C＃访问在microSD中创建/写入文件 [英] C# access creating/writing files in microSD

问题描述

我有Windows 10 iot的raspberry pi 2。我想用c＃应用程序在microSD卡中创建目录/文件。我该怎么做？

当我尝试这样做时，我收到错误：

Hi, I have raspberry pi 2 with Windows 10 iot. I want to create directories/files in microSD card using c# application. How do I do that?
When I try to do that I get error:

"访问路径"C：\ poo.ini"被拒绝。"

我尝试执行：  icacls" c：\ work" /授予每个人：F

但这不起作用。



任何想法？

I tried execute: icacls "c:\work" /grant Everyone:F
but that doesnt work.

Any ideas?

I
有一个巨大的32GB microSD卡有22GB免费分区（E :)，我无法访问它？ 如何访问卷E：？ KnownFolders
是否包含E：分区？

有没有黑客解决方案？

推荐答案

UWP应用程序无法访问更广泛的文件系统。尝试使用KnownFolders访问文件。 '可移动存储'/可移动设备'是USB数据存储的代码和权限所需的。

It is not possible from a UWP app to access the wider filing system. Try using the KnownFolders to access files. 'Removable Storage'/Removable Devices' is what you need for code and permissions for USB data storage.

C：\ ...仅通过KnownFolders

C:\... is only via KnownFolders

19。在C＃中打开一个文件以进行读/写操作。

19. Open a file in C# for access to read/write it

    // create a file with the given filename in the local folder; replace any existing file with the same name
    StorageFile file = await Windows.Storage.ApplicationData.Current.LocalFolder.CreateFileAsync(filename, CreationCollisionOption.ReplaceExisting);

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