T4自动生成数据库C#实体类学习（1）

第一个测试的Demo

 <#@ template language="C#" debug="True" hostspecific="True" #>
 <#@ output extension=".cs" #>
 <#@ assembly name="System.Data" #>

 <#@ assembly name="System.xml" #>
 <#@ assembly name="System.Data.OracleClient" #>
 <#@ import namespace="System.Collections.Generic" #>
 <#@ import namespace="System.Data.OracleClient" #>
 <#@ import namespace="System.Data" #>

 using System;
 using System.Xml;
 using System.Data;
 using System.Data.OracleClient;

 namespace MyProject.Entities
 {
     <#
         string connectionString = "Data Source=orcl;User ID=sde;PassWord=sde";
         OracleConnection conn = new OracleConnection(connectionString);
         conn.Open();
         string tableName= "T_USER";
         string selectQuery = "select * from @tableName";
         OracleCommand command = new OracleCommand(selectQuery,conn);
         System.Data.DataSet ds = new DataSet();
     #> 

         public class <#=  tableName#>
         {
             <#
                 ds.Tables.Clear();
                 OracleDataAdapter ad=new OracleDataAdapter(command);
                 command.CommandText = selectQuery.Replace("@tableName", tableName); 

                 ad.FillSchema(ds, SchemaType.Mapped, tableName);

                 foreach (DataColumn dc in ds.Tables[].Columns)
                 {
             #>

                 private <#= dc.DataType.Name  #> _<#= dc.ColumnName.Replace(dc.ColumnName[].ToString(), dc.ColumnName[].ToString().ToLower())      #>;

                 public <#= dc.DataType.Name #> <#= dc.ColumnName #>
                 {
                     get { return _<#= dc.ColumnName.Replace(dc.ColumnName[].ToString(), dc.ColumnName[].ToString().ToLower()) #>; }
                     set { _<#= dc.ColumnName.Replace(dc.ColumnName[].ToString(), dc.ColumnName[].ToString().ToLower()) #> = value; }
                 }                    

             <#
                 }
             #>

             }                

             <#
              #>
 }