Dynamic model update - how to AddTrigger for worksets (not elements)

[boostyourbim]

Hi,

I'd like to invoke an updater when worksets are created. But all overloads for UpdaterRegistry.AddTrigger require an ElementFilter, not a WorksetFilter. 

Any ideas how this can be done?

Thanks

Harry

[FAIR59]

As you say worksets aren't Elements, so an Updater won't work.  But when the user changes/adds/deletes worksets, Revit records a transaction named "Worksets".  So if you subscribe to the documentchanged event, you can test for the transaction name.

        void ControlledApplication_DocumentChanged(object sender, Autodesk.Revit.DB.Events.DocumentChangedEventArgs e)
        {
            if (e.GetTransactionNames().Contains("Worksets"))
            {
                // Check  document.GetWorksetTable() for new worksets
            }
        }

If you expect other Addin's to create worksets, then this will not work. (the transaction will have another name). In that case your only option is to use a timer to check periodically  for new worksets

[boostyourbim]

Thanks, but the document is in a read-only state during DocumentChanged so that doesn't help in this case.

[FAIR59]

Instead of doing something in the DocumentChanged method, you can launch an External Event and do your checks there.

[matthew_taylor]

Hi @boostyourbim,

If you're trying to enforce something (such as a naming standard), then you may able to use a custom FailureDefinition and a custom failure handler.

Can you say exactly what you're trying to do? It may sprout ideas.