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(); }