xpages button - possible to change text or item while events are running?

Question

Is it possible to change the text on an <xp:button> element when the code under the onclick event is running (and the partial refresh is not completed)?

Answer 1

The XPages way is to use the onStart and onComplete properties (there's also onError):

<xp:button value="Search" id="button1">
    <xp:eventHandler event="onclick" submit="true" refreshMode="partial" 
        onStart="changeText()" onComplete="unchangeText()">
            <xp:this.action><![CDATA[#{javascript:serverFunction();}]]></xp:this.action>
    </xp:eventHandler>
</xp:button>

You can pass the id of the button to the functions using "#{id:button1}" and use it to retrieve the button in CSJS.