Tags
People
Badges
Help-
CORE FRAMEWORK
FEATURED COMPONENTS
-
RESOURCES
-
LEARN ZK
RESOURCES
Consider a bunch of components which get their values from databinding and all have an onChange event handler assigned to setup other components.
Example:
<textbox id="A" value="@{win$composer.valueA}" forward="onChange=onAnyFieldChange"/>
<textbox id="B" value="@{win$composer.valueB}" forward="onChange=onAnyFieldChange"/>
<textbox id="C" value="@{win$composer.valueC}" forward="onChange=onAnyFieldChange"/>
<textbox id="D" value="@{win$composer.valueD}" forward="onChange=onAnyFieldChange"/>
onAnyFieldChange fills - say another 4 - components:
public void onAnyFieldChange() {
// compute some new values out of the textboxes A,B,C,D
textboxE.setValue(valueE);
textboxF.setValue(valueF);
textboxG.setValue(valueG);
textboxH.setValue(valueH);
}
Now the problem: when the window opens, all four text boxes A,B,C,D are correctly filled with their values but the onChange handler is not called. So the text boxes E,F,G,H remain empty.
The initial loading via data binding is done after doAfterCompose() method, so how can I get the onAnyFieldChange() method called to get the textboxes E,F,G,H filled?
The onChange will be triggered from client side or by Event.post().
In your case, you may try to use "onCreate=onAnyFieldChagne" with onChange together.
Hey, this seems to do it.
I would not have expected that an "onCreate" event is fired after initial data binding load happened.
Meanwhile I changed the example in that way, that I really use data binding for all text boxes together with some load-after instructions.
I have a second use case, where I can try your solution and probably I'll change also the first use case back, then.
Thank you very much.
Asked: 2010-03-09 09:18:59 +0800
Seen: 443 times
Last updated: Mar 11 '10
