Submitting form with Enter key

Question

Hello,
in standard html form, when you have form with submit button, the enter key when any form element is selected submits the form.
This is very convenient for users, so I want this with UIX forms. I know it is possible (I have one form where it is working), but I can't get it working anywhere else.
This code works:
<uix:form method="post" name="newRoleForm">
<uix:inlineMessage prompt="Role name">
<uix:textInput name="newRoleName" />
<uix:spacer width="15" />
<uix:submitButton text="Create" formName="newRoleForm" />
</uix:inlineMessage>
<uix:formValue name="jboEvent" value="newRole" />
</uix:form>
When I copy this code to another page, it does not work...
Can somebody help, please?

Answer 1

I've studied the HTML generated by UIX and it has following bugs and misfeatures:
1. Misfeature: Submitting with Enter works ONLY if there is exactly one text field in the form (no submit button is actually needed), as Brian Stoler wrote. I don't understand reason for this.
2. Bug: UIX generates javascript function "_submitOnEnter" which is called as event handler for "onKeyPress" event. But this function is erroneously generated multiple times, once for each form in the page. Browsers (Mozilla and IE) use the latest implementation. This function is different for forms with one text field and for forms with more text field, but only the first one can do the job. As a consequence of this, Enter can submit the form only if the last form on a page has single text field (which is for example not the case of search form with single field above another form...)
Tested with UIX 2.1.7 in JDeveloper 9.0.3.3, using UIX as JSP tag library.
Workaround:
1. Use Opera browser: it submits form with enter key even if there is no submit button (this does not work for the first text field in the form, because it has "onkeypress" event handler).
2. Implement this feature by hand yourself, if you really need it (see below).
3. Use accessKey: allows to submit form with Alt+<key> combination (followed by Enter with IE).
Implementing Enter key submits with Javascript:
1. Put the following function to the header (or to javascript library):
function enter(e, frm) {
var kc;
if(window.event) kc=window.event.keyCode;
else if(e) kc=e.which;
else return true;
if(kc==13) {
submitForm(frm,1);
return false;
Function copied from UIX (C).
2. Add this event handler to each input element:
onKeyPress="return enter(event, 'formName');"
It is obvious that this is error prone, but it works with all browsers...
Will this be fixed in future versions?
Why only form with one text field can be submitted?