ublic function BooleanExpression()</code><p></p><p>
		 Constructor.
		 </p></div><div class="detailSectionHeader"> Event Detail </div><a name="event:valueChanged"></a><table class="detailHeader" cellpadding="0" cellspacing="0"><tr><td class="detailHeaderName">valueChanged</td><td class="detailHeaderType"> Event </td></tr></table><div class="detailBody"><p></p><p></p><p>
	 Dispatched when the value property has changed.
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