private void BindDropDownList() { //Bind Category proCatController.BuildTreeCat(ddlCategory); proCatController.BuildCheckBoxListCat(lstOtherCat); //Bind Layout ddlGift.DataSource = proColorController.SellectAllProductGift(); ddlGift.DataValueField = "ID"; ddlGift.DataTextField = "ProductGift"; ddlGift.DataBind(); ddlGift.Items.Insert(0, new ListItem("-----Select gift type-----", "0")); }