Entity Framework: Undo Redo v2

re: Entity Framework: Undo Redo v2

wiktor256 — Sat, 14 Nov 2009 04:41:50 GMT

Hi,

I've been trying to get it to work, and I am getting closer, but it's not pretty. I have to resort to using reflection to access unexposed .NET methods and properties. I know, that's bad, but I want to see if it is possible to make it work. The main reason for using the reflection is that there doesn't seem to be a way to undelete an entity. After poking through .NET code, I found that ObjectStateEntry.RevertDelete() does the trick.

re: Entity Framework: Undo Redo v2

Matthieu MEZIL — Thu, 12 Nov 2009 13:43:47 GMT

In RelatedEnd class, you have an AssociationChanged event so I think that you can use it to extend my code.

re: Entity Framework: Undo Redo v2

wiktor256 — Thu, 12 Nov 2009 01:39:20 GMT

I see that this approach works for undo/redo of simple property changes. Am I missing something?

Is there a way to also undo/redo changes in relationships between entities? For example, when a new Order is added to the Customer->Orders collection?

re: Entity Framework: Undo Redo v2

Matthieu MEZIL — Sun, 08 Nov 2009 15:54:13 GMT

It's just a POC guys.

So it's possible that there is some bugs. Sorry for it but I am too busy to fix them.

Matthieu

re: Entity Framework: Undo Redo v2

wiktor256 — Thu, 05 Nov 2009 15:37:07 GMT

Great code. I use it to undo all changes when the user clicks on a "Cancel" button.

I think I stumbled on a small bug though. The undo list becomes empty after doing group undo. Then making a change to an entity causes an IndexOfOutOfBounds exception to be thrown in the line below.

if (MultipleActions)

_undo[0].Add(undoRedoAction);

re: Entity Framework: Undo Redo v2

Ivan — Wed, 28 Oct 2009 10:04:21 GMT

This doesn't work. I tested it in my application and doesn't work.

re: Entity Framework: Undo Redo v2

Matthieu MEZIL — Fri, 10 Jul 2009 01:00:51 GMT

nowhere. All the code is here.

re: Entity Framework: Undo Redo v2

Vikas — Thu, 09 Jul 2009 16:08:23 GMT

Fro where download this framework