Property :: modified - Modified property

Implementation overview

• Has property been updated internally?
  Property :: modified (  )
• Mark property or instance as being modified
  Property :: modified ( bState )

Implementation details

1. Has property been updated internally?
   bool Property  :: modified (  )
   

   The property returns whether the instance in the property handle or any subordinated instance has been modified (and is not yet saved) or not.

   When the instance contains unsaved modifications, the property returns true , false otherwise.The property throws an exception, when no instance is accessible for the property handle.

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2. Mark property or instance as being modified
   bool Property  :: modified ( bool bState )
   

   The function marks the instance selected in the property handle as modified. This is usually done automatically when assigning a value to a property handle. In order to force, however, storing the instance, the property value can be set explicitly before calling save() . Otherwise the instance will not be stored to the database when not being updated.

   The modified state cannot be reset, i.e. passing false in bState will not change the modify state.

   The function throws an exception, when no instance is selected in the property handle or when the instance is write protected ( readOnly() ).

   • bState - Success

     The value is true when the function was executed successfully. Otherwise the value is set to false .

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