How to add a user account to a group (member of)

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I want to add a windows account user to a group
I use this method:

C#

public bool AddUserToGroup(PrincipalContext ctx, string userId, string groupName)
{
     try
    {

          GroupPrincipal group = GroupPrincipal.FindByIdentity(ctx, groupName);
          group.Members.Add(ctx, IdentityType.UserPrincipalName, userId);
          group.Save();
          return true;
    }
    catch
    {
         return false;
    }
}

when I use this method with the following PrincipalContext
new PrincipalContext(ContextType.Domain, "Lab.net");
It work Fine.

but when i use PrincipalContext with username and password it have exception

C#

new PrincipalContext(ContextType.Domain, "Lab.net","administrator","P@ssw0rd");

the exception is:

System.DirectoryServices.AccountManagement.PrincipalOperationException: Information about the domain could not be retrieved (1355).
   at System.DirectoryServices.AccountManagement.Utils.GetDcName(String computerName, String domainName, String siteName, Int32 flags)
   at System.DirectoryServices.AccountManagement.ADStoreCtx.LoadDomainInfo()
   at System.DirectoryServices.AccountManagement.ADStoreCtx.get_DnsForestName()
   at System.DirectoryServices.AccountManagement.ADUtils.ArePrincipalsInSameForest(Principal p1, Principal p2)
   at System.DirectoryServices.AccountManagement.ADStoreCtx.UpdateGroupMembership(Principal group, DirectoryEntry de, NetCred credentials, AuthenticationTypes authTypes)
   at System.DirectoryServices.AccountManagement.SDSUtils.ApplyChangesToDirectory(Principal p, StoreCtx storeCtx, GroupMembershipUpdater updateGroupMembership, NetCred credentials, AuthenticationTypes authTypes)
   at System.DirectoryServices.AccountManagement.ADStoreCtx.Update(Principal p)
   at System.DirectoryServices.AccountManagement.Principal.Save()

I Can create user with this PrincipalContext but i cant join a user to a group

What I have tried:

How to add a user account to a group (member of)

Posted 16-Jan-19 0:29am

milad.z

Updated 31-Jan-19 4:06am

Maciej Los

v2

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Dylvh · Accepted Answer · 2019-01-16T01:34:00

Solution 1

Have a look at the How to almost everything in active directory article. It helped me when I needed to work with the active directory.

Posted 16-Jan-19 1:34am

Dylvh

Comments

Maciej Los 16-Jan-19 7:49am

5ed!

Dylvh 18-Jan-19 1:34am

Thank you

milad.z · Accepted Answer · 2019-01-31T04:07:00

I change my method
It work

public bool AddUserToGroup(PrincipalContext ctx, DirectoryEntry userId, string groupName)
        {
            try
            {
                GroupPrincipal groupPrincipal = GroupPrincipal.FindByIdentity(ctx, groupName);
                if (groupPrincipal != null) {
                    DirectoryEntry entry = (DirectoryEntry)groupPrincipal.GetUnderlyingObject();
                    entry.Invoke("Add", new object[] { userId.Path.ToString() });
                    userId.CommitChanges();
                }
                else {
                    return true;
                }
                
                return true;
            }
            catch
            {
                return false;
            }
        }