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Tree Render Bug?

asked 2008-09-16 10:22:08 +0800

mk gravatar image mk
30

updated 2008-09-16 10:22:41 +0800

Hi

I think I have found a bug in the tree component.

If I declare the component within a zul file like this:
<tree model="${treemodel}" treeitemRenderer="${treeRenderer}">

"treemodel" and "treeRenderer" are declared ahead of the tree component within a <zscript> tag

The tree should be renderer on loading of the zul file with my "treeRenderer", but it is renderer with the default TreeitemRenderer.
As soon as I open the Treeitem, all following Treeitems are renderer correctly with my "treeRenderer".
If necessary I can provide a small example.



<zscript><![CDATA[
TestTreeitemRenderer treeRenderer = new TestTreeitemRenderer();

... (some data filling for demonstration purpose)...

SimpleTreeNode first = new SimpleTreeNode(ls.get(1), ls2);
SimpleTreeNode second = new SimpleTreeNode(ls.get(2), ls3);
ls1.add(first);
ls1.add(second);
SimpleTreeNode root = new SimpleTreeNode(ls.get(0), ls1);

SimpleTreeModel treemodel = new SimpleTreeModel(root);
]]></zscript>
<tree model="${treemodel}" treeitemRenderer="${treeRenderer}">
</tree>


I am using zk 3.50

mfg Michael

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answered 2008-09-17 08:21:45 +0800

dennis gravatar image dennis
3669 1 6
http://www.javaworld.com....

updated 2008-09-17 08:22:11 +0800

I cannot figure out your problem.
Do you mean, the first level nodes are rendered by default renderer, and other level nodes are rendered by your custom renderer?

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answered 2008-09-17 08:45:06 +0800

mk gravatar image mk
30

Yes.
The first level node is not renderer with my custom renderer. As soon as I open the tree my custom renderer is used. Also if I asign the same model through clicking a button, my custom renderer is used.

There is only a problem, if the page is loaded and the tree is initalized, and the first level nodes are rendered. It seems to ignore the assigned renderer and uses the default one.

mfg Michael

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answered 2008-09-17 14:15:44 +0800

mk gravatar image mk
30

I have found a solution to this problem.

<tree id="testt" model="${treemodel}" treeitemRenderer="${treeRenderer}"/>


with this code, the first treenodes are renderer with the default treeitemRenderer and looks like: TestObject@103c29b

But if you, assign the model, after the tree, within a zscript, it works fine and the nodes look like: "test1 3" "test2 3"
<tree id="testt" treeitemRenderer="${treeRenderer}">
</tree>
<zscript><![CDATA[
  testt.setModel(treemodel);
]]></zscript>


mfg Michael

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answered 2008-09-18 01:36:30 +0800

dennis gravatar image dennis
3669 1 6
http://www.javaworld.com....

updated 2008-09-18 01:37:52 +0800

mm...
Use ZUL tag did have sequence issue when assigning attribute in some components.
I did not have sample to run your code.
However, could you help us with following code to see if this work or not.

<tree id="testt"  treeitemRenderer="${treeRenderer}" model="${treemodel}"/>

remove the zscript to set model and move the model attribute later than treeitemRenderer , thanks.

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answered 2008-09-22 09:41:34 +0800

mk gravatar image mk
30

Hi dennis

I was not aware that the ZUL tags had a special sequence order for attributes.
If I rearrange the attribute as you suggested, it works fine.

mfg Michael

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answered 2008-09-23 11:14:02 +0800

dennis gravatar image dennis
3669 1 6
http://www.javaworld.com....

updated 2008-09-23 11:15:15 +0800

Hmm, Maybe we should post it to been a bug ,
check here, http://sourceforge.net/tracker/index.php?func=detail&aid=2124391&group_id=152762&atid=785191

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Asked: 2008-09-16 10:22:08 +0800

Seen: 349 times

Last updated: Sep 23 '08

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