通知UI线程 WPF

使用  Process 创建新的线程

        private Process _ProcessSearch;
        private void InitializeProcess()
        {
            try
            {
                _ProcessSearch = new Process("Search");
                _ProcessSearch.OnStart += _ProcessSearch_OnStart;
                _ProcessSearch.OnCompleted += _ProcessSearch_OnCompleted;
            }
            catch (PresentationException pex)
            {
                throw pex;
            }
            catch (Exception ex)
            {
                throw new PresentationException(ex);
            }
        }

启动线程

public void Search()
 {
   _ProcessSearch.Start();
 }

在Start方法里通知UI线程

        private void _ProcessSearch_OnStart(object sender, ProcessStartedEventArgs e)
        {
            try
            {
                Application.Current.Dispatcher.Invoke(() => YourMethod());
            }
            catch (PresentationException pex)
            {
                pex.Report();
            }
            catch (Exception ex)
            {
                new PresentationException(ex).Report();
            }
        }

不会阻塞UI线程

Application.Current.Dispatcher.Invoke(() => YourMethod());

使用MVVM的话可以直接用

View.Dispatcher.Invoke(() => YourMethod());
原文地址:https://www.cnblogs.com/zqt14520/p/8638061.html