/** Renders the options, including the blank option. */
@BeforeRenderTemplate
void options(MarkupWriter writer) {
selectedClientValue = tracker.getInput(this);
// Use the value passed up in the form submission, if available.
// Failing that, see if there is a current value (via the value parameter), and
// convert that to a client value for later comparison.
if (selectedClientValue == null)
selectedClientValue = value == null ? null : encoder.toClient(value);
if (showBlankOption()) {
writer.element("option", "value", "");
writer.write(blankLabel);
writer.end();
}
SelectModelVisitor renderer = new Renderer(writer);
model.visit(renderer);
}
public TreeNode<T> getById(String id) {
return find(encoder.toValue(id));
}