//here we will add product name in dropdown// public void GetProductName() { Object CatagoryByProduct = new Object(); CatagoryByProduct.Category_Name = HiddenCatagoryName.Value; DataTable dt = BSLAYER.ProductByCatagory(CatagoryByProduct); DdlProduct.DataSource = dt; DdlProduct.DataTextField = "Product_Name"; DdlProduct.DataValueField = "Product_Name"; DdlProduct.DataBind(); DdlProduct.Items.Insert(0, "--Filter By Product--"); }