UnauthorizedAccessException错误

Question

Fellow User, Trying to write to a file - from a console application in Visual C# - using System.IO, when I encountered this error: UnauthorizedAccessException unhandled (which was not present in the courseware I was watching). I am aware that this is quite a simple problem and have looked for the solution on msdn.com yet all I was able to find was that my problem was a security error or System.IO error, nothing about how to fix the problem.

This is the code:

string someText = "I want to write this to a text file!";

File.WriteAllText(@"C:\Users\Keagan\Desktop\
    C#projects\UnderstandingNamespaces", someText);

Regards K.Roe

Answer 1

I have faced exactly the same problem. You have two solution:

First One: Make sure that you have full permission on the folder.

Go to folder -> Right click -> Properties -> Security Tab -> Select user -> Edit -> Allow Full Control.

Second Solution (Most Probably):

string someText = "I want to write this to a text file!";

make sure that you someText variable hold the file name with extension. for exmaple: MyFile.txt or something like that. In addition to that, make sure that you filePath is correct.

I faced the same problem, but I don't know why visual studio throw this strange exception.