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TreeItem.getItems inaccurate [message #502867]

Thu, 10 December 2009 05:33

Craig Foote

Messages: 199
Registered: July 2009

Senior Member

We need to programmatically expand a node and then get a list of its
children.

In our implementation, we are using a DeferredContentManager to provide
the children. We called expandToLevel and then treeItem.getChildren and
this intermittently returns an incomplete list of children.

We also tried setExpandedState and setExpandedTreePath and even attaching
an ITreeViewerListener (which never got notified of the expansion).

So what is the correct way to programmatically expand a node and then get
a complete list of its children?

Craig

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Re: TreeItem.getItems inaccurate [message #503759 is a reply to message #502867]

Tue, 15 December 2009 11:08

Craig Foote

Messages: 199
Registered: July 2009

Senior Member

Anyone?

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Re: TreeItem.getItems inaccurate [message #503947 is a reply to message #503759]

Wed, 16 December 2009 15:12

Grant Gayed

Messages: 2150
Registered: July 2009

Senior Member

You may get more response if you ask this on the eclipse.platform newsgroup,
since that is where DeferredContentManager comes from.

Presumably it's a timing issue where your items haven't been added to the
Tree yet, but since I'm not familiar with DeferredContentManager I don't
know why it would work inconsistenly. A hack you can try is to do your
getChildren() call in a Display.asyncExec() runnable, to give the new items
an extra cycle to be added to the Tree. I would not suggest this as a final
solution though, just as a way of confirming whether it is related to
timing.

Grant

"Craig Foote" <CraigFoote@gmail.com> wrote in message
news:hg8ca9$fjf$1@build.eclipse.org...
> Anyone?

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