Detect if project has been purged

[Anonymous]

Hello dear friends,

I develop a plugin in c# for Revit and i need to know if a revit project has been purged before doing my work.

My problem is to know, if there is a way to detect by code if any Revit project has been purged?

Have a nice day.

Thanks for your different answers.

[dante.van.wettum]

If there is certain elements that you need in order for your addin to work, wouldnt it be better to just check for those elements?

I dont think there is any way to check by code if there has been a purge in the model.

[cwaluga]

You could get a list of symbol ids that are available and then remove those that have instances in use. If you end up with an empty list, your document has probably been purged.