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<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if operating upon postback, <code>false</code> otherwise.</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.2</dd>
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<h4>setOnPostback</h4>
<pre>public&nbsp;void&nbsp;setOnPostback(boolean&nbsp;onPostback)</pre>
<div class="block"><p class="changed_added_2_2">Controls whether or not this
 component operates o