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ValueChangeEvent help!!

 
Kumar Gaurav
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There is a dropDown for which there is a valueCahngeListener. On exceuting code

valueChangeEvent.getOldValue().. its always giving null, But valueChangeEvent.getNewValue() is giving the current value that is selected in drop down.
Any cue why it is coming so.
 
Bauke Scholtz
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The getOldValue() gives the originating value as it was during initial display/render of the page.
The getNewValue() gives the newly selected value as the client has chosen.

What did you expect then?
 
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