@SelectorParam("window > button")

For selector syntax, please refer to SelectorComposer


Target: A method's parameter (for initial and command methods)

Purpose: To specify that a method's parameter should be retrieved from view component of the binder.

The value element is the selector for finding components. It uses Selectors to select the components. The base component of the selector is the view component of the binder, the component which uses ViewModel.

If the parameter type is a Collection, binder passes the result directly. Otherwise it passes the first result or null if there is no result.


<vbox apply="org.zkoss.bind.BindComposer" viewModel="@id('vm') @init('foo.SelectorParamVM')">

    <hbox><label id="message"/></hbox>
    <hbox><label /></hbox>
    <hbox><label /></hbox>
    <hbox><label /></hbox>

    <button id="cmd" label="cmd" onClick="@command('cmd')"/>

Example to pass components by selector

public class SelectorParamVM {

    public void cmd(@SelectorParam("label") LinkedList<Label> labels, 
        @SelectorParam("#message") Label msg) {

        for (int i = 0; i < labels.size(); i++) {
            labels.get(i).setValue("Command " + i);
        msg.setValue("msg in command");