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How to programmatic trigger an onSelect$myListBox Event

asked 2018-10-19 01:29:19 +0800

bztom35 gravatar image bztom35
1

updated 2018-10-19 12:43:09 +0800

cor3000 gravatar image cor3000
4263 1 7
ZK Team

I want to select the first item on rsListBox before doBeforeComposeChildren() method.

How to select the first item on onSelect$rsListBox below programmatically?

public void onSelect$rsListBox(Event evt) {
    this.fcst_sensor_id  = (String)rsListBox.getSelectedItem().getValue();
    String header = (String)rsListBox.getSelectedItem().getLabel();
    this.HeadingTitleReservoir.setLabel(header);
    System.out.println("Selected  id:" + this.fcst_sensor_id);
}
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answered 2018-10-19 13:01:09 +0800

cor3000 gravatar image cor3000
4263 1 7
ZK Team

updated 2018-10-19 14:13:00 +0800

Before doBeforeComposeChildren ... there's nothing rendered yet so you can't select a listitem at this point.

onSelect$rsListBox is an event listener which also will only trigger if a component receives an event. If not yet rendered there won't be an event.

Said that, the think you might have to look into is model-based rendering (either by template or item renderer). i.e. you populate the data and selected object(s) before the rendering happens.

here an example http://zkfiddle.org/sample/3ajgh1d/1-listbox-with-model-and-initial-selection

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Asked: 2018-10-19 01:29:19 +0800

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Last updated: Oct 19

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