Get Windows user C#

Question

I have a WPF application that needs to get the Windows username of the user. I am using the following line of code:

MessageBox.Show("Your username is:\n" + WindowsIdentity.GetCurrent().Name);

This works fine on my computer and computers of our other developers, but for others, it crashes. I'm assuming this is a permissions issue. Here is the error:

Problem signature:
Problem Event Name: CLR20r3
Problem Signature 01: notesformultipleproperties.exe
Problem Signature 02: 1.0.0.0
Problem Signature 03: 51cb04a1
Problem Signature 04: PresentationFramework
Problem Signature 05: 4.0.0.0
Problem Signature 06: 504dc7da
Problem Signature 07: 7b4d
Problem Signature 08: 0
Problem Signature 09: System.Windows.Markup.XamlParse
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1033
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

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Can I allow this line of code to run no matter what permissions the user has?

Do you just need the user name alone, or will you also need domain information? `Environment.UserName` will _not_ provide the domain, while your current method will. — DonBoitnott, Jun 26 '13 at 16:44

score 3 · Accepted Answer · answered Jun 26 '13 at 16:41

3

How about Environment.UserName? It will return "the user name the current process is running under".

answered Jun 26 '13 at 16:41

antonijn

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score 2 · Answer 2 · answered Jun 26 '13 at 16:41

2

You can use Environment.UserName instead of getting the WindowsIdentity. This requires fewer permissions, and will likely work without the elevated permissions you're currently requiring.

answered Jun 26 '13 at 16:41

Reed Copsey

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score 2 · Answer 3 · edited May 23 '17 at 12:10

2

This question has an accepted answer: How do I get the logged in user's window's credentials in a WPF application

Environment.UserName

edited May 23 '17 at 12:10

Community

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answered Jun 26 '13 at 16:42

Sven Grosen

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Then why post another one? – Clemens Jun 26 '13 at 16:45
Because I didn't have enough reputation at the time to mark as a duplicate or comment on the original post :) – Sven Grosen Jun 26 '13 at 16:48
nevertheless, this is not an answer. flagged. – tckmn Jun 26 '13 at 17:00
How is it not an answer? It provides the same answer as the other two answers (including the accepted one)? I just acknowledge the existence of another question with the same answer. – Sven Grosen Jun 26 '13 at 17:02
They're right. You should have left it in the comments of the original question. – Milne Jun 26 '13 at 17:05
As I mentioned originally, I didn't have enough reputation to do so when I posted this answer. If I did have the reputation at the time, I certainly would have done that. Ironically, this answer has bumped me over 50 reputation so now I can. – Sven Grosen Jun 26 '13 at 17:09

Get Windows user C#

3 Answers3