WPF multithreaded Demo

Several ways to work with threads in WPF:

1. Simple DispatcherTimer like a timer control

2. When you need to handle UI synchronization, Dispatcher dispatcheropertion

3. Enhanced Thread Object System.Windows.Threading

4.BackgroundWorker Build Object

Here are a few examples of how to do this: XAML files

<window x:class= "WPF multithreaded Demo. MainWindow" xmlns= "http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x= "Http://schemas.microsoft.com/winfx/2006/xaml" title= "MainWindow" height= "," width= "525" background= "Bl Anchedalmond "> <Grid> <label content=" UI Multithreading Demo "Fontsize=" height= "margin=" "139,28,205,0" Nam E= "Label1" verticalalignment= "Top"/> <button content= "DispatcherTimer" height= "Notoginseng" margin= "103,73,129,0" Na  Me= "Button1" verticalalignment= "Top" click= "Button1_Click"/> <button content= "Dispatcherthread" Height= "35" Margin= "103,116,129,0" name= "Button2" verticalalignment= "Top" click= "button2_click"/> <button "Content=" Thr EAD "margin=" 103,167,129,111 "name=" Button3 "click=" Button3_Click "/>" <button content= "BackgroundWorker" Hei ght= "margin=" "103,0,129,65" Name= "Button4" verticalalignment= "Bottom" click= "Button4_Click"/> <progressb Ar height= "margin=" 64,0,103,24 "Name=" progressBar1 "verticalalignment=" Bottom "/> <label height=" horizontalalignment= "right" Margin= "0,252,22,0" name= "Label2" verticalalignment= "Top" width= "a"/> </Grid> </Window>

Using System;
Using System.Collections.Generic;
Using System.Linq;
Using System.Text;
Using System.Windows;
Using System.Windows.Controls;
Using System.Windows.Data;
Using System.Windows.Documents;
Using System.Windows.Input;
Using System.Windows.Media;
Using System.Windows.Media.Imaging;
Using System.Windows.Navigation;
Using System.Windows.Shapes;

Introducing a thread namespace using System.Windows.Threading; Namespace WPF multithreaded Demo {///<summary>///mainwindow.xaml Interactive logic///</summary> public partial CLA
        SS Mainwindow:window {public MainWindow () {InitializeComponent (); }//Mode one DispatcherTimer TM = new DispatcherTimer ()//Instantiate a DispatcherTimer object private void Button1_c Lick (object sender, RoutedEventArgs e) {TM. Tick + = new EventHandler (tm_tick);//Subscribe to Tick Event TM.
            Interval = Timespan.fromseconds (0.05); Tm.
            Start (); Tm.
        Stop (); } void Tm_tick (objecT sender, EventArgs e) {if (progressbar1.value<=100) {Progressbar1.va
                lue++;
            This.label2.Content = progressbar1.value++ + "%"; else {TM.
            Stop (); Mode two public void newactionthread (int value) {THIS.PROGRESSBA R1.
            Value = value;
            This.label2.Content = progressbar1.value++ + "%";
        System.Threading.Thread.Sleep (100); }//Use thread method public void Dispatcherthread () {Dispatcher Newdispatcher = Dispat Cher.

            CURRENTDISPATCHER;//provides a thread working environment action<int> newaction = new action<int> (this.newactionthread);
                for (int i = 0; i < i++) {Newdispatcher.invoke (newaction, i);
                System.Threading.Thread.Sleep (100); This.
                DoEvents (); NewDispatcher.Thread.Abort (); } private void Button2_Click (object sender, RoutedEventArgs e) {dispatcherthread ()
        ; }//mode three public void NewActionThread2 (object value) {action<int> newaction = n
            EW action<int> (This.newactionthread);
        This.progressBar1.Dispatcher.Invoke (newaction, (int) value);//synchronously executes the specified delegate System.Threading.Thread.Sleep (100);
            The thread//System.Threading.Thread in the public void thread () {//winform; Thread//system.windows.threading.dispatcher.currentdispatcher.thread system.threading.p in a WPF environment


            Arameterizedthreadstart ts = new System.Threading.ParameterizedThreadStart (this.newactionthread2);//A thread executes a delegate for (int i = 0; I <= i++) {System.Threading.Thread t = new System.Threading.Thread (t
                s); System.Threading.Thread.
                Sleep (100);
                T.start (i);
                This.label2.Content = progressbar1.value++ + "%"; This. DoEvents ()//Interface Refresh}} private void Button3_Click (object sender, RoutedEventArgs
        e) {Thread (); }//Mode four BackgroundWorker//http://msdn.microsoft.com/zh-cn/library/vstudio/system.componentmodel.background
        worker.aspx more information System.ComponentModel.BackgroundWorker bw; private void Button4_Click (object sender, RoutedEventArgs e) {bw = new System.ComponentModel.Backgrou Ndworker ()///Create BackgroundWorker object instance bw. DoWork + = new System.ComponentModel.DoWorkEventHandler (bw_dowork);//Subscribe to DoWork event bw. ProgressChanged + = new System.ComponentModel.ProgressChangedEventHandler (bw_progresschanged);//Subscribe to report process event bw.
            Workerreportsprogress = true; Bw. RunWorkerAsync ()//start background operation} void Bw_progresschangEd (object sender, System.ComponentModel.ProgressChangedEventArgs e) {this.progressBar1.Value = E.prog
        resspercentage;//get Progress percent This.label2.Content = (e.progresspercentage.tostring () + "%");  } void Bw_dowork (object sender, System.ComponentModel.DoWorkEventArgs e) {for (int i = 0; i <= 100;
                i++) {this.bw.ReportProgress (i);
            System.Threading.Thread.Sleep (100); //Mode 5 We can use thread parallelism to process}}

In the class ex is an extension method. Make interface Refresh

public static class Ex
    {
        //extension method for interface refresh public
        static void DoEvents (this Window win)
        {
            DispatcherFrame frame = new DispatcherFrame ();
            Dispatcher.CurrentDispatcher.BeginInvoke (Dispatcherpriority.background,
                new Dispatcheroperationcallback ( Exitframes), frame);
            Dispatcher.pushframe (frame);

        public static object Exitframes (object f)
        {
            (dispatcherframe) f). Continue = false;
            return null;
        }
    }

Effect Display:

Demo Download: Http://files.cnblogs.com/BABLOVE/WPF%E5%A4%9A%E7%BA%BF%E7%A8%8B%E6%BC%94%E7%A4%BA.rar

Reproduced from: http://www.cnblogs.com/BABLOVE/p/3235971.html