Posts belonging to Category ZK

ZK – Communicating with the server

November 16, 2011 | Posted by Ozkey

Using Javascript instead of zscript to calculate a value means you don’t have to communicate with the server until necessary but how do you send data back to the server? I could not find a complete answer so here is my answer below:

In your zul page you will need a textbox (hidden if you want)

<textbox id="serverComm" class="serverComm"></textbox>

Your Javascript put something like this to trigger event

    zk.Widget.$($(".serverComm")).setValue("value to send");
    wid = zk.Widget.$($(".serverComm"));
    zAu.send(new zk.Event(wid, 'onUser', location));

In your “GenericForwardComposer” you need to listen for the event:

	Textbox serverComm;
	public void onUser$serverComm(Event event) throws Exception {
		Event eventx = Events.getRealOrigin((ForwardEvent)event);
		String test = eventx.getData().toString();
		System.out.println(test);
	}

So you don’t make the same mistakes I made:

don’t make your on event like “onMyEvent” I think “onUser” is an event made just for this.
I tried sending value without the textbox but it just did not work.

Category Categories: Java, Javascript, Uncategorized, ZK