在Silverlight中创建zip [英] Create zip in silverlight

问题描述

嗨！

我已经编写了一个简单的程序来在Silverlight中创建zip文件，并且在将zip文件保存在本地磁盘上时遇到了问题.每次尝试执行此操作时，我都会收到错误消息不允许进行文件操作.拒绝访问路径("path ..."))是否有任何方法可以在没有IsolatedStorageFile的情况下进行?我尝试将zip文件保存在我的项目文件夹中，但没有帮助.

Hi !

I''ve to write a simply program to create zip file in silverlight and I''ve problem with saving my zip file on local disk. Every time I try to do that I receive error "File operation not permitted. Access to path ("path...") is denied" Is there any way to do that without IsolatedStorageFile ? I try to save zip file in my project folder but it didn''t help.

推荐答案

您可以从常规的浏览器内置Silverlight应用访问本地文件系统，但只能通过另存为"对话框(请参见 ^ ])，并且此对话框必须是用户启动的(例如在按钮单击处理程序上).

例如:

You can access the local file system from a regular in-browser Silverlight app, but only through a "Save as" dialog (see SaveFileDialog Class[^]), and this dialog must be user-initiated (like on a button click handler).

For example:

private void saveButton_Click(object sender, RoutedEventArgs e)
{
    SaveFileDialog sfdlg = new SaveFileDialog();
    sfdlg.Filter = "ZIP Files (*.zip)|*.zip";
    if (true == sfdlg.ShowDialog())
    {
        using (Stream fs = sfdlg.OpenFile())
        {
            // use the stream "fs"
        }
    }
}

除非将其配置为在浏览器外运行，否则无法从Silverlight应用程序访问客户端文件系统.即使这样，您也只能访问在客户端系统上创建的特殊文件夹.这是安全的事情.

You cannot access the client side file system from a Silverlight app unless it''s configured to run out-of-browser. Even then, you can only access a special folder created on the client system. It''s a security thing.

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