private void 除ToolStripMenuItem_Click(object sender, EventArgs e)
{
if (this.listView1.SelectedItems.Count > 0)
{
//if (MessageBox.Show("是否删除该设备类型？") == DialogResult.OK)
if (MessageBox.Show("确定要删除该设备类型吗？", "提示", MessageBoxButtons.YesNo) == DialogResult.Yes)
{
if (this.listView1.SelectedItems[0].Tag is DeviceType)
{
var deviceType = this.listView1.SelectedItems[0].Tag as DeviceType;
var serialnum = deviceType.Serialnum;
List <ControlDeviceUnit> controlDeviceUnitList =
ControlDeviceUnit.FindAllByDeviceTypeSerialnum(serialnum);
if (controlDeviceUnitList != null)
{
MessageBox.Show("该设备类型已经在使用，不能删除");
return;
}
DeviceType.Delete(deviceType);
this.InitDeviceTypeListView();
this.deviceTypeSerialnum = null;
}
}
}
}