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c#exceptionattributesdirectorydelete-file
Ribisl
Ribisl

Reputation: 159

C# Delete a Directory/File and set ReadOnly Attribute

I have following problem, I want to delete a file/directory, but the problem is following: I'm setting the FileAttribute.ReadOnly to false with this code

var di = new DirectoryInfo("FileToDelete");
di.Attributes &= ~FileAttributes.ReadOnly;

Then I'm doing this

File.Delete("FileToDelete")

Then it throws this Exception:

An unhandled exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll

Additional information: The access to the path "FileToDelete" has been denied. //Changed the Path to FileToDelete

Upvotes: 0

Views: 935

Answers (2)

Peuczynski
Peuczynski

Reputation: 4733

What you are doing is you have an expression di.Attributes &= ~FileAttributes.ReadOnly; that is not assigned, used etc. nowhere in the code. Also you are mixing DirectoryInfo and FileAttributes. This is just wrong. What you really want (from the description) is to set file not to be read only and then delete it. So, you have to it like this

File.SetAttributes("FileToDelete", File.GetAttributes("FileToDelete") & ~FileAttributes.ReadOnly);
File.Delete("FileToDelete");

also please note that the exception you're getting can still occur if you will not have sufficient permissions https://msdn.microsoft.com/en-us/library/system.io.file.setattributes%28v=vs.110%29.aspx

as for the directories

new DirectoryInfo("DirectoryToDelete").Attributes &= ~FileAttributes.ReadOnly;

Upvotes: 1

Michael D
Michael D

Reputation: 678

You have to 'apply' the attributes by using:

File.SetAttributes(path, attributes);

Upvotes: 0

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