[UWP]通用Windows平台ZipFile.CreateFromDirectory创建空ZIP文件 [英] [UWP]Universal Windows Platform ZipFile.CreateFromDirectory creates empty ZIP file

问题描述

我在压缩现有目录时遇到问题。当我尝试压缩现有目录时，我总是得到一个空的zip文件。我是基于MSDN的这个例子。调试应用程序时没有例外。我的应用代码：

 private async void PickFolderToCompressButton_Click（object sender，RoutedEventArgs e）
 {
 //清除之前返回的文件夹名称，如果是在这种情况的迭代之间存在
 OutputTextBlock.Text ="" ;; 
 
 FolderPicker folderPicker = new FolderPicker（）; 
 folderPicker.SuggestedStartLocation = PickerLocationId.Desktop; 
 folderPicker.FileTypeFilter.Add（" .dll"）; 
 folderPicker.FileTypeFilter.Add（" .json"）; 
 folderPicker.FileTypeFilter.Add（" .xml"）; 
 folderPicker.FileTypeFilter.Add（" .pdb"）; 
 StorageFolder folder = await folderPicker.PickSingleFolderAsync（）; 
 if（folder！= null）
 {
 //应用程序现在对拾取的文件夹中的所有内容（包括其他子文件夹内容）具有读/写访问权限
 StorageApplicationPermissions。 FutureAccessList.AddOrReplace（" PickedFolderToken"，文件夹）; 
 OutputTextBlock.Text = $" Picked folder：{folder.Name}" ;; 
 
 var files = await folder.GetFilesAsync（）; 
 foreach（文件中的var文件）
 {
 OutputTextBlock.Text + = $" \\\
 {file.Name}" ;; 
} 
 
 await Task.Run（（）=> 
 {
 try 
 {
 ZipFile.CreateFromDirectory（folder.Path， $" {folder.Path} \\ {Guid.NewGuid（）}。zip"，
 CompressionLevel.NoCompression，true）; 
 Debug.WriteLine（" folder zipped"）; 
} 
 catch（例外w）
 {
 Debug.WriteLine（w）; 
} 
}）; 
} 
其他
 {
 OutputTextBlock.Text ="操作已取消。" ;; 
} 
} 

创建一个Zip文件，但它始终为空。源文件夹中有很多文件。

我错了什么？

解决方案

我在压缩现有目录时遇到问题。当我尝试压缩现有目录时，我总是得到一个空的zip文件。我是基于MSDN的这个例子。调试应用程序时没有例外。我的应用代码：

 private async void PickFolderToCompressButton_Click（object sender，RoutedEventArgs e）
 {
 //清除之前返回的文件夹名称，如果是在这种情况的迭代之间存在
 OutputTextBlock.Text ="" ;; 
 
 FolderPicker folderPicker = new FolderPicker（）; 
 folderPicker.SuggestedStartLocation = PickerLocationId.Desktop; 
 folderPicker.FileTypeFilter.Add（" .dll"）; 
 folderPicker.FileTypeFilter.Add（" .json"）; 
 folderPicker.FileTypeFilter.Add（" .xml"）; 
 folderPicker.FileTypeFilter.Add（" .pdb"）; 
 StorageFolder folder = await folderPicker.PickSingleFolderAsync（）; 
 if（folder！= null）
 {
 //应用程序现在对拾取的文件夹中的所有内容（包括其他子文件夹内容）具有读/写访问权限
 StorageApplicationPermissions。 FutureAccessList.AddOrReplace（" PickedFolderToken"，文件夹）; 
 OutputTextBlock.Text = 

" Picked folder：{folder.Name}" ;;

var files = await folder.GetFilesAsync（）;
foreach（文件中的var文件）
{
OutputTextBlock.Text + =

" \\\
{file.Name}" ;;
}

await Task.Run（（）=>
{
try
{
ZipFile.CreateFromDirectory（folder.Path，

I have a problem with zipping existing directories. When I try to compress an existing directory, I always get an empty zip file. I was basing on this example from MSDN. There are no exceptions when debugging the application. My app code:

private async void PickFolderToCompressButton_Click(object sender, RoutedEventArgs e)
{
    // Clear previous returned folder name, if it exists, between iterations of this scenario
    OutputTextBlock.Text = "";

    FolderPicker folderPicker = new FolderPicker();
    folderPicker.SuggestedStartLocation = PickerLocationId.Desktop;
    folderPicker.FileTypeFilter.Add(".dll");
    folderPicker.FileTypeFilter.Add(".json");
    folderPicker.FileTypeFilter.Add(".xml");
    folderPicker.FileTypeFilter.Add(".pdb");
    StorageFolder folder = await folderPicker.PickSingleFolderAsync();
    if (folder != null)
    {
        // Application now has read/write access to all contents in the picked folder (including other sub-folder contents)
        StorageApplicationPermissions.FutureAccessList.AddOrReplace("PickedFolderToken", folder);
        OutputTextBlock.Text = $"Picked folder: {folder.Name}";

        var files  = await folder.GetFilesAsync();
        foreach (var file in files)
        {
            OutputTextBlock.Text += $"\n {file.Name}";
        }

        await Task.Run(() =>
        {
            try
            {
                ZipFile.CreateFromDirectory(folder.Path, $"{folder.Path}\\{Guid.NewGuid()}.zip",
                    CompressionLevel.NoCompression, true);
                Debug.WriteLine("folder zipped");
            }
            catch (Exception w)
            {
                Debug.WriteLine(w);
            }
        });
    }
    else
    {
        OutputTextBlock.Text = "Operation cancelled.";
    }
}

A Zip file is created, but it is always empty. There are many files in the source folder.

What I am making wrong?

解决方案

I have a problem with zipping existing directories. When I try to compress an existing directory, I always get an empty zip file. I was basing on this example from MSDN. There are no exceptions when debugging the application. My app code:

private async void PickFolderToCompressButton_Click(object sender, RoutedEventArgs e)
{
    // Clear previous returned folder name, if it exists, between iterations of this scenario
    OutputTextBlock.Text = "";

    FolderPicker folderPicker = new FolderPicker();
    folderPicker.SuggestedStartLocation = PickerLocationId.Desktop;
    folderPicker.FileTypeFilter.Add(".dll");
    folderPicker.FileTypeFilter.Add(".json");
    folderPicker.FileTypeFilter.Add(".xml");
    folderPicker.FileTypeFilter.Add(".pdb");
    StorageFolder folder = await folderPicker.PickSingleFolderAsync();
    if (folder != null)
    {
        // Application now has read/write access to all contents in the picked folder (including other sub-folder contents)
        StorageApplicationPermissions.FutureAccessList.AddOrReplace("PickedFolderToken", folder);
        OutputTextBlock.Text =

"Picked folder: {folder.Name}"; var files = await folder.GetFilesAsync(); foreach (var file in files) { OutputTextBlock.Text +=

"\n {file.Name}"; } await Task.Run(() => { try { ZipFile.CreateFromDirectory(folder.Path,

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