private void cmdClearData_Click(object sender, EventArgs e) { try { ProductService service = new ProductService(); bool delete = service.deteData(); if (delete) { lblresultdb.Visible = true; lblresultdb.Text = "ź���������º��������"; } else { lblresultdb.Visible = true; lblresultdb.Text = "�������öź�������� ���ͧ�ҡ "; } } catch (Exception ex) { lblresultdb.Visible = true; lblresultdb.Text = "�������öź�������� ���ͧ�ҡ "+ex.Message; } }