C# 连接各种数据库总结。

1、连接Access

 

 1 public static OleDbConnection getConn()
 2 {
 3             OleDbConnection Conn=null;
 4             string StrConn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\AccessDataBase\GuangXi.mdb";
 5             try
 6             {
 7                 if (File.Exists(@"D:\AccessDataBase\GuangXi.mdb"))
 8                 {
 9                     Conn = new OleDbConnection(StrConn);
10                     Conn.Open();
11                 }         
12                 return Conn;
13             }
14             catch
15             {
16                 return null;
17             }
18 }