private void btnRtoL_Click(object sender, EventArgs e) { try { if (GVTableNotSelectedDevice.RowCount > 0) { var mainObj = new MainFrm(); var db = new linqDataContext(); db.ChangeDeviceSrvMan(Convert.ToInt32(GVTableNotSelectedDevice.CurrentRow.Cells[0].Value), Convert.ToInt32(idvalue)); GVTableNotSelectedDevice.DataSource = db.ShowDeviceNSofSrvman(); GVTableSelectedDevice.DataSource = db.ShowDeviceSofSrvman(Convert.ToInt32(idvalue)); } } catch (System.Exception ex) { System.Windows.Forms.MessageBox.Show(ex.Message); } }