问题
My application is raising an unauthorized access error. While running my application, I try to access a directory in the following location: Application.UserAppDataPath.
The Problem: It says I do not have permission to access the Application.UserAppDataPath directory
Is there a way to set permissions within my application source code?
Something like:
Application.UserAppDataPath.SetPermissions()
回答1:
Looking at your comment, you say this is your code:
StreamReader sr = new StreamReader(Application.UserAppDataPath);
Application.UserAppDataPath is a directory, not a file. If you try to open that directly, it's the same as trying to open a file one level below the AppData folder, which you really don't have permission to do.
Use Path.Combine to construct a path to a file inside the AppData folder, i.e.
string fileName = Path.Combine(Application.UserAppDataPath, "settings.xml");
StreamReader sr = new StreamReader(fileName);
Of course this is just an example - in reality you should probably be using a sub-folder inside AppData specific to your application.
回答2:
Its probably a UAC issue, Try running your application as an elevated process, and see if the error persists
来源：https://stackoverflow.com/questions/2376430/question-using-windows-7-unauthorized-access-exception-when-running-my-applica