2011-07-28 99 views
0

我正在尝试删除在独立存储中创建的文件夹。 但我得到的错误“路径必须是有效的文件名” 我创建的文件名是“a07292011 // time.Schedule”在windows phone 7中删除独立的存储目录

所以现在我要删除的文件夹,我的代码是:

myStore.DeleteDirectory(selectedFolderName1 + “\\”);

其中selectedFolderName1 = a07292011

+2

我希望,不需要追加(+“\\”)目录名称。因为你要删除文件夹本身。 –

回答

3
/// <summary> 
    /// Method for deleting an isolated storage directory 
    /// </summary> 
    /// <param name="directoryName">Name of a directory to be deleted</param> 
    public static void DeleteDirectory(string directoryName) 
    { 
     try 
     { 
      using (IsolatedStorageFile currentIsolatedStorage = IsolatedStorageFile.GetUserStoreForApplication()) 
      { 
       if (!string.IsNullOrEmpty(directoryName) && currentIsolatedStorage.DirectoryExists(directoryName)) 
       { 
        currentIsolatedStorage.DeleteDirectory(directoryName); 
       } 
      } 
     } 
     catch (Exception ex) 
     { 
      // do something with exception 
     } 
    } 

获得更多的细节在这里

http://www.eugenedotnet.com/2010/11/isolated-storage-for-windows-phone-7/

+0

试过了。我有访问隔离存储的错误 –

+0

是否currentIsolatedStorage.DirectoryExists(directoryName)返回true? –

+3

http://msdn.microsoft.com/en-us/library/system.io.isolatedstorage.isolatedstoragefile.deletedirectory.aspx检查该URL。 **目录在被删除之前必须是空的。删除的目录无法恢复,一旦删除。** –

4

试图删除必须为空目录。

public void DeleteDirectory(string directoryName) { 
try { 
    using (IsolatedStorageFile isoFile = IsolatedStorageFile.GetUserStoreForApplication()) { 
     if (!string.IsNullOrEmpty(directoryName) && currentIsolatedStorage.DirectoryExists(directoryName)) { 
      var fn = isoFile.GetFileNames(string.Concat(directoryName, "\\*")); 
      if (fn.Length > 0) 
       for (int i = 0; i < fn.Length; ++i) 
        isoFile.DeleteFile(string.Concat(directoryName, "\\", fn[i])); 
      isoFile.DeleteDirectory(directoryName); 
     } 
    } 
} catch (Exception ex) { 
    //implement some error handling 
} 
} 
5

这里是我的代码递归删除文件夹和他们的文件/子文件夹从孤立的存储。它也适用于Windows Phone 8。

public static void CleanAndDeleteDirectoryRecursive(string directory) 
    { 
     IsolatedStorageFile iso = IsolatedStorageFile.GetUserStoreForApplication(); 
     if (iso.DirectoryExists(directory)) 
     { 
      string[] files = iso.GetFileNames(directory + @"/*"); 
      foreach (string file in files) 
      { 
       iso.DeleteFile(directory + @"/" + file); 
       Debug.WriteLine("Deleted file: " + directory + @"/" + file); 
      } 

      string[] subDirectories = iso.GetDirectoryNames(directory + @"/*"); 
      foreach (string subDirectory in subDirectories) 
      { 
       CleanAndDeleteDirectoryRecursive(directory + @"/" + subDirectory); 
      } 

      iso.DeleteDirectory(directory); 
      Debug.WriteLine("Deleted directory: " + directory); 
     } 
    } 
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