The <ext:Window> .TriggerElement and .TriggerEvent properties have been removed in the v0.6 release.

The properties were added in a very early release of the Toolkit as conveinience features which automatically wired up the <Click> Listener to "show" the window.

Since that early release we've built in much more powerful and configurable functionality with the <Listeners> and <AjaxEvents>. Now triggering the Window to "show" should be handled by the triggering control/element.

Please see "Breaking Changes V0.6", items #6 and #7 for more information and code sample.