/// <summary>
        /// Search for a user
        /// </summary>
        /// <param name="oHostSecurityToken">HostSecurityToken obtained when security provider of IWS is called</param>
        /// <param name="collectionRequest"></param>
        /// <param name="criteria"></param>
        /// <returns></returns>
        public UserSearchReturnValue UserSearch(HostSecurityToken oHostSecurityToken, CollectionRequest collectionRequest,
                                                UserSearchCriteria criteria)
        {
            UserSearchReturnValue returnValue = null;

            if (Functions.ValidateIWSToken(oHostSecurityToken))
            {
                oUtilitiesService = new UtilitiesService();
                returnValue       = oUtilitiesService.UserSearch(Functions.GetLogonIdFromToken(oHostSecurityToken), collectionRequest, criteria);
            }
            else
            {
                returnValue         = new UserSearchReturnValue();
                returnValue.Success = false;
                returnValue.Message = "Invalid Token";
            }
            return(returnValue);
        }
 /// <summary>
 /// Search for a user
 /// </summary>
 /// <param name="oHostSecurityToken">HostSecurityToken obtained when security provider of IWS is called</param>
 /// <param name="collectionRequest"></param>
 /// <param name="criteria"></param>
 /// <returns></returns>
 public UserSearchReturnValue UserSearch(HostSecurityToken oHostSecurityToken, CollectionRequest collectionRequest,
     UserSearchCriteria criteria)
 {
     UserSearchReturnValue returnValue = null;
     if (Functions.ValidateIWSToken(oHostSecurityToken))
     {
         oUtilitiesService = new UtilitiesService();
         returnValue = oUtilitiesService.UserSearch(Functions.GetLogonIdFromToken(oHostSecurityToken), collectionRequest, criteria);
     }
     else
     {
         returnValue = new UserSearchReturnValue();
         returnValue.Success = false;
         returnValue.Message = "Invalid Token";
     }
     return returnValue;
 }