.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();