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Treeviewer expander gives false indication [message #905691]

Thu, 30 August 2012 22:31

Herb Miller

Messages: 22
Registered: September 2011

Junior Member

I am populating a treeviewer, and almost everything is working correctly.

I am getting complaints from the users that the little expander/collapser triangle indicates that a particular branch is expandable, even though there are no entries on that branch. When they click the expander, the expander becomes invisible. Shouldn't the expander be invisible before it is selected if there are no entries on that branch?

Is there any way for me to make the expander/collapser triangle invisible for a node of a treeviewer if there are no entries on that node?

Thanks.

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Re: Treeviewer expander gives false indication [message #905755 is a reply to message #905691]

Fri, 31 August 2012 02:45

Herb Miller

Messages: 22
Registered: September 2011

Junior Member

Well, through some experimentation, I may have found the answer.

The hasChildren implementation of the ITreeContentProvider was not returning false in all cases when there were no children.

Thanks.

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