WPF的实时更新

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public partial class App : Application     {         #region DoEvent         private static DispatcherOperationCallback exitFrameCallback = new DispatcherOperationCallback(ExitFrame);         private static Object ExitFrame(Object state)         {             DispatcherFrame frame = state as DispatcherFrame;             // Exit the nested message loop.                        if (frame != null)             { frame.Continue = false; }             return null;         }         public static void DoEvents()         {             DispatcherFrame nestedFrame = new DispatcherFrame();             DispatcherOperation exitOperation = Dispatcher.CurrentDispatcher.BeginInvoke(DispatcherPriority.Background, exitFrameCallback, nestedFrame);             Dispatcher.PushFrame(nestedFrame);             if (exitOperation.Status != DispatcherOperationStatus.Completed)             {                 exitOperation.Abort();             }         }         #endregion }

　　在使用的过程中，可以在 Application.Current.Dispatcher.Invoke中调用来更新了