创建新目录将返回错误：“ System.UnauthorizedAccessException：'对路径'C：\\ Users'的访问被拒绝。

Question

I'm making a small UWP program which will have a config.xml file. I want this one to be saved in the "My Games\\My application\\" folder.

This is the code I use :

string folder = "C:\\Users\\admin\\Documents\\My Games\\MyAppFolder";
Directory.CreateDirectory(folder);

When running the program, the second line gives this error :

"System.UnauthorizedAccessException : 'Access to the path 'C:\\Users' is denied.'".

I tried with

string folder = System.Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments) + "\\My Games\\MyAppFolder"

and

string folder = "C:\\Users\\admin\\Documents\\MyAppFolder";

and got the same issue.

However, I tried with a C# winforms application where I didn't have any issue : there, the same code works perfectly, the new folder is created.

Thanks for help!

Answer 1

Creating new directory returns error :"System.UnauthorizedAccessException : 'Access to the path 'C:\\Users' is denied.'

UWP is running on sandbox, you could not use System.IO api( Directory.CreateDirectory ) to access folder path directly, and you need use Windows Storage api to access the specific folder. For access such path C:\\\\Users\\\\admin\\\\Documents\\\\MyAppFolder , you also add broadFileSystemAccess capability and open this permission in the file setting. For more please refer this case reply

<Package
  ...
  xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities"
  IgnorableNamespaces="uap mp uap5 rescap">
...
<Capabilities>
    <rescap:Capability Name="broadFileSystemAccess" />
</Capabilities>