private void BindCityFrom() { PurchaseBillDAL obj = new PurchaseBillDAL(); var ToCity = obj.BindFromCity(); obj = null; drpCityFrom.DataSource = ToCity; drpCityFrom.DataTextField = "City_Name"; drpCityFrom.DataValueField = "City_Idno"; drpCityFrom.DataBind(); drpCityFrom.Items.Insert(0, new ListItem("--Select--", "0")); }