private void BtnSearchLocation_Click(object sender, EventArgs e) { try { using (DBAuditDataContext dc = new DBAuditDataContext()) { var c = dc.ProGetCureByLocationID(int.Parse(ComboLocation.SelectedValue.ToString())); GrdViewCure.DataSource = c; ComboName.Text = ""; TxtDocNo.Text = ""; } } catch (Exception EX) { MessageBox.Show(EX.Message); } }