some times we need pause thread to do some additional job:
c# thread pause example as below:
1. create a threadLoader usercontrol
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;
using System.IO;
using System.Net;
using System.ComponentModel;
namespace WzlyTool
{
/// <summary>
/// Interaction logic for VideoDownLoader.xaml
/// </summary>
public partial class MailMsg : Grid
{
bool isBussy = true;
public string StrFileName = "";
BackgroundWorker worker;
public UserInfo ui;
bool isTest;
ResultInfo rt; public MailMsg()
{
InitializeComponent();
} public MailMsg(UserInfo ui,bool isTest)
{
this.ui = ui;
this.isTest = isTest;
InitializeComponent();
worker = new BackgroundWorker();
worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(worker_RunWorkerCompleted);
worker.DoWork += new DoWorkEventHandler(worker_DoWork);
if (!isTest) {
BitmapImage b = new BitmapImage(new Uri(ui.picUrl, UriKind.RelativeOrAbsolute));
img.Source = b;
} worker.RunWorkerAsync();
// bindData();
} void worker_DoWork(object sender, DoWorkEventArgs e)
{
isBussy = true; if (Common.isChangingAccount) {
rt = new ResultInfo() { code = 3, isSucc = true, msg = "changing account........" };
return; } if (isTest)
{ rt = new ResultInfo() { code=1, isSucc =true, msg="OK" };
if (Common.rnd.Next(1, 9) >4) { rt.code = 3;
rt. msg = "changing account........";
changeAccount(); } System.Threading.Thread.Sleep(1000);
return;
} else
{
if (Common.gMsgType == MsgType.chatMsg)
{
rt = BLL.SendMsg(ui.uid);
}
else
{
rt = BLL.SayHello(ui.uid);
} if (rt.isSucc)
{
//save db
rt.code = 1;
rt.msg = "OK"; }
} isBussy = false ; } void worker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{ lbLoadStatus.Content = "" + rt.code + " " + rt.msg ;
isBussy = false;
worker = null; } void changeAccount() { Common.isChangingAccount = true;
System.Threading.Thread.Sleep(5000);
Common.isChangingAccount = false ;
} void testDownload() { WebClient wc = new WebClient();
byte[] b = wc.DownloadData("http://v11-tt.ixigua.com/d6daf13754d6d6250d442222be63e361/5b03c8a9/video/m/220c7dadd2606804a9eb1e88835c5f6165f1157546f0000ae2fd17a1f81/");
Stream fs = File.Create("D:\\1.mp4");
fs.Write(b, 0, b.Length);
// StreamWriter w = new StreamWriter(fs);
// w.Write(b);
fs.Flush();
fs.Close(); } }
}
the data class:
public class UserInfo
{
public string picUrl {get;set; }
public string uid { get; set; }
public int age { get; set; }
public string sex { get; set; }
public string home { get; set; }
public string nickname { get; set; }
public string userDescinfo { get; set; } } public class ResultInfo
{ public int code { get; set; }
public bool isSucc { get; set; }
public string msg { get; set; }
public object retObj { get; set; } }
public static class Common
{
public static bool isChangingAccount=false ;
public static Random rnd = new Random();
public static CookieContainer myCookieContainer = new CookieContainer();
public static MsgType gMsgType = MsgType.sayHi;
}
public enum MsgType {
sayHi=0, chatMsg=1
}
the main window to do:
BackgroundWorker worker;
bool stopFlag = true ;
public TestMainWind()
{
InitializeComponent();
Loaded += new RoutedEventHandler(MainWindow_Loaded);
moreSearshBtnUI1.Hyperlink_Click += new EventHandler(moreSearshBtnUI1_Hyperlink_Click);
worker = new BackgroundWorker();
worker.WorkerSupportsCancellation = true;
worker.DoWork += new DoWorkEventHandler(worker_DoWork);
worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(worker_RunWorkerCompleted);
worker.WorkerSupportsCancellation = true;
}
void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
}
void worker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
btnStart.IsEnabled = true ;
btnStart.Content = "satrt";
}
void worker_DoWork(object sender, DoWorkEventArgs e)
{
while (!stopFlag)
{
System.Threading.Thread.Sleep(1000);
while (Common.isChangingAccount) {
System.Threading.Thread.Sleep(1000);
}
Dispatcher.Invoke(new Action (() => {
for (int i = 0; i < myWrapPanel.Children.Count;i++ )
{
// if(myWrapPanel.Children[i] as
}
UserInfo ui = new UserInfo();
myWrapPanel.Children.Add(new MailMsg(ui,true));
myScrollViewer.ScrollToEnd();
lbCnt.Content = "" + myWrapPanel.Children.Count;
}));
}
}
the user control UI:
<Grid x:Class="WzlyTool.MailMsg"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d" Background="White"
Name="gridRoot"
Height="200" Width="200" Margin="2" RenderTransformOrigin="0.5,0.5" Opacity="0">
<Grid.RenderTransform>
<ScaleTransform x:Name="t" ScaleX="1"/>
</Grid.RenderTransform>
<Grid.Triggers>
<EventTrigger RoutedEvent="Loaded">
<EventTrigger.Actions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation From="0" To="1" Storyboard.TargetName="t" Storyboard.TargetProperty="ScaleX"></DoubleAnimation>
<DoubleAnimation From="0" To="1" Storyboard.TargetName="t" Storyboard.TargetProperty="ScaleY"></DoubleAnimation>
<DoubleAnimation From="0" To="1" Storyboard.TargetName="gridRoot" Storyboard.TargetProperty="Opacity"></DoubleAnimation> </Storyboard>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger> </Grid.Triggers>
<Grid>
<Rectangle Stroke="Gray" Fill="WhiteSmoke" StrokeThickness="2"></Rectangle>
<Image Name="img" Stretch="UniformToFill"/>
<Label Name="lbLoadStatus" Height="22"></Label>
</Grid>
</Grid>