I think that sounds quite nice as functionality goes, I am no expert
on the tree2, though.
Sean having any thoughts on that?
regards,
Martin
On 6/28/05, CONNER, BRENDAN (SBCSI) <[EMAIL PROTECTED]> wrote:
> I'm assuming that, since no one has answered this, that there isn't an
> easy way to do it as written. Therefore, I'm looking into extending the
> Tree2 component so its action takes another parameter:
> toggleActionListener="#{myListener}"
>
> Behind the scenes, if this parameter is specified, the tree component
> would execute addAction() on the expandControl, thus allowing the
> application developer the ability to intercept the expand or collapse
> events and do other things, such as read the database for more data
> beneath that node.
>
> Does this sound like a reasonable approach, or is the equivalent
> functionality already there, and I'm just missing it?
>
> - Brendan
>
> -------------------
>
> When a use clicks the "expand" icon in a serverside Tree2 component, I
> would like my application to go out and grab more data from the database
> to fill in the details of that node's children. What's the hook in
> Tree2 that I can use to do that? Should I override one of the methods?
> Should I intercept some sort of action?
>
> At first, I tried subclassing TreeNodeBase and overriding the
> getChildren method so it calls a routine in my application to get more
> data. However, this results in having all the data in the entire tree
> retrieved after just clicking on the root, which is not what I want. I
> want just the data for the immediate children retrieved from the
> database when a parent node's "expand" icon is clicked.
>
> Any usage help would be much appreciated!
>
> - Brendan
>
>
