如何使用WinRT获取文件? [英] How to get a file using WinRT?

问题描述

我想要的是
从AppData获取要使用的xml

What I want:
get a xml from the AppData to use

我编写的代码

   StorageFolder localFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
   StorageFile sampleFile = localFolder.GetFileAsync("abc.xml");

我能得到的
错误:无法将类型"Windows.Foundation.IAsyncOperation"隐式转换为"Windows.Storage.StorageFile"

What I get
Error: Cannot implicitly convert type 'Windows.Foundation.IAsyncOperation' to 'Windows.Storage.StorageFile'

我要检查的内容

此方法成功完成后，将返回一个 StorageFile 代表文件.

When this method completes successfully, it returns a StorageFile that represents the file.

从MSDN

我有什么
Windows 8 Release Preview 64位；
Windows 8的Visual Studio Express 2012 RC;
C#

What I have
Windows 8 Release Preview 64bit;
Visual Studio Express 2012 RC for Windows 8;
C#

我根据MSDN文档编写代码，为什么会发生此错误以及如何解决该错误?

I write the code according to the MSDN doc, Why does this error happen and how to resolve it?

推荐答案

如果您使用的是C#，请尝试使用"StorageFile sampleFile = await localFolder.GetFileAsync("abc.xml")"；如果使用的是JS，请尝试使用"localFolder.GetFileAsnc("abc.xml").done(function (sampleFile) {})".

Try using "StorageFile sampleFile = await localFolder.GetFileAsync("abc.xml")" if you're in C# or "localFolder.GetFileAsnc("abc.xml").done(function (sampleFile) {})" if you're using JS.

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