Crainiate Community

Hi,

I would like to know how to know if the user of my program has changed anything on the diagram (eg moved, deleted shapes...) since the last Save(): I would like, when closing the app to ask the user if he wants to save the diagram if he made changes since the last time he saved.

Thanks for any help!

Laurian 

Hi,

You can use the ElementInvalid event of the Diagram/Model control to set a flag indicating something has changed. Reset this flag when you call Save.

The only issue with this technique is that the Element::ElementInvalid and Model::ElementInvalid events are raised whenever an element is selected with the cursor.  But I guess it depends on what the developer considers an "edit".

Thanks, that works! :)