public static void GetPhoneNumberByGuid(Guid guid, HttpRequest.RequestResult <Rock.Client.PhoneNumber> resultHandler) { string oDataFilter = string.Format("?$filter=Guid eq guid'{0}'", guid.ToString( )); RockApi.Get_PhoneNumbers <List <Rock.Client.PhoneNumber> >(oDataFilter, delegate(HttpStatusCode statusCode, string statusDescription, List <Rock.Client.PhoneNumber> model) { Rock.Client.PhoneNumber returnPhoneNumber = null; if (Rock.Mobile.Network.Util.StatusInSuccessRange(statusCode) == true && model != null && model.Count > 0) { returnPhoneNumber = model[0]; } resultHandler(statusCode, statusDescription, returnPhoneNumber); }); }