WPF UI线程 DispatcherSynchronizationContext 队列 在WPF中使用多线程更新UI 有经验的程序员们都知道:不能在UI线程上进行耗时操作,那样会造成界面卡顿,如下就是一个简单的示例: publicpartialclassMainWindowWindow { public MainWindow() { InitializeComponent(); this.Dispatcher.Invoke(newAction(()=> { })); thi...
uiContext = new DispatcherSynchronizationContext(Dispatcher.CurrentDispatcher); 创建了一个新的DispatcherSynchronizationContext实例,该实例与当前线程的Dispatcher关联。这样,当你使用uiContext.Post或uiContext.Send方法排队工作项时,它们将通过Dispatcher在正确的线程上执行。 然后,SynchronizationContext.SetSynchronizationContex...
一、WCF线程亲和性（Thread Affinity） 对于服务端来说，WCF消息监听和接收体系通过IO线程池并发的处理来...
一、SynchronizationContext类用法: 1、对于WindowsFrom应用程序,如果想在某个类中,不方便使用到控件的Invoke方法时,可以使用WindowsBase.dll下的System.Thread.SynchronizationContext。 namespaceFormDispatcher {publicpartialclassForm1 : Form {publicForm1() { InitializeComponent(); Thread.CurrentThread.Name="这是主线...
var result= await ExampleTask(2); //等待两秒,异步执行完成,再在同步上下文异步执行 synchronizationContext.Post((state) => { //模仿_dispatcher.BeginInvoke Debug.WriteLine($"Thread Id is Thread:{Thread.CurrentThread.ManagedThreadId},Is Thread Pool:{Thread.CurrentThread.IsThreadPoolThread}"); ...
SynchronizationContext.Current为nullEN当在主线程上调用时，SynchronizationContext.Current属性将只返回值。
In the book Essential Windows Presentation Foundation of page 426, author gives us an example of how to using SynchronizationContext to deal the communication between the UI thread and a background thread. if you have interesting, you can check it. update: There is another article...
The synchronization context of WPF handles suspending the code, which allows WPF to continue to run. A diagram demonstrating the example app's workflow. The app has a single button with the text "Fetch Forecast." There's an arrow pointing to the next phase of the app after the button is...
The synchronization context of WPF handles suspending the code, which allows WPF to continue to run. A diagram demonstrating the example app's workflow. The app has a single button with the text "Fetch Forecast." There's an arrow pointing to the next phase of the app after the button is...
TaskScheduler.FromCurrentSynchronizationContext); Loading.SetIsShow(MyBasicControls,true); task.Start; } 基础控件上添加等待动画。 privatevoidBtnLoading_Click(objectsender, RoutedEventArgs e) { vartask =newTask( => { Thread.Sleep(5000); }); ...