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Old January 16th, 2006, 09:13 AM
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Default Add User to group - Active Directory

I wanted to add a user to group .
But its throwing error like “Exception has been thrown by the target of an invocation.”

anybody has any idea why it is?

this is my code

public static void AddUserToGroup()
            string sDomainName =
            ActiveDirectoryAccess objAD = new
            DirectoryEntry de = new

            DirectoryEntry deUser =
            string GroupName = "Now";
            DirectorySearcher deSearch = new
            deSearch.SearchRoot = de;
            deSearch.Filter = "(&(objectClass=group)
(cn=" + GroupName + "))";
            SearchResultCollection results =

            bool isGroupMember = false;
            if (results.Count > 0)
                DirectoryEntry group =

                object members =
group.Invoke("Members", null);
                foreach (object member in
                    DirectoryEntry x = new
                    if (x.Name != deUser.Name)
                        isGroupMember = false;
                        isGroupMember = true;

                if (!isGroupMember)
                    group.Invoke("Add", new object[] {
deUser.Path.ToString() });




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