How to use

setAttribute

method

in

org.zkoss.zul.Window

public Window() {
  setAttribute("z$is", Boolean.TRUE); //optional but optimized to mean no need to generate z$is since client handles it
}

private void setActivePatient(Patient patient) {
  // Build the demographic display here
  activePatient = patient;
  root.setAttribute(Constants.SELECTED_PATIENT_ATTRIB, activePatient);
  ZKUtil.detachChildren(pnlDemoRoot);
  
  if (patient != null && patientDetailRenderer != null) {
    patientDetailRenderer.render(pnlDemoRoot, patient, this);
  }
  
  btnDemoDetail.setDisabled(activePatient == null);
  updateControls();
}