private void deleteToolStripMenuItem_Click(object sender, EventArgs e) { if (dataGridView1.Focused) { DataGridViewRow row = dataGridView1.SelectedRows[0]; VpnManagerDal.DeleteMachine(Convert.ToInt32(row.Cells[0].Value)); } else { if (dataGridView1.SelectedRows.Count > 0) { DataGridViewRow row = dataGridView2.SelectedRows[0]; VpnManagerDal.DeleteExtensionObject(Convert.ToInt32(row.Cells[0].Value)); if (rdPlant.Checked) { extensionObjectDTOBindingSource.DataSource = VpnManagerDal.GetExtensionObjects(_plant, (int)TargetTable.Plant); } else { extensionObjectDTOBindingSource.DataSource = VpnManagerDal.GetExtensionObjects(_machineID, (int)TargetTable.Machine); } } else { MessageBox.Show("Select a Object before"); } } }