Hi,
the root node doesn't have an open/close button by default, use
tree.setRootOpenClose(true) to show it.
The child nodes' buttons should be displayed automatically. Pasting your
code in the Playground, I could open the root node by double clicking
and saw the buttons on the child nodes.
Regards,
Daniel
f...@mail.dnttm.ro schrieb:
> Hi. Me again.
>
> I have a tree. It is rendered using code like this:
>
> var tree = new qx.ui.tree.Tree();
> var root = new qx.ui.tree.TreeFolder("root");
> tree.setRoot(root);
>
> var group = new qx.ui.tree.TreeFolder("group 1");
> root.add(group);
>
> var file = new qx.ui.tree.TreeFile("file 1.1");
> group.add(file);
> file = new qx.ui.tree.TreeFile("file 1.2");
> group.add(file);
>
> group = new qx.ui.tree.TreeFolder("group 2");
> root.add(group);
>
> file = new qx.ui.tree.TreeFile("file 2.1");
> group.add(file);
> file = new qx.ui.tree.TreeFile("file 2.2");
> group.add(file);
>
> Everything renders just fine. I am even able to attach event handlers to the
> nodes. Only, I can find no way to display the expand/collapse symbol. By
> looking at the code in the demo I came to the conclusion that the symbols
> should be displayed by default, but they don't. I played with openSymbolMode,
> openMode etc., with no success. I did a generate source-all, since I supposed
> the picture resource was somehow not available, but without any result. What
> am I doing wrong?
>
> flj
>
>
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