Try to first create a static example without rpc. Create it based on the frontend/demo/demo/build/html/test/* files of the qooxdoo sdk. You can take the Tree_1.html file as a starting point. If you got this working go ahead using your rpc code.

When this does not work post your example which should be as simple as possible but still showing your problem and which should be runnable from the frontend/demo/demo/build/html/test/* folder.

Otherwise we can just guess how your code looks like.

Yasu Takahashi schrieb:
Hi again,

alert(parent);
returns...
[Object qx.ui.treefullcontrol.TreeFolder]

alert(parent.getContainerObject())
returns...
undefined

mmm...
Not working..

On 12/12/06, *Dietrich Streifert* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote:

    Hi,

    try the getContainerObject() method of TreeFolder and on the
    result the getChildren() method. This should contain the
    TreeFolder and TreeFile instances.

    Yasu Takahashi schrieb:
    Hi all,

    It returns...

    alert(parent.getChildren()[0]);
    [object qx.ui.embeded.HtmlEmbeded]

    alert(parent.getChildren()[1]);
    [object qx.ui.basic.Image]

    alert(parent.getChildren()[2]);
    [object qx.ui.basic.Label]

    None of them seems treeFolder or treeFile...

    I cannot figure out this problem for so long...
    I only know alert() to debug, and it is very difficult.

    Please help me.

    On 12/9/06, *jamescowan* <[EMAIL PROTECTED]
    <mailto:[EMAIL PROTECTED]>> wrote:


        I do treeFolder.getChildren()[1];

        I think the first element of getChildren contains the html
        rendering of the
        tree and at element position 1 the child tree folder.

        I think this is right - it was not clear to me from the api
        documentation;
        looking through the treefolder object's properties in firebug
        is the way I
        came to this. There might be a better way?

        James



        Yasu Takahashi wrote:
        >
        > Hello,
        >
        > Please help me...
        > I've spend so many days trying to get this work.
        > I have read API and documentation, but could not figure out...
        >
        > I am using classes below:
        > qx.ui.tree.AbstractTreeElement
        > qx.ui.tree.Tree
        > qx.ui.tree.TreeFile
        > qx.ui.tree.TreeFolder
        >
        > and I can get "parent" by getParentFolder() function, but I
        cannot get
        > "children".
        >
        > //------------------------
        > // Adding children to a parent. Change the parent to the
        first child,
        > then do that again 10 times.
        > // parent - root of tree.
        > //------------------------
        > for(j = 0; j < 10; j++){
        >    if(!parent.hasContent()){
        >       parent.open();
        >       rpcAddChildren(parent);  //get children from database
        and add to
        > parent. This is working
        >       alert("add children");
        >    }
        >
        >    /*
        >       This part is NOT working.
        >        I want to set new parent.
        >    */
        >    parent = parent.getFirstChild();
        > }
        >
        > Thank you =)
        >
        > 
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