Use the following code to automatically expand a TreeNode on mouse over:
Code: JavaScript
function on_item_mouseover(e, info)
{
var node = info.getItem();
if (node)
node.setExpanded(true);
}
Code: HTML/ASPX
<eo:TreeView ClientSideOnItemMouseOver="on_item_mouseover" ....>
.....
</eo:TreeView>
Note the TreeView's ClientSideOnItemMouseOver is set to the name of the JavaScript function "on_item_mouseover" so that this function gets called whenever mouse hovers over a TreeNode. The function then calls the TreeView's client side JavaScript API (setExpanded) to expand the hovering node.
You can find more details about how to use our client side API here:
http://doc.essentialobjects.com/library/1/clientapi_howto.aspxThanks