I'm expanding a panelbar based on text from another element, which is easy enough.
var
li = $(
"#panel"
).find(
"span.k-header:contains('"
+ _txt +
"')"
).closest(
"li.k-item"
);
$(
"#panel"
).data(
"kendoPanelBar"
).expand(li);
Now, how do select/open the first child panel under it?