使用窗口的某些文件擴展名的所有路徑8店/ Metro應用

Question

的問題

我想獲得的所有文件的路徑爲「定製」的文件擴展名（.pssm和.pnsm）從一個文件夾及其所有子文件夾（深度搜索）在WINDOWS 8 STORE（平板電腦）應用程序中。

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步驟

1. 選擇一個父文件夾具有FolderPicker，並保存文件夾路徑字符串

   private async void BrowseButton_Tapped(object sender, TappedRoutedEventArgs e) 
   { 
       FolderPicker fPicker = new FolderPicker(); 
   
       fPicker.SuggestedStartLocation = PickerLocationId.DocumentsLibrary; 
       fPicker.FileTypeFilter.Add(".pnsm"); 
       fPicker.FileTypeFilter.Add(".pssm"); 
   
       StorageFolder sFolder = await fPicker.PickSingleFolderAsync(); 
   
       if (sFolder != null) 
       { 
        StorageApplicationPermissions.FutureAccessList.AddOrReplace("PickedFolderToken", sFolder); 
        (DataContext as MainPageVM).ParentFolder = sFolder.Path; 
       } 
   } 
   

2. 搜索所有的文件，該文件擴展名或者.pssm或在先前保存的文件夾路徑字符串及其子文件夾下的.pnsm。

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問題

如何執行步驟＃2？

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額外的細節

這是我要做的事在我的桌面應用程序的版本（桌面應用程序的XAML，而不是Windows 8的），也許可以作爲參考（我不知道如何適應它贏得8應用程序）。

private async void ButtonRefresh_Click(object sender, RoutedEventArgs e) 
    { 
     //http://www.codeproject.com/Messages/4762973/Nice-article-and-here-is-Csharp-version-of-code-fr.aspx 

     counter = 0; 
     string s = (DataContext as MainWindowVM).ParentFolder; 
     List<string> exts = (DataContext as MainWindowVM).ExtensionToSearch; 

     Action<int> progressTarget = new Action<int>(ReportProgress); 
     searchProgress = new Progress<int>(progressTarget); 

     List<string> queriedPaths = 
      await Task.Run<List<string>>(() => GetAllAccessibleFiles(s, exts, searchProgress)); 

     (DataContext as MainWindowVM).RefreshList(queriedPaths); 
     SaveSearch(); 

     progressText.Text += "(Search Completed)"; 
    } 

    private List<string> GetAllAccessibleFiles(
       string rootPath, List<string> exts, IProgress<int> searchProgress, List<string> alreadyFound = null) 
    { 
     if (alreadyFound == null) 
     { 
      alreadyFound = new List<string>(); 
     } 

     if (searchProgress != null) 
     { 
      counter++; 
      searchProgress.Report(counter); 
     } 

     DirectoryInfo dI = new DirectoryInfo(rootPath); 
     var dirs = dI.EnumerateDirectories().ToList(); 

     foreach (DirectoryInfo dir in dirs) 
     { 
      if (!((dir.Attributes & FileAttributes.Hidden) == FileAttributes.Hidden)) 
      { 
       alreadyFound = GetAllAccessibleFiles(dir.FullName, exts, searchProgress, alreadyFound); 
      } 
     } 

     var files = Directory.GetFiles(rootPath); 

     foreach (string file in files) 
     { 
      if (exts.Any(x => file.EndsWith(x))) 
      { 
       alreadyFound.Add(file); 
      } 
     } 

     return alreadyFound; 
    } 

Answer 1

看來我只是有點接近答案。我不知道爲什麼我沒有跨過我的腦海。所以，這裏是我的RefreshButton_Tapped的更新來獲取所有路徑。

private async void RefreshButton_Tapped(object sender, TappedRoutedEventArgs e) 
    { 
     StorageFolder sFolder = 
      await StorageFolder.GetFolderFromPathAsync((DataContext as MainPageVM).ParentFolder); 

     List<string> fileTypeFilter = new List<string>(); 
     fileTypeFilter.Add(".pnsm"); 
     fileTypeFilter.Add(".pssm"); 

     QueryOptions queryOptions = 
      new QueryOptions(CommonFileQuery.OrderByName, fileTypeFilter); 

     StorageFileQueryResult results = sFolder.CreateFileQueryWithOptions(queryOptions); 

     var files = await results.GetFilesAsync(); 

     List<string> paths = files.Select(x => x.Path.ToString()).ToList(); 

     SaveSearch(); 
    } 

如果有人有更好的答案，隨時可以。