MVVM光线程示例

Question

有没有关于如何使用MVVM Light的线程部分的例子？在正常的.net线程中使用MVVMLight.threading有什么好处？

Answer 1

看起来像mvvmlight所有线程部分是这个类：

public static class DispatcherHelper 
{ 

    public static Dispatcher UIDispatcher 
    { 
     get; 
     private set; 
    } 

    /// <summary> 
    /// Executes an action on the UI thread. If this method is called 
    /// from the UI thread, the action is executed immendiately. If the 
    /// method is called from another thread, the action will be enqueued 
    /// on the UI thread's dispatcher and executed asynchronously. 
    /// <para>For additional operations on the UI thread, you can get a 
    /// reference to the UI thread's dispatcher thanks to the property 
    /// <see cref="UIDispatcher" /></para>. 
    /// </summary> 
    /// <param name="action">The action that will be executed on the UI 
    /// thread.</param> 
    public static void CheckBeginInvokeOnUI(Action action) 
    { 
     if (UIDispatcher.CheckAccess()) 
     { 
      action(); 
     } 
     else 
     { 
      UIDispatcher.BeginInvoke(action); 
     } 
    } 

    /// <summary> 
    /// This method should be called once on the UI thread to ensure that 
    /// the <see cref="UIDispatcher" /> property is initialized. 
    /// <para>In a Silverlight application, call this method in the 
    /// Application_Startup event handler, after the MainPage is constructed.</para> 
    /// <para>In WPF, call this method on the static App() constructor.</para> 
    /// </summary> 
    public static void Initialize() 
    { 
     if (UIDispatcher != null) 
     { 
      return; 
     } 

     // for silverlight 
     UIDispatcher = Deployment.Current.Dispatcher; 

     // wpf 
     //IDispatcher = Dispatcher.CurrentDispatcher; 

    } 
} 

}

，这一切。使用DispatcherHelper.Initialize（）根据静态构造应用程序（WPF）或Application_Startup事件处理程序（Silverlight的）评论 - 然后u可以使用DispatcherHelper.CheckBeginInvokeOnUI（动作动作）

问候