public void bind_country() { try { dtt = dl.bind_country(); ddl_country.Items.Clear(); ddl_country.DataSource = dtt.table; ddl_country.DataTextField = "Name"; ddl_country.DataValueField = "Id"; ddl_country.DataBind(); ddl_country.Items.Insert(0, new ListItem("Select Country", "0")); } catch (NullReferenceException) { // Utilities.MessageBox_UpdatePanel_Redirect(UpdatePanel2, "Your Session Has Expired Please Login Again", "../Logout.aspx"); } }