Thanks. David. I am still confused by the automatic validation. I couldn't turn it off. --- "David G. Friedman" <[EMAIL PROTECTED]> wrote:
> Tong, > > You can change the form's submit action using almost > any form field type > (except hidden) using the onClick or onChange > methods. > > If you have a submit button button, you can do this: > <input type="submit" name="Save" value="save" > onClick="this.form.action='/save.do';return true;" > /> > > To save the button name into a hidden parameter such > as a hidden field > ActionName, you can do this: > <input type="hidden" name="ActionName" /> > <input type="submit name="Save" value="save" > onClick="this.form.ActionName.value='save';return > true;" /> > <input type="submit name="Delete" value="delete" > onClick="this.form.ActionName.value=delete';" /> > > Or even: > > <input type="submit name="Save" value="save" > onClick="this.form.ActionName.value=this.value;" /> > (I might be slightly off on the ActionName.value > setting property). > > If you choose to make the onClick invoke a function > (for performing even > more steps than that) and the input was a submit > button, remember to NOT do > a form.submit() within that JS function - it would > cause a double submit > when invoked from a submit button. If it isn't a > submit button but some > other type of button, you can probably do a > form.submit() if it doesn't do > it automatically. > > As for preventing automatic validation in an Action, > Erik was spot on with > validate="false" as an attribute and value in your > <action .../> mapping. > Just invoke the validate method with the appropriate > arguments for the > Action class you're extending. > > And finally, on your topic of making one select > change another select, the > only way I know (and did this once, long ago) was to > set a javascript > function to be called by the first one's onClick or > onChange method. That > function can be passed the this.form object, then > get to the second pulldown > by name or id, delete every select item, then add > each new item. Creative > use of the iterate tag plus javascript can do it, or > you could find good > examples if you google - that's how I learned how to > do it. > > Regards, > David > > -----Original Message----- > From: t t [mailto:[EMAIL PROTECTED] > Sent: Wednesday, November 10, 2004 6:41 PM > To: Struts Users Mailing List > Subject: Re: Help needed on question regarding > html:select and > html:options...cannot turn off validator > > > How can I turn off validator? THanks. > --- t t <[EMAIL PROTECTED]> wrote: > > > Or I can set a parameter before executing the > added > > action. > > --- t t <[EMAIL PROTECTED]> wrote: > > > > > Hi, Erik, > > > I got an idea. I can insert another action > before > > > the actual action be executed. And use > javascript > > > change a hidden property before executing the > > added > > > action, then I can do what i want to do in the > > > added action. What do you think? I will try it > > > later. > > > Thanks for your help! > > > Tong > > > > > > Erik Weber <[EMAIL PROTECTED]> wrote: > > > JavaScript can change the action URL on the fly. > > For > > > example: > > > > > > > > > http://www.willmaster.com/possibilities/archives/wmp20030527001.shtml > > > > > > However, I'm not sure how compatible this type > of > > > thing will be with the > > > Struts form tag. I've never tried it. I'm > > surprised > > > others aren't > > > speaking up because the "multiple submit" > problem > > > comes up a lot. If you > > > search the archives for "multiple submit > buttons" > > > you might find other > > > ideas. > > > > > > Erik > > > > > > > > > t t wrote: > > > > > > >Hi,Erik, > > > >I think that helps. I have another question. > > > Besides the "action" attribute in html:form, is > > > anywhere else we can specify another "action" > > > corresponding the submission of javascript? > > > >Thanks. > > > >Tong > > > > > > > >Erik Weber wrote: > > > >There may be other ways or better ways, but one > > > thing you could do is > > > >vary the action URL. You could have the same > > action > > > class serving > > > >slightly different action mappings, some with > > > validation set to true and > > > >some with validation set to false. > > > > > > > >I did what you are trying to do in a non-Struts > > > Servlet app, and there I > > > >just used a query string parameter to indicate > > > which type of submit was > > > >happening (but I didn't have to worry about > > getting > > > past the validator). > > > >Remember that JavaScript can change the value > of > > a > > > field (including a > > > >hidden field) before it submits the form. > > > > > > > >Also, another technique for conditionally using > > the > > > validator is to turn > > > >automatic form validation off, override the > > > validate method in your > > > >ActionForm, but there simply invoke the > validator > > > manually just as > > > >Struts would have done with automatic > validation. > > > This gives you a > > > >chance to insert a switch before invoking the > > > validator. > > > > > > > >Probably there are others on the list who know > a > > > lot more about this > > > >than me and might have a better idea. Hope that > > > helps. > > > > > > > >Erik > > > > > > > > > > > >t t wrote: > > > > > > > > > > > > > > > >>The problem is, when the form is submitted, it > > > will be validated according to the validator. > then > > > error will occur since the user didn't intend to > > > submit and he/she didn't fill other required > > fields. > > > > > > >>And in my "acion" program, I don't know how to > > > tell whether it was submitted by "javascript" or > > by > > > the "submit" button. > > > >>Any idea about that? > > > >>Thanks. > > > >> > > > >>t t wrote: > > > >> > > > >>Thank you for the hint. I will try. > > > >>Erik Weber wrote:I don't know exactly how do > it > === message truncated === __________________________________ Do you Yahoo!? Check out the new Yahoo! Front Page. www.yahoo.com --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
