C# Active directory Principal display name is null

Question

I am trying to display full name of user from active directory. It works fine on my local. But when I publish this code to IIS on server it shows display name as null. What may be the issue? My account is using windows authentication.

using (var context = new PrincipalContext(ContextType.Domain))
            {
                var principal = UserPrincipal.FindByIdentity(context, User.Identity.Name);
                var displayName = principal?.DisplayName; 
}

score 1 · Answer 1 · answered Feb 01 '17 at 10:20

1

I had to use HostingEnvironment.Impersonate() in order to access my AD properties on my IIS server. (It worked without it on local)

using (HostingEnvironment.Impersonate())
{
  // your code
}

Also, you'd have to change your Application Pool's identity from "AppPoolIdentity" to "NetworkService".

answered Feb 01 '17 at 10:20

Thomas Sauvajon

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This throws error Login failed for user 'DomainName\MachineName$'. – Kurkula Feb 01 '17 at 18:54
It's probably a permission issue. Check [this](http://stackoverflow.com/a/2806582/7046455) – Thomas Sauvajon Feb 02 '17 at 14:05

C# Active directory Principal display name is null

1 Answers1