Re: show an expanded tree2 (MyFaces-1.1.1 on JDeveloper 10.1.3 EA)

[Cristofer Weber]

Hans, thanks for the explanations. I think there's another thing in my code that is not working because I get a NullPointerException when I try to call expandAll after building the tree data. When debugging the code I see a empty instance of HtmlTree class even after some iterations with buttons that expand e collapse the nodes.

I will try to recreate the app in a simplified way to see what's wrong.

thanks!

Cristofer

2006/1/27, Hans Sowa <[EMAIL PROTECTED] >:

Hm

I'm not sure wheter I understand you correctly. You don't need a action like commandlink, etc. For instance in the code where you provide the data for the tree you can call the function afterwards. This should work.

2006/1/27, Cristofer Weber < [EMAIL PROTECTED]>:

Hi Hans! First, thanks.

When I´ve created a page whith a commandLink this way works fine, but how can I call the expandAll method without an action like the commandLink? How can I load the page with the tree2 in the expanded state without start an event? I did'nt find examples or information.

Thanks a lot.

[]'s

Cristofer

2006/1/27, Hans Sowa < [EMAIL PROTECTED]>:

Hi Cristofer

I know way which is also explain in the examples as I know (I think, I believe,..)

First you have to to a binding to the tree2 component.

<t:tree2 ... binding="#{ managed-been.tree}">

Then you have to implement the following code in your managed bean:

/** Reference to the tree. */
    private HtmlTree tree;

 /**
     * @return Returns the tree.
     */
    public HtmlTree getTree() {
        return this.tree;
    }

    /**
     * @param tree The tree to set.
     */
    public void setTree(final HtmlTree tree) {
        this.tree = tree;
    }

    /**
     * Öffnet den gesamten Baum.
     *
     */
    public void expandAll() {
        this.getTree().expandAll();
    }

So, with the expandAll fuction you can expand the whole tree.

Hope this helps.

best regards Hans

2006/1/27, Cristofer Weber < [EMAIL PROTECTED]>:

Hi friends

after some days using the examples, I'm trying to create a page with an expanded tree2 component, but I'm with some difficults to do so.

My first try was a PhaseListener getting the ViewRoot and navigating to the tree2 component for send a expandAll message, but without success.



Then, I create my TreeModel extending the TreeModelBase and after the load of my nodes I search for all leafNodes to send a expandPath using the getPathInformation for each node, also without success.


In both tries the tree2 loads correctly, but in the collapsed state.


I'm in the way or there's another way to do it?


Thanks a lot!


Cristofer

--
mfg Hans Sowa
mailto:[EMAIL PROTECTED]

--
mfg Hans Sowa
mailto:[EMAIL PROTECTED]