protected void loginButton_Click(object sender, EventArgs e) { string msg = ""; Center aCenterLogin = new Center(); aCenterLogin.CenterUserId = codeTextBox.Text; aCenterLogin.CenterPassword = passwrdTextBox.Text; CenterManager aCenterManager = new CenterManager(); aCenterLogin = aCenterManager.FindCodePswrd(aCenterLogin); if (aCenterLogin == null) { msg = "Code & Password does not exist!!"; } else { Session["CenterId"] = aCenterLogin.CenterId; Response.Redirect("CenterIndexPageUI.aspx"); } }