I have created some code to disallow deletion of a Content Item if that item has any localized Dependencies. To do this I created a new "extension" interface and (default)class within Orchard.Framework.ContentManagement, and then created a new class
within the Orchard.Localization modul, using the SuppressDependency attribute. It returns a simple Boolean value based on a query to see if there are any ContentItems that list the current item as their MasterContentItem
This is called from the AdminController within Orchard.Core.Contents, and if it returns true then I add a message and redirect to the returnUrl, otherwise the removal continues as normal.
All of this is working perfectly.
HOWEVER, I would like to refactor this to take advantage of the existing infrastructure with IContentManager and add a Removing() method to the LocalizationPartHandler.
My question is - is it possible to "cancel" the remove action based on output of ContentHandler invoked earlier...