DBBaseContext :: deleting - Instance is going to be deleted
In order to suppress processing of event handlers when the instance selected in the property handle is going to be deleted. When deleting an instance, context functions should not read or access subordinated instances.
Return value: Success ( bool )
The value is true when the function was executed successfully. Otherwise the value is set to false.
Implementation details
bool
DBBaseContext  :: deleting (  )
The property returns, whether an instance is going to be deleted (true) or not (false). When the DBBaseContext instance is not a PropertyContext or TypeContext, the function returns false.

