxGridViewExporter1.PageHeader.Font.Size = ;
                 string message1 = @"物料编码";
                 ASPxGridViewExporter1.PageHeader.Center = message1;
                 this.ASPxGridViewExporter1.WriteXlsToResponse();

ASPxGridViewExporter导出.后台

12.ASPxHiddenField隐藏字段

设置前台名称：ClientInstanceName="hf1";
后台赋初值：ASPxHiddenField1.Add("SBH",0);
前台赋值：hf1.Set('sBH', ASPxGridView1.GetRowKey(ASPxGridView1.GetFocusedRowIndex())); //给隐藏字段赋值为ASPxGridView1当前被选中行的bh值
后台取值：ASPxHiddenField1.Get("sBH")；
前台取值：hf1.Get('sBH')

13.ASPxPopupControl自定义约会表单

设置前台名称：ClientInstanceName="ASPxPopupControl1"；
前台显示ASPxPopupControl自定义表单：ASPxPopupControl1.Show();
前台隐藏ASPxPopupControl自定义表单：ASPxPopupControl1.Hid();

14.ASPxUploadControl上传、导入实例（导入）

点击导入按钮，弹出下图的自定义约会表单，将选择的文件上传至固定的地址并导入ASPxGridView中

 .前台弹出表单：ASPxPopupControl1.Show();

 .上传文件到指定的地址：
   String ExcelFileName = "";
   protected voidASPxUploadControl1_FileUploadComplete(objectsender,DevExpress.Web.ASPxUploadControl.
   FileUploadCompleteEventArgs e)
    {
             if (Directory.Exists(Server.MapPath("tmp")) == false)
             {
                 Directory.CreateDirectory(Server.MapPath("tmp"));
             }
             if (e.IsValid)
             {
                 ASPxUploadControl1.PostedFile.SaveAs(Server.MapPath("~/tmp/")+ ASPxUploadControl1.PostedFile.FileName);
                 ExcelFileName = ASPxUploadControl1.PostedFile.FileName;
             }
    }

 .导入ASPxGridView：
   #region 从Table导出数据DaoRu()
   public void DaoRu(ASPxGridView ASPxGridView1,String ExcelFileName)
   {
     try    //步骤一：先将用户选择的EXCEL文件上传至服务器端。
     {
            if (Directory.Exists(Server.MapPath("tmp")) == false)
            {
               Directory.CreateDirectory(Server.MapPath("tmp"));
            }
            string path = Server.MapPath("~/tmp/") + ExcelFileName;//获取完整路径
            GetOneSheet("Sheet", path, ASPxGridView1);

     }
     catch
     {
        throw;
      }
   }

           //  步骤二：将上传的文件导入至DataSet
   public static void GetOneSheet(string sheetname, string Path, ASPxGridView ASPxGridView1)
   {
             try
             {
               string connString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Path + ";Extended Properties=Excel 8.0;";
               OleDbConnection con = new OleDbConnection(connString); //连接excel表
               con.Open();
               String strOutPutExcel = "select * from [" + sheetname + "$]";
               OleDbDataAdapter ad = new OleDbDataAdapter(strOutPutExcel, con);
               DataSet table = table = new DataSet();
               ad.Fill(table,"table1");  //填充dataset
               int count = table.Tables[].Rows.Count;
               OleDbConnection conn = new myDB().getConn();
               OleDbCommand com = null;
               for (int i = ; i < count; i++)
               {

                     String QuYuHao = table.Tables[].Rows[i][].ToString().Trim();
                     String LeiBeiHao = table.Tables[].Rows[i][].ToString().Trim();
                     String str_insert = "INSERT INTO [物料编码] ( [区域号], [类别号]) VALUES (?, ?)";

                     OleDbParameter op1 = new OleDbParameter();
                     OleDbParameter op2 = new OleDbParameter();

                     op1.OleDbType = OleDbType.VarChar;
                     op2.OleDbType = OleDbType.VarChar;
                     op1.Value = QuYuHao.ToString();
                     op2.Value = LeiBeiHao.ToString();
                     com = new OleDbCommand(str_insert,conn);
                     com.Parameters.Add(op1);
                     com.Parameters.Add(op2);
                     try
                     {
                         com.ExecuteNonQuery();
                     }
                     catch
                     {
                         //Debug.WriteLine();
                     }

                 }
                 con.Close();
             }
             catch
             {
                 throw;
             }
   }
         #endregion

 .确定按钮单击事件中调用DaoRu()：
 DaoRu(ASPxGridView1, ExcelFileName);
 BindGridView();  //重新填充ASPxGridView

代码实现

15.根据ASPxGridView值得变化，前端给控件赋值实例（修改）

 .ClientInstanceName="ASPxGridView1"   //要赋值的前端控件也需设置前端名称
 .判断是否选择了"修改"
 if (str == "修改")
 {
     Session.Add("Add_Or_Update", );
      Response.Redirect("~/WuLiaoBianMaEdit.aspx"); //转到下图的修改页面
 }

 ."修改"页面加载：
  if (!IsPostBack)
      {
            if (Convert.ToInt32(Session["Add_Or_Update"]) == )
                 {
                     ASPxImage1.ImageUrl = "~/Images/m5.gif";
                     ASPxRoundPanel1.HeaderText = "修改";
                     ASPxHiddenField1.Add("sBH2", );
                     ASPxHiddenField1.Add("sBH", );
                 }
 }

 .ASPxGridView单击事件：
   <ClientSideEvents FocusedRowChanged="function(s, e) { OnGridFocusedRowChanged(); }" />
   <ClientSideEvents FocusedRowChanged="function(s, e) { OnGridFocusedRowChanged(); }"></ClientSideEvents>
   <%--ASPxGridView的单击事件--%>

 .Javascript实现ASPxGridView单击事件：
   <script language="javascript" type="text/javascript">
     function OnGridFocusedRowChanged()
     {
         ASPxGridView1.GetRowValues(ASPxGridView1.GetFocusedRowIndex(), '区域号;类别号', OnGetRowValues); //前端访问控件
     }
     function OnGetRowValues(values)
     {
         hf1.Set('sBH', ASPxGridView1.GetRowKey(ASPxGridView1.GetFocusedRowIndex())); //给隐藏字段赋值
         if (hf1.Get('sBH2') == )
         {
             Com_QuYuHao.SetText(values[]);
             Com_LeiBieHao.SetText(values[]);
         }
     }
   </script>

代码实现

16.选择"区域号","类别号"后，点击"已用流水号"按钮，从数据库中读取数据加载到表单中，并弹出表单（防止刷屏问题）

 .ClientInstanceName="grid2"
 .写一个自定义函数，填充表单中的ASPxGridView：
    public void LiuShuiHao(String QuYuHao,String LeiBieHao)
         {
             String str_LiuShuiHao = "";
             if (QuYuHao != "" && LeiBieHao != "")
             {
                str_LiuShuiHao = "select * from 物料编码 where 区域号='" + QuYuHao + "' and 类别号='" + LeiBieHao + "'";
             }
             else if (QuYuHao != "")
             {
                 str_LiuShuiHao = "select * from 物料编码 where  区域号='" + QuYuHao + "'";
             }
             else if (LeiBieHao != "")
             {
                 str_LiuShuiHao = "select * from 物料编码 where  类别号='" + LeiBieHao + "'";
             }
             if(str_LiuShuiHao!="")
             {
             OleDbConnection conn = new myDB().getConn();
             OleDbDataAdapter da = new OleDbDataAdapter(str_LiuShuiHao, conn);
             DataSet ds = new DataSet();
             da.Fill(ds);
             this.ASPxGridView2.DataSource = ds.Tables[].DefaultView;
             this.ASPxGridView2.DataBind();
             conn.Close();
             }
         }

 .在页面的load中调用该方法：
     if (Com_QuYuHao.Text != "" || Com_LeiBieHao.Text != "")
       {
                 LiuShuiHao(Com_QuYuHao.Text, Com_LeiBieHao.Text);
       }

 .按钮的前端Click事件：
    ASPxPopupControl1.Show();
    grid2.Refresh();
    e.processOnServer = false;

 读取数据库防止—刷屏

读数据库—防止刷屏