Trying to display an error message on my JSF page

Question

Hi,
I'm very new to JSF and hopefully this will be easy to answer. I'm trying to display an error message when a user fails to login correctly. I have this on my login page:
<h:message for="userid" id="inputError"></h:message>
and in the login bean that handles the login, I invoke this method when the login fails, passing in the appropriate error string
     private void setError(String error) {
          FacesContext ctx = FacesContext.getCurrentInstance();
          FacesMessage fm = new FacesMessage();
          fm.setSeverity(FacesMessage.SEVERITY_ERROR);
          fm.setSummary(error);
          fm.setDetail("ERROR: " + error);          
          ctx.addMessage("userid", fm);
But the error is not displaying upon a failed login and so I'm wondering if there is something more I need to do. Your help is appreciated, - Dave

Answer 1

To get the "real" client id use
ctx.addMessage(myComponent.getClientId(ctx), fm);and bind the userid input text to your backbean
view code:
<input binding="#{bean.myComponent}" ...backbean code:
private UIInput myComponent;
// getter/setter
public UIInput getMyComponent() { return this.myComponent; }
public void setMyComponent(UIInput myComponent) {
    this.myComponent = myComponent;
}I hope this helps...