直接连接*.mdf 文件 获取随机数据

SqlConnection con = new SqlConnection();
string s = System.Environment.CurrentDirectory; //exe 所在路径
int i = 0;
while (i < 0)
{
i++;
int add = s.LastIndexOf(@"\");
s = s.Substring(0, add);
}
s += "\\ERP_IIP.mdf";
try
{
con.ConnectionString = "Data Source=.\\;AttachDbFilename=" + s + ";Integrated Security=True;User Instance=false";
con.Open();

DataSet ds = new DataSet();
string SQLString = "SELECT     TOP (2) ID, USERID, PWD, WORKERCODE, USERNAME, ROLEID, ISEFFECT, WSHCODE, Sex FROM         TB_USER ORDER BY NEWID()";
SqlDataAdapter command = new SqlDataAdapter(SQLString, con);
command.Fill(ds, "ds");
con.Close();
Program.name = ds.Tables[0].Rows[0]["USERNAME"].ToString();
}
catch
{
Program.name = "无数据源！";
}
label1.Text = Program.name;