private void Button1_Click (object sender, System.EventArgs e) {myConnection = new OleDbConnection ( "Provider = Microsoft.Jet.OLEDB.4.0; data source =" Server.MapPath ( "aa.mdb")); string s2 = TextBox2 .Text; STRING S1 = TextBox1.text; OLEDBCOMMAND CMD = New OLEDBCOMMAND ("Select * from [user] where username = ' s1 "' and pWD = '" S2 "' ", myconnection); dsuser = new dataset (); OLEDBDATAREADER OBJDATAREADER; cmd.connection.open (); objDataReader = cmd.executeReader (); if (ObjDataReader.Read () == true) {response.cookies ["UserName"]. Value = "" TextBox1. Text ""; Response.Redirect ("xiaotou.aspx");