<div dir="ltr">Hi, in the example <div><a href="http://geoext.github.com/geoext2/examples/tree/tree.html">http://geoext.github.com/geoext2/examples/tree/tree.html</a></div><div style>The layers are not mutually exclusive since it allows not have any selected layer.</div>
<div style>Is there a way to always leave one layer selected?<br></div><div style>Thanks</div></div>