private void OnGetAllPropertyGroupsOperationCompleted(object arg) {
if ((this.GetAllPropertyGroupsCompleted != null)) {
System.Web.Services.Protocols.InvokeCompletedEventArgs invokeArgs = ((System.Web.Services.Protocols.InvokeCompletedEventArgs)(arg));
this.GetAllPropertyGroupsCompleted(this, new GetAllPropertyGroupsCompletedEventArgs(invokeArgs.Results, invokeArgs.Error, invokeArgs.Cancelled, invokeArgs.UserState));
}
}