nHydrate.Dsl.nHydrateDiagram.CanUndoRedoCallback C# (CSharp) Method

        private bool CanUndoRedoCallback(bool isUndo, Microsoft.VisualStudio.Modeling.TransactionItem transactionItem)
        {
            //This callback will catch the UNDO events and if the UNDO was a factor 
            //then remove it from the refactor collection that is used later for SQL emits
            var model = this.Diagram.ModelElement as nHydrateModel;
            var refactor = model.Refactorizations.FirstOrDefault(x => x.Id == transactionItem.Id);
            if (refactor != null) model.Refactorizations.Remove(refactor);
            return true;
        }