wpf C#：如何在创建 zip 文件时报告进度？
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C# : How to report progress while creating a zip file?
提问by ondrovic
Update: Got it working updated my working code
更新：让它工作更新了我的工作代码
Here is what I have so far
这是我到目前为止所拥有的
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我的进度条，但不确定我是否在正确的轨道上我已经四处搜索并找到了许多关于 windows 窗体和 vb.net 的示例，但没有关于 wpf c# 想知道是否有人可以提供帮助。
回答by Aybe
I guess you are using DotNetZip ?
我猜你正在使用 DotNetZip ？
There are numerous issue in the code you've shown:
您显示的代码中有很多问题：
- you don't call ReportProgressin
DoWorkso how do you expect to get the progress ? - even if you did so the problem is with
zip.Save()you wouldn't get a progress (beside 100%) because it would not return unless it is finished.
- 你不叫ReportProgress在
DoWork你怎么这么希望得到的进展如何？ - 即使你这样做了，问题是
zip.Save()你不会得到进展（除了 100%），因为除非它完成，否则它不会返回。
Solution
解决方案
Use tasks and SaveProgressevent instead :
改用任务和SaveProgress事件：
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.
这样做，您的 UI 不会冻结，您将定期获得进度报告。
Always prefer Tasks over BackgroundWorkersince it's officialapproach to use now.
总是更喜欢 Tasks，BackgroundWorker因为它是现在使用的官方方法。
