Question

我试图从URL获取图像并将其存储在我的隔离存储中，然后从隔离存储中获取图像这是我的相关代码：

public void GetImages()
{
    string uri = "http://sherutnetphpapi.cloudapp.net/mini_logos/" + path;
    WebClient m_webClient = new WebClient();
    imageUri = new Uri(uri);   
    m_webClient.OpenReadAsync(imageUri);
    m_webClient.OpenReadCompleted += new OpenReadCompletedEventHandler(webClient_ImageOpenReadCompleted);
    m_webClient.AllowReadStreamBuffering = true;  
}

void webClient_ImageOpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
{
    string iso_path = "~/SherutApp1;component/" + path;
    var isolatedfile = IsolatedStorageFile.GetUserStoreForApplication();
    using (IsolatedStorageFileStream stream = new IsolatedStorageFileStream(iso_path, FileMode.Create, isolatedfile))                                                                    
    {

        byte[] buffer = new byte[e.Result.Length];
        while (e.Result.Read(buffer, 0, buffer.Length) > 0)
        {
            stream.Write(buffer, 0, buffer.Length);
        }
    }
}

我在这一行的标题上得到例外：

using (IsolatedStorageFileStream stream = new IsolatedStorageFileStream(iso_path, FileMode.Create, isolatedfile))

我不知道是什么问题，虽然我认为图像可能无法正确插入隔离存储。

Answer 1

我认为你不需要"~/SherutApp1;component/"部分。如果您的整个路径为"test.jpg"或"folderThatExists\\test.jpg"，则应该有效。

WP7中的IsolatedStorageFileStream上不允许操作

1 个答案: