Version: (assembly version)
public UpdateUserRequest( String userName )
Name of the user to update. If you're changing the name of the user, this is the original user name.
Supported in: 4.5, 4.0, 3.5
.NET for Windows Store apps:
Supported in: Windows 8.1, Windows 8
.NET for Windows Phone:
Supported in: Windows Phone 8.1