Message de Regina Henschel date 2010-01-09 15:33 :
Hello,
I need to react on the change of the property CircleStartAngle and
CircleEndAngle of an EllipseShape. I tried to use a
PropertyChangeListener but it doesn't work. So I tried a
PropertyChangeListener with a more simple example to learn whether I do
something wrong, see code below.
Hi Regina,
Here is the description of interface XPropertySet in the API :
There are three types of properties:
* bound properties
* constrained properties
* free properties
You can listen to changes of bound properties with the XPropertyChangeListener
and you can veto changes of constrained properties with the XVetoableChangeListener.
Few objects have bound properties. You will find them in form controls, e.g. in
a TextField. If you use Xray (with detailed display) on such control, it will
indicate "value change may be listened" for some properties : Align,
BackgroundColor, Border, DataField, Tag, etc. For these properties you will
receive a correctly filled event object.
Regards
Bernard
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