Thanks, Ted.
I like Craig's suggestion about combining dynamic Javascript menu systems
with Struts. I wonder if anyone has tried this. I'm looking for a Javascript
tree or slider menu to adapt in this way and would appreciate it if anyone
could share any research.
I have looked at "Morten's Javascript Tree Menu"
http://html.tucows.com/programmer/scriptarchives/jsarchive/jstreemenu.html
which is impressive and free. However, it is frame based, too elaborate for
my needs, and uses Windows Explorer tree icons, which is not what I had in
mind.
Thanks
Tom
Ted Husted wrote:
> I've added these to our Jyve FAQ:
>
> How Do I use Javascript in my Struts forms?
> -------------------------------------------
>
> The relevant HTML tags provide support for the Javascript event handlers
> onblur, onchange, onclick, ondblclick, onfocus, onkeydown, onkeypress,
> onkeyup, onmousedown, onmousemove, onmouseout, onmouseover, onmouseup.
>
> For more about Javascript events, see the Netscape Javascript Reference
> guide <
> http://developer.netscape.com/docs/manuals/communicator/jsref/evnt.htm
> >.
>
> For more about HTML tags, see the Struts HTML Tag Guide <
> http://developer.netscape.com/docs/manuals/communicator/jsref/evnt.htm
> >.
>
> The Javascript itself can then be placed
>
> 1. Inline, if it is simple enough, like onclick="history.go(-1)"
> 2. As a <SCRIPT> in your JSP
> 3. As an included <SCRIPT src="my.js"> in your JSP
>
> Note that the Struts Javascript properties use all lowercase
> identifiers, for XML compatibility.
>
> How Do I use Javascript to perform Validations in Struts?
> ---------------------------------------------------------
>
> The best way is using David Winderfeldt's Struts validator servlet
> <http://home.earthlink.net/~dwinterfeldt/>. This provides seamless
> client-side and server-side validation using regular expressions.
>
> Other than that, you can also attach other Javascript validation to the
> Struts form fields using the provided properties for Javascript event
> handling. Of course, these types of validations cannot be guaranteed if
> a browser has Javascript turned off.
>
> Why doesn't Struts provide it's own facility for regex or Javascript
> validations?
>
> It's on the TODO list for the 1.1 release.
>
> Is it possible to combine dynamic Javascript menu systems with Struts?
> ----------------------------------------------------------------------
>
> The challenge with doing this is that the JSP tags run on the server (as
> the page is being generated), while the JavaScript runs on the client
> side. To integrate the two, you need your tags (and other JSP code) to
> dynamically generate the JavaScript functions themselves -- sort of
> having a program write a program -- so that the JavaScript is customized
> to your particular need on this particular page.
>
> A very trivial example is the way that the <html:form> tag deals with
> the "focus" attribute. If you specify it, a dynamically generated bit
> of JavaScript is created to set the input focus, which includes the name
> of the field you want initial focus
> assigned to.
>
> For a more comprehensive scenario, consider that for most menuing
> systems you will need to configure the list of available options into a
> JavaScript array or something. You could use the <logic:iterate> tag to
> render the elements that get set in the array's initialization
> expression.
>
> [Craig McClanahan]
>
> -- Ted Husted, Husted dot Com, Fairport NY USA.
> -- Custom Software ~ Technical Services.
> -- Tel 716 737-3463.
> -- http://www.husted.com/about/struts/
--
Tom Miller
Miller Associates, Inc.
[EMAIL PROTECTED]
641.469.3535 Phone
413.581.6326 FAX
