.Net中如何连接到ODBC数据源

1.下载ODBC.NET (FrameWork 2.0以上默认未安装)

下载地址:http://www.microsoft.com/downloads/details.aspx?familyid=6ccd8427-1017-4f33-a062-d165078e32b1

2.创建项目，添加Microsoft.Data.ODBC.dll 引用

3.cs代码如下:

using System.Data;
using Microsoft.Data.Odbc;

4.连接代码示例:

SqlServer:

OdbcConnection cn;
        OdbcCommand cmd;
        string MyString;

        MyString="Select * from Customers";

        cn= new OdbcConnection("Driver={SQL Server};Server=mySQLServer;UID=sa;
                               PWD=myPassword;Database=Northwind;");

        cmd=new OdbcCommand(MyString,cn);
        cn.Open();

        MessageBox.Show("Connected");

        cn.Close();

OLEDB JET:

OdbcConnection cn;
        OdbcCommand cmd;
        string MyString;

        MyString="Select * from Titles";

        cn= new OdbcConnection("Driver={Microsoft Access Driver (*.mdb)};
            DBQ=D:\Program Files\Microsoft Office\Office10\Samples\Northwind.mdb;UID=;PWD=;");
              
        cmd=new OdbcCommand(MyString,cn);
        cn.Open();
        MessageBox.Show("Connected");

        cn.Close();

Oracle:

OdbcConnection cn;
       OdbcCommand cmd;
       string MyString;

       MyString="Select * from Customers";

       cn= new OdbcConnection("Driver={Microsoft ODBC for oracle};Server=myOracleServer;
                               UID=demo;PWD=demo;");

       cmd=new OdbcCommand(MyString,cn);
       cn.Open();

       MessageBox.Show("Connected");

       cn.Close();

DSN:

OdbcConnection cn;
       OdbcCommand cmd;
       string MyString;

       MyString="Select * from Customers";

       cn= new OdbcConnection("dsn=myDSN;UID=myUid;PWD=myPwd;");

       cmd=new OdbcCommand(MyString,cn);

       cn.Open();
       MessageBox.Show("Connected");

       cn.Close();