Question

我正在尝试删除在独立存储中创建的文件夹。 但我得到错误“路径必须是有效的文件名” 我创建的文件名为“a07292011 // time.Schedule”。

所以现在我要删除文件夹，我的代码是：

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

selectedFolderName1 = a07292011

Answer 1

这是我的代码，用于从隔离存储中递归删除文件夹及其文件/子文件夹。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);
        }
    }

Answer 2

您尝试删除的目录必须为空。

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
}
}

Answer 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
        }
    }

在此处获取更多详情

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

删除Windows Phone 7中的独立存储目录

3 个答案: