标准WinForm处理消息队列的方法是System.Windows.Forms.Application.DoEvents()方法,在WPF中也可以使用,但是需要加载System.Windows.Forms程序集,另外,Application.DoEvents不能支持WPF的Dispatcher的调度优先级。
推荐阅读:《WPF线程》
下面是网上搜索到的一种模拟Application.DoEvents的解决方案:
转自:http://blog.youkuaiyun.com/senophen/archive/2009/08/10/4431215.aspx
内容:
using System; using System.Security.Permissions; using System.Windows.Threading; public class DispatcherHelper { /// <summary> /// Simulate Application.DoEvents function of <see cref=" System.Windows.Forms.Application"/> class. /// </summary> [SecurityPermissionAttribute(SecurityAction.Demand, Flags = SecurityPermissionFlag.UnmanagedCode)] public static void DoEvents() { var frame = new DispatcherFrame(); Dispatcher.CurrentDispatcher.BeginInvoke(DispatcherPriority.Background, new DispatcherOperationCallback(ExitFrames), frame); try { Dispatcher.PushFrame(frame); } catch (InvalidOperationException) { } } private static object ExitFrames(object frame) { ((DispatcherFrame)frame).Continue = false; return null; } }