Gediminas:

I'm not much of an IBO expert, but I've had to deal with IBO used with
treeviews. My table has about 50,000 nodes which choked most dbTrees out there,
but I ran across two/three which didn't and you might find others:
the TwwdbTreeviews from Woll2woll, but these are kind of clunky with poor drag
and drop support

The VirtualStringTree from Mike Litche (sp?) www.delphi-gems.com (I think?) has
a number of data aware versions which others have created. See his web page. For
the large trees the best so far has been a demo which Gerard Slurink posted on
their news group. I'm not sure if it is posted on the VST site. I've been using
that with no problems and it includes very fast loading times, good NG support,
many, many easy to set properties, very good drag & drop support and more than I
can possibly be aware of other settings and uses.

Gerard's particular demo draws from two tables, with one being the "details" and
creating a tree. You might find it helpful. A word of warning: Treeviews are
very complex and have a steep learning curve and VST is no exception (at least
for me). His demo is not a component, but separate pas files that you can use.
Make sure you get his corrections that he added around the end of December. You
can easily substitute IBO component access in his demo. He uses IBX in the demo.

There are several other dbTreeviews at the VST site which may be even better
suited. Check them out. At least one is based on IBO.

Good luck,

Chuck Belanger

Gediminas wrote:

> is there something similar as treeview component, but with the IBO dataset
> support? I would like to use treeview component, whose items belong to one
> dataset, but subitems belong to other dataset (this would be master-detail
> relationship; master - node; details - subnodes).
> Now IBO doesn't have treeview dataset aware component
>
> --/ Gediminas /--
> The Truth Is Out There
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