源代码：13033480群共享

一、新建解决方案MyADOdotNET。

二、在解决方案中添加类库项目Data，设置属性。

三、在类库Data中添加类Data.cs。

四、在Data.cs中添加代码：

namespace WestGarden.Data
{namespace SqlClient{public class SqlConnection{public string Information = "WestGarden.Data.SqlClient.SqlConnection";}public class SqlCommand{public string Information = "WestGarden.Data.SqlClient.SqlCommand";}public class SqlDataReader{public string Information = "WestGarden.Data.SqlClient.SqlDataReader";}public class SqlDataAdapter{public string Information = "WestGarden.Data.SqlClient.SqlDataAdapter";}}namespace OleDb{public class OleDbConnection{public string Information = "WestGarden.Data.OleDb.OleDbConnection";}public class OleDbCommand{public string Information = "WestGarden.Data.OleDb.OleDbCommand";}public class OleDbDataReader{public string Information = "WestGarden.Data.OleDb.OleDbDataReader";}public class OleDbDataAdapter{public string Information = "WestGarden.Data.OleDb.OleDbDataAdapter";}}namespace Odbc{public class OdbcConnection{public string Information = "WestGarden.Data.Odbc.OdbcConnection";}public class OdbcCommand{public string Information = "WestGarden.Data.Odbc.OdbcCommand";}public class OdbcDataReader{public string Information = "WestGarden.Data.Odbc.OdbcDataReader";}public class OdbcDataAdapter{public string Information = "WestGarden.Data.Odbc.OdbcDataAdapter";}}namespace OracleClient{public class OracleConnection{public string Information = "WestGarden.Data.OracleClient.OracleConnection";}public class OracleCommand{public string Information = "WestGarden.Data.OracleClient.OracleCommand";}public class OracleDataReader{public string Information = "WestGarden.Data.OracleClient.OracleDataReader";}public class OracleDataAdapter{public string Information = "WestGarden.Data.OracleClient.OracleDataAdapter";}}
}

五、在解决方案中添加网站项目Web。

六、在Default.aspx.cs中添加代码：

using System;

using WestGarden.Data.SqlClient;

using WestGarden.Data.OleDb;

using WestGarden.Data.Odbc;

using WestGarden.Data.OracleClient;

namespace WestGarden.Web

{

public partial class Default : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

Response.Write("SQLServer.NET数据提供程序核心类有4个，分别是：</br>");

SQLServer();

Response.Write("OleDb.NET数据提供程序核心类有4个，分别是：</br>");

OleDb();

Response.Write("Odbc.NET数据提供程序核心类有4个，分别是：</br>");

Odbc();

Response.Write("Oracle.NET数据提供程序核心类有4个，分别是：</br>");

Oracle();

}

void SQLServer()

{

SqlConnection conn = new SqlConnection();

SqlCommand cmd = new SqlCommand();

SqlDataReader rdr = new SqlDataReader();

SqlDataAdapter da = new SqlDataAdapter();

Response.Write(conn.Information + "</br>");

Response.Write(cmd.Information + "</br>");

Response.Write(rdr.Information + "</br>");

Response.Write(da.Information + "</br></br>");

}

void OleDb()

{

OleDbConnection conn = new OleDbConnection();

OleDbCommand cmd = new OleDbCommand();

OleDbDataReader rdr = new OleDbDataReader();

OleDbDataAdapter da = new OleDbDataAdapter();

Response.Write(conn.Information + "</br>");

Response.Write(cmd.Information + "</br>");

Response.Write(rdr.Information + "</br>");

Response.Write(da.Information + "</br></br>");

}

void Odbc()

{

OdbcConnection conn = new OdbcConnection();

OdbcCommand cmd = new OdbcCommand();

OdbcDataReader rdr = new OdbcDataReader();

OdbcDataAdapter da = new OdbcDataAdapter();

Response.Write(conn.Information + "</br>");

Response.Write(cmd.Information + "</br>");

Response.Write(rdr.Information + "</br>");

Response.Write(da.Information + "</br></br>");

}

void Oracle()

{

OracleConnection conn = new OracleConnection();

OracleCommand cmd = new OracleCommand();

OracleDataReader rdr = new OracleDataReader();

OracleDataAdapter da = new OracleDataAdapter();

Response.Write(conn.Information + "</br>");

Response.Write(cmd.Information + "</br>");

Response.Write(rdr.Information + "</br>");

Response.Write(da.Information + "</br></br>");

}

}

}

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