zk - disable key controls for combobox

问题

Is it possible to disable the keyboard controls for a Combobox in ZK?

That is, when a user enters some text into a Combobox, by default they can use the arrow keys to move up and down the list. I would like to disable this functionally as it doesn't work well with the user experience we are designing.

I see nothing in the documentation explicitly.

回答1:

You can override _doKeyDown js function,

e.g.,

<zk xmlns:w="client">
    <combobox>
        <attribute w:name="_doKeyDown"><![CDATA[
            function (evt) {
                var keyCode = evt.keyCode;
                if (keyCode != 38 && keyCode != 40) {
                    this.$_doKeyDown(evt);
                }
            }
        ]]></attribute>
        <comboitem label="item one" />
        <comboitem label="item two" />
        <comboitem label="item three" />
    </combobox>
</zk>

来源：https://stackoverflow.com/questions/15947733/zk-disable-key-controls-for-combobox