pq21435 Horizontal scrollbar set to XmASNEEDED remains visible once it is initially displayed)
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Affected Platforms:

All


Affected Features:

AppBldr

Prerequisites:


 None


Symptom:

Using XmASNEEDED policy for the scrollbars of a container, once the scrollbars are displayed,
they are not rehidden when the data has changed.




 Workaround:
Resizing the container corrects the problem. 

also, 

The container icon tree uses #itemWidth to keep track of the largest item in the list. 
As new nodes are added, it checks in EwIconList>>#adjustMaxWidth: if the new node is
 larger than any of the previously added nodes.  However, it does not do the converse when
 removing nodes.

As a crude workaround:

	cv itemWidth: 0.
	cv widget refresh.

after removing an item.  This causes excessive redraw, but it does produce the final correct
 result (i.e., scrollbars are hidden when all data is shown).