var prop = (JsRender.NodeProp) ((Gtk.ListItem)listitem).get_item();
if (prop == null || _this.node == null ) {
GLib.error("something is wrong");
var prop = (JsRender.NodeProp) ((Gtk.ListItem)listitem).get_item();
if (prop == null || _this.node == null ) {
GLib.error("something is wrong");