Undo Event

[Moustafa_K]

Hi!

Is there any method to capture the undo event? or any other for triggering a method on undo?

Why? the story is like this:

i have created an Addin with a button, this button is changeable ie. if preseed { change the image, text of the button} if pressed again{revert the old image,Text back}

however, when you trigger and make the idlying issue Activated and you Hit (Ctrl+Z) for undo the button is not reverted. ofcourse it will not because there is nothing call it to do so.

so is there a way for that

[arnostlobel · Accepted solution]

Hello mostafa90:

A simple answer (without referring to your concrete implementation) is yes – there is an event for Undo and Redo operations. It is the same event like the one for document changes – DocumentChanged. The “Operation” property on the event’s argument will tell you whether the change was caused by an undo or something else.

Thank you

Arnošt Löbel

Autodesk, Revit R&D

[Moustafa_K · Accepted solution]

thanks aarnostobel,
although as you said not hitting my concrete implementation, i was missunderstanding the ctrl+z vs ideling.

the idling once started by button it will not get back to the previous process unless it was ordered to do so. and this can also be done via DocumentChanged Event.

thanks for lighting me up.
Problem solved.