public List <string> BindAllSKU(string sku) { productManager objProduct = new productManager(); objProduct.sku = Convert.ToString(sku); List <string> MPN = new List <string>(); DataTable dt = new DataTable(); dt = objProduct.BindAllSKU(); if (dt.Rows.Count > 0) { foreach (DataRow dr in dt.Rows) { MPN.Add(dr["sku"].ToString()); } } else { MPN.Add("No SKU Found"); } return(MPN); }