连接SQL Server的字符串

项目下的App_Data目录用

String strConn = @"Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\guest.mdf;Integrated Security=True";

本机单独安装的SQL Server用

//【1】windows认证模式：  
String strCon = "Data Source=localhost;Initial Catalog=MyDatabase;Integrated Security=true";  

 //【2】SQLServer集成认证

string strConn2 = "Data Source=localhost;Initial Catalog=MyDatabase;uid=sa;pwd=zz"; 

 //【3】通过连接字符串生成器生成  
 //SqlConnectionStringBuilder scsb = new SqlConnectionStringBuilder();
 //scsb.DataSource = "localhost";
 //scsb.InitialCatalog = "MyDatabase";
 //scsb.UserID = "sa";
 //scsb.Password = "zz";
 //String strCon = scsb.ConnectionString;  //得到连接字符串