Saving File on Desktop ? [SOLVED]

Hello everyone,

I'm in trouble with this : I want to create a file where I write something, and save it on Desktop.

I use this code :

Code (csharp):

1.  
2. public void Save() {
3.     DirectoryInfo info = Directory.CreateDirectory (System.Environment.GetFolderPath (System.Environment.SpecialFolder.Desktop) + "\\App");
4.     System.IO.File.WriteAllText(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Desktop)+"\\App", "Test");
5. }
6.  

The first line creates an "App" folder on Desktop. That part works.
The problem is WriteAllText : it always says :
"UnauthorizedAccessException: Access to the path 'C:\Users\Arthur\Documents\App' is denied.

I checked Properties->Security of the folder App, and it is Read-Only. Hence it is created in runtime with code, I don't know how to set on Read/Write.

Or is there a best solution ?

Anything I found on the web didn't work for me, like this :

Code (csharp):

1.  
2. public void Save() {
3.         DirectoryInfo info = Directory.CreateDirectory (System.Environment.GetFolderPath (System.Environment.SpecialFolder.Desktop) + "\\App");
4.         SetAcl (info.FullName);
5.         System.IO.File.WriteAllText(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Desktop)+"\\App", "Test");
6.     }
7.  
8.     bool SetAcl(string path)
9.     {
10.         FileSystemRights Rights = (FileSystemRights)0;
11.         Rights = FileSystemRights.FullControl;
12.  
13.         // *** Add Access Rule to the actual directory itself
14.         FileSystemAccessRule AccessRule = new FileSystemAccessRule("Users", Rights,
15.                                                                    InheritanceFlags.None,
16.                                                                    PropagationFlags.NoPropagateInherit,
17.                                                                    AccessControlType.Allow);
18.  
19.         DirectoryInfo Info = new DirectoryInfo(path);
20.         DirectorySecurity Security = Info.GetAccessControl(AccessControlSections.Access);
21.  
22.         bool Result = false;
23.         Security.ModifyAccessRule(AccessControlModification.Set, AccessRule, out Result);
24.  
25.         if (!Result)
26.             return false;
27.  
28.         // *** Always allow objects to inherit on a directory
29.         InheritanceFlags iFlags = InheritanceFlags.ObjectInherit;
30.         iFlags = InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit;
31.  
32.         // *** Add Access rule for the inheritance
33.         AccessRule = new FileSystemAccessRule("Users", Rights,
34.                                               iFlags,
35.                                               PropagationFlags.InheritOnly,
36.                                               AccessControlType.Allow);
37.         Result = false;
38.         Security.ModifyAccessRule(AccessControlModification.Add, AccessRule, out Result);
39.  
40.         if (!Result)
41.             return false;
42.  
43.         Info.SetAccessControl(Security);
44.  
45.         return true;
46.     }
47.  

This code gives me the following error, in addition to the first I described above :
"Error CS1061 : Type 'System.IO.DirectoryInfo' does not contain a definition for 'GetAccessControl' and no extension method 'GetAccessControl' of type 'System.IO.DirectoryInfo' could be found (are you missing a using directive or an assembly reference ?"
(The same for SetAccessControl)

The link to the Microsoft Developer Network (https://msdn.microsoft.com/en-us/library/8e1fc3b8(v=vs.110).aspx) gave me the idea of including mscorlib.dll to my project, but then more and more errors appeared, so I don't think this was a good idea.

So I'm really stucked, I don't know where to search right now.

Is there anyone here who had the same issue ?

Thanks in advance.

 

Up !
I really need help on this...

 

You need to give WriteAllText a filename to write to. Right now you're just giving it the folder name but no file name, so it's trying to write the text to a file named "App" but it can't because there's already a folder with that name (the one you just created). Try this instead:

Code (csharp):

1. System.IO.File.WriteAllText(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Desktop)+"\\App\\mytextfile.txt", "Test");

 

... I feel really dumb right now. Works like a charm. Thank you very much !

 

I know this topic is very old, but the solution didn't work for me. After knocking myself out, I figured out I need to switch from "\\" to "/".