Collapse

<div id="treeview"></div>
<script>
$("#treeview").kendoTreeView({
  dataSource: [
    { text: "foo", items: [
      { text: "bar" }
    ] }
  ],
  collapse: function(e) {
/* The result can be observed in the DevTools(F12) console of the browser. */
    console.log("Collapsing", e.node);
  }
});
</script>

<div id="treeview"></div>
<script>
function tree_collapse(e) {
/* The result can be observed in the DevTools(F12) console of the browser. */
  console.log("Collapsing", e.node);
}
$("#treeview").kendoTreeView({
  dataSource: [
    { text: "foo", items: [
      { text: "bar" }
    ] }
  ]
});
var treeview = $("#treeview").data("kendoTreeView");
treeview.bind("collapse", tree_collapse);
</script>