protected void deleteLinkButton_OnClick(object sender, EventArgs e)
        {
            LinkButton           deleteLinkButton = (LinkButton)sender;
            DataControlFieldCell controlFieldCell = (DataControlFieldCell)deleteLinkButton.Parent;
            GridViewRow          row           = (GridViewRow)controlFieldCell.Parent;
            HiddenField          idHiddenField = (HiddenField)row.FindControl("idHiddenField");
            int id = Convert.ToInt32(idHiddenField.Value);

            productCategoryManager.Delete(id);
            //productCategoryManager.DeleteItemSetupCategoryId(id);

            productCategoryGridView.DataSource = productCategoryManager.GetAllProductCategory();
            productCategoryGridView.DataBind();
        }