Attach existing ViewModel to new tab

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asked 2013-09-30 15:41:14 +0800

updated 2013-10-01 14:33:31 +0800

I'm creating a tabbox UI where each tab is a child of the tab before it. Some functionality requires that the child tab have the same ViewModel instance of it's parent tab. I've succeeded in passing the parent tab's ViewModel into the child tab by setting it as an attribute on the child, but I don't know how to set the passed in ViewModel to be the child's ViewModel.

The practical result is that while calling vm.foo(); works in the child tab, @command('foo') does not.

Any suggestions on how to set the child's ViewModel would be greatly appreciated. Thanks.

Edit: For the record, the parent-child relationship is purely business logic. The tabs are peer tabs in a standard tabbox.

Answer 1

0

answered 2013-10-04 15:42:24 +0800

aavishai
1

Here's the way I figured out how to do it:

<div id="manageProd" apply="org.zkoss.bind.BindComposer">
    <label value="@bind(manageProd.getAttribute('binder').setViewModel(vm))"/> 
    ...do stuff..
</div>

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No one will suggest to do Java stuff in ZUL file

sjoshi ( 2013-10-06 05:22:50 +0800 )edit

Fair enough. What is the correct way to achieve the same result? Also, why is it problematic to do Java stuff in a ZUL? ZK even suggests doing so in the last example on this ZK Developer's Guide page... http://books.zkoss.org/wiki/ZK_Developer's_Guide/ZUL_Components/Layout_and_Windows/Tab_Boxes (http://books.zkoss.org/wiki/ZKDeveloper'sGuide/ZULComponents/LayoutandWindows/TabBoxes)

aavishai ( 2013-10-06 16:24:29 +0800 )edit

Answer 2

answered 2013-10-01 05:31:20 +0800

sjoshi

3493 ● 1 ● 8
http://zkframeworkhint.bl...

If it is a Parent-Child Relation then you can use

Binder bind = (Binder) view.getParent().getAttribute("binder");
        if (bind == null)
            return;
        bind.postCommand("doColumnReordering", params);

doColumnReordering method is in Parent ViewModel

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Attach existing ViewModel to new tab

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