How to get all the AD groups for a particular user?

Question

I checked this post already. But it doesn\'t answer my question. I want to get all the active directory groups in which a particular user is a member.

I\'ve written

Answer 1

Just query the "memberOf" property and iterate though the return, example:

            search.PropertiesToLoad.Add("memberOf");
            StringBuilder groupNames = new StringBuilder(); //stuff them in | delimited

                SearchResult result = search.FindOne();
                int propertyCount = result.Properties["memberOf"].Count;
                String dn;
                int equalsIndex, commaIndex;

                for (int propertyCounter = 0; propertyCounter < propertyCount;
                    propertyCounter++)
                {
                    dn = (String)result.Properties["memberOf"][propertyCounter];

                    equalsIndex = dn.IndexOf("=", 1);
                    commaIndex = dn.IndexOf(",", 1);
                    if (-1 == equalsIndex)
                    {
                        return null;
                    }
                    groupNames.Append(dn.Substring((equalsIndex + 1),
                                (commaIndex - equalsIndex) - 1));
                    groupNames.Append("|");
                }

            return groupNames.ToString();

This just stuffs the group names into the groupNames string, pipe delimited, but when you spin through you can do whatever you want with them