d class="mdescLeft">&#160;</td><td class="mdescRight">An event used to indicate that a property's value has changed.  <a href="class_g_w2___addon___manager_1_1_opening_view_model.html#abe170379989001bacd1afb3db24efbbd">More...</a><br /></td></tr>
<tr class="separator:abe170379989001bacd1afb3db24efbbd"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p><code><a class="el" href="class_g_w