Refresh Button does not refresh the label displayed by LabelProvider

Hi ,

I have an attribute present in the custom LabelProvider and the same attribute is also displayed in the editor area. Now if the value of the attribute is changed and I hit "refresh" , only the value inside the editor is updated.The label shows the earlier value. In case I click on any other item and then come back to this one, then label is refreshed.

How do I refresh the label on hit of "refresh" button?