Check if user belongs to given SPGroup or not in SharePoint

Hi All,

The following method to check if user belongs to given group in sharepoint. This is very useful utility function when we work on any sharepoint user management activities.

        public bool IsUserAuthorized(string groupName)
        {
            //Retreiving the current context
            SPSite site = SPContext.Current.Site;

            //Opening a current web and creating a instance
            using (SPWeb web = site.OpenWeb())
            {
                //Retreiving the current logged in user
                SPUser currentUser = web.CurrentUser;

                //Retrieving all the user groups in the site/web
                SPGroupCollection userGroups = currentUser.Groups;

                //Loops through the grops and check if the user is part of given group or not.
                foreach (SPGroup group in userGroups)
                {
                    //Checking the group
                    if (group.Name.Contains(groupName))
                        return true;
                }
            }
            return false;
        }