如何从 Windows Phone 7 的本地文件系统中选择文件 [英] How do I choose files from the local filesystem in Windows Phone 7

问题描述

我正在尝试选择一些文件上传到 Windows Phone 7(在模拟器中)，任何对 OpenFileDialog 的 ShowDialog 的尝试都会导致安全异常.正在从单击按钮时的事件调用打开文件对话框，但我得到一个

I'm trying to choose some files to upload in Windows Phone 7 (in the emulator), and any attempt to ShowDialog of the OpenFileDialog leads to a Security Exception. The open file dialog is being called from an event on a button click but I get a

SecurityException

[FileDialog_ActiveScripting]
Arguments:
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=3.0.40806.0&File=System.Windows.dll&Key=FileDialog_ActiveScripting

在 Silverlight 版本的 OpenFileDialog.ShowDialog 中查找 SecurityException 指出错误是:

Looking up the SecurityException in the Silverlight version of OpenFileDialog.ShowDialog states that the error is:

Active Scripting in Internet Explorer is disabled.

-or-

The call to the ShowDialog method was not made from user-initiated code.

有人在 Windows Phone 7 中使用过 OpenFileDialog 和 ShowDialog 吗?

Anyone had any luck with the OpenFileDialog and ShowDialog in Windows Phone 7?

推荐答案

我相信您需要使用 Microsoft.Phone.Tasks 命名空间中的类.Windows Phone 7 API 不提供通用文件选择器，而是提供特定任务，例如 CameraCaptureTask 或 PhotoChooserTask.

I believe you need to use classes from the Microsoft.Phone.Tasks namespace. The Windows Phone 7 API's do not give you a generic file picker but rather specific tasks such as CameraCaptureTask or PhotoChooserTask.

参见 MSDN:http://msdn.microsoft.com/en-us/library/microsoft.phone.tasks(VS.92).aspx

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