发布：2023/3/20 0:23:58作者：管理员 来源：本站 浏览次数：454
一、封装可重用类
public class Async
{
protected BackgroundWorker bgWorker = new BackgroundWorker();
/**
* 业务方法
*/
public static Async DoWork(Action<object?, DoWorkEventArgs> DoWork) {
Async async = new();
async.bgWorker.DoWork += new DoWorkEventHandler(DoWork);
return async;
}
/**
* 进度状态
*/
public Async ProgressChanged(Action<object?, ProgressChangedEventArgs> ProgessChanged)
{
bgWorker.WorkerReportsProgress = true;
bgWorker.ProgressChanged += new ProgressChangedEventHandler(ProgessChanged);
return this;
}
/**
* 结束状态
*/
public Async RunWorkerCompleted(Action<object?, RunWorkerCompletedEventArgs> WorkerCompleted)
{
bgWorker.WorkerSupportsCancellation = true;
bgWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(WorkerCompleted);
return this;
}
/**
* 启动
*/
public BackgroundWorker Start(object? o) {
if (bgWorker.IsBusy)
return bgWorker;
bgWorker.RunWorkerAsync(o);
return bgWorker;
}
}
二、测试
1、不卡死界面测试
private void StartUpdateClick(object sender, RoutedEventArgs e){
bgWorker = Async.DoWork(delegate (object? sender,DoWorkEventArgs e){
for (int i=1;i<=100;i++) {Thread.Sleep(1000);}
}).Start(this);
}
2、更新进度测试
private BackgroundWorker bgWorker;
private void StartClick(object sender, RoutedEventArgs e)
{
bgWorker = Async.DoWork(delegate (object? sender, DoWorkEventArgs e){
for (int i=1;i<=100;i++) {
bgWorker.ReportProgress(i);
}
}).ProgressChanged(delegate (object? sender, ProgressChangedEventArgs e) {
ProgressBarBox.Value = e.ProgressPercentage;
}).RunWorkerCompleted(delegate (object? sender, RunWorkerCompletedEventArgs e) {
if (e.Error != null)
{
MessageBox.Show(e.Error.ToString());
return;
}
if (!e.Cancelled)
{
FinishBox.Visibility = Visibility.Visible;
QuitBox.Visibility = Visibility.Hidden;
}
else
{
MessageBox.Show("处理终止!");
}
}).Start(this);
}
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