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EA_OnPreDeleteDiagramObject notifies Add-Ins that a diagram object is to be deleted from the model. It enables Add-Ins to permit or deny deletion of the element.

This event occurs when a user attempts to permanently delete an element from a diagram. The notification is provided immediately before the element is deleted, so that the Add-In can disable deletion of the element.


Function EA_OnPreDeleteDiagramObject (Repository As EA.Repository, Info As EA.EventProperties) As Boolean

The EA_OnPreDeleteDiagramObject function syntax contains these parameters.



See also



Direction: IN

Description: Contains this EventProperty object for the element to be deleted:

  • ID: A long value corresponding to DiagramObject.ElementID

EventProperties Class



Direction: IN

Description: An EA.Repository object representing the currently-open Enterprise Architect model. Poll its members to retrieve model data and user interface status information.

Repository Class

Return Value

Return True to enable deletion of the element from the model. Return False to disable deletion of the element.