Question

WPF：如何在工作线程中更新窗体的UI元素（Dis

Answer 1

360问答
如何在工作线程中更新窗体的UI元素

woshirhj LV12
2014-12-07
满意答案

hxmaitt
LV12
2014-12-08
using System; using System.Windows; using System.Threading; namespace WpfApplication1 { /// /// Window1.xaml 的交互逻辑 /// public partial class Window1 : Window { publicWindow1() { InitializeComponent(); } private void button1_Click(object sender, RoutedEventArgs e) { //错误的写法：直接更新 new Thread(() => { progressBar1.Value = 20; }).Start(); } private void button2_Click(object sender, RoutedEventArgs e) { //正确的写法：通知主线程去完成更新 new Thread(()=>{ this.Dispatcher.Invoke(new Action(()=>{ progressBar1.Value=20; })); }).Start(); } } }