protected void btnShow_Click(object sender, EventArgs e) { ServiceReference1.ServiceClient obj = new ServiceReference1.ServiceClient(); DataSet dsObj = obj.QueryCarPart(txtPartNo.Text); if (dsObj.Tables[0].Rows.Count == 0) { btnSave.Visible = false; lblStatus.Text = ""; } else { GridView1.DataSource = dsObj.Tables[0]; btnSave.Visible = true; lblStatus.Text = ""; } GridView1.DataBind(); }