ASP.NET高人请进！！！

显示全部楼层 · 2010-2-24 16:30:25

using System.Configuration;你引用了没？

千问 · 2010-2-24 16:30:25

把["ConnectionString"]里的ConnectionString换成str

千问 · 2010-2-24 16:30:25

web.Config 数据库连接类 private static SqlConnection con;
///
/// 返回连接对象
///
public static SqlConnection Con
{
get
{
string conString = ConfigurationManager.ConnectionStrings["SqlConString"].ConnectionString;
if (con == null)
{
con = new SqlConnection(conString);
con.Open();
}
else if (con.State == ConnectionState.Closed)//连接处于关闭状态
{
con.Open();
}
else if (con.State == ConnectionState.Broken)//与数据源的连接中断
{
con.Close();
con.Open();
}
return DBHelper.con;
}
}

千问 · 2010-2-24 16:30:25

ConfigurationManager.ConnectionStrings["ConnectionString"].ToString()的值不是你要的，应该是ConfigurationManager.ConnectionStrings["str"].ConnectionString而不是Tostring（）