wpf 的dispatcher

   wpf項目中後臺代碼調用界面控件時，會提示進程調用的錯誤。

 

        private Thread JxThread = null;  //定義線程

        private DataLoading.Loading nLoadW=new DataLoading.Loading();
        private void ShowMessage()                                                 //要讓主線程完成的事情
        {

            nLoadW.Dispatcher.BeginInvoke(new Action(() =>
            {
                nLoadW.Left = MWLeft;
                nLoadW.Top = MWTop;
                nLoadW.Show();
            }));

            System.Windows.Threading.Dispatcher.Run();
        }