[英]C# : How to report progress while creating a zip file?
Update: Got it working updated my working code 更新:工作正常更新了我的工作代码
Here is what I have so far 这是我到目前为止的
private async void ZipIt(string src, string dest)
{
await Task.Run(() =>
{
using (var zipFile = new ZipFile())
{
// add content to zip here
zipFile.AddDirectory(src);
zipFile.SaveProgress +=
(o, args) =>
{
var percentage = (int)(1.0d / args.TotalBytesToTransfer * args.BytesTransferred * 100.0d);
// report your progress
pbCurrentFile.Dispatcher.Invoke(
System.Windows.Threading.DispatcherPriority.Normal,
new Action(
delegate()
{
pbCurrentFile.Value = percentage;
}
));
};
zipFile.Save(dest);
}
});
}
I need to figure out how to update my progress bar but not sure if I am on the right track I have searched around and found many examples for windows forms and vb.net but nothing for wpf c# was wondering if anyone could help. 我需要弄清楚如何更新进度条,但是不确定我是否走在正确的轨道上,发现了许多关于Windows窗体和vb.net的示例,但对于wpf c#却一无所知。
I guess you are using DotNetZip ? 我猜您在使用DotNetZip吗?
There are numerous issue in the code you've shown: 您显示的代码中存在很多问题:
DoWork
so how do you expect to get the progress ? DoWork
调用ReportProgress ,那么您如何期望获得进度? zip.Save()
you wouldn't get a progress (beside 100%) because it would not return unless it is finished. zip.Save()
您将无法获得进度(100%旁),因为除非完成,否则进度不会返回。 Solution 解
Use tasks and SaveProgress
event instead : 使用任务和
SaveProgress
事件代替:
private async void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
await Task.Run(() =>
{
using (var zipFile = new ZipFile())
{
// add content to zip here
zipFile.SaveProgress +=
(o, args) =>
{
var percentage = (int) (1.0d/args.TotalBytesToTransfer*args.BytesTransferred*100.0d);
// report your progress
};
zipFile.Save();
}
});
}
Doing this way, your UI will not freeze and you will get a periodic report of the progress. 这样,您的用户界面将不会冻结,并且您将获得进度的定期报告。
Always prefer Tasks over BackgroundWorker
since it's official approach to use now. 始终优先使用Tasks而不是
BackgroundWorker
因为它是现在可以使用的官方方法。
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