asp.net web app - check user exist in Active Directory group

Question

I have asp.net web app, how to check the current logged in user (client) is in specific Active directory group. Thanks

Great answer but for future reference received {"Unknown error (0x80005000)"} when implemented. Fixed by adding domain to following line: var pc = new PrincipalContext(ContextType.Domain, Environment.UserDomainName); — Paul Blackwell
– Paul Blackwell, Commented Feb 7, 2013 at 3:29

Leniel Maccaferri · Accepted Answer · 2011-05-30 16:04:37Z

3

Try this the following method. Just change it according to your needs...

public List<string> GetGroupNames(string userName)
{
    var pc = new PrincipalContext(ContextType.Domain);
    var src = UserPrincipal.FindByIdentity(pc, userName).GetGroups(pc);
    var result = new List<string>();
    src.ToList().ForEach(sr => result.Add(sr.SamAccountName));
    return result;
}

answered May 30, 2011 at 16:04

Leniel Maccaferri

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7 Comments

Yogesh Over a year ago

Hi Leniel, Thanks for the quick reply. i just copied your code ran on simple web app. this gave an error - {"Unknown error (0x80005000)"} , am i missing anything ?

Leniel Maccaferri Over a year ago

@Yogesh: check this: lansweeper.com/forum/… This is a pretty broad error. If you search for this Unknown error in Google you'll get a lot of possible problems...

marc_s Over a year ago

This requires .NET 3.5 or higher - doesn't work on 2.0 or 3.0. Also: the user that the web app is running under needs to have permission to at least read the AD.

marc_s Over a year ago

@Yogesh: where (on what line in the code) does this error happen when you debug through??

Yogesh Over a year ago

now I used exisitng group where i am the member and i used this line of code flag = User.IsInRole("ADGroupName"); .... Bingo! and it worked

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Harv · Accepted Answer · 2011-05-30 17:50:41Z

1

Try this (Only works in ASP.NET but similar calls are available for windows apps)

    if (HttpContext.Current.User.IsInRole("RoleName"))
    {
        return true;
    }
    else
    {
        return false;
    }

Hope this helps
Harvey Sather

answered May 30, 2011 at 17:50

Harv

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