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DBBaseContext :: doBeforeDelete - Before delete handler

The before delete handler is called before deleting a data instance (DBP_Delete event). The before delete handler can deny deleting the data instance by returning an error ( any value >0 ).

The handler can be overloaded in specialized type context class.

Return value:  Execution error ( int32  )

The value is usually returned from context functions or actions in order to report the result of execution. The variable may contain following values:

  • -1: function/action not executed
  • 0: function executed normally
  • 1-9: Function executed with errors. Error codes depend on the function/action called.

Implementation details

int32 DBBaseContext  :: doBeforeDelete (  )