Ah! Thanks Vineet. On Fri, Feb 12, 2010 at 3:42 PM, vineet semwal <vineetsemwal1...@gmail.com>wrote:
> Riyad, > 1)url is callbackurl you will get from > abstractdefaultajaxbehavior.getcallbackurl() > 2)method you need to implement is the abstractdefaultajaxbehavior's respond > method > > On Sat, Feb 13, 2010 at 3:58 AM, Riyad Kalla <rka...@gmail.com> wrote: > > > Vineet is exactly right, just to further flesh it out: > > > > You want to add a subclass of AbstractDefaultAjaxBehavior to your page, > > this > > automatically contributes the wicket-ajax.js file to your page which > > exposes > > these JavaScript methods for you: > > > > =================== > > function wicketAjaxGet(url, successHandler, failureHandler, precondition, > > channel) > > and > > function wicketAjaxPost(url, body, successHandler, failureHandler, > > precondition, channel) > > =================== > > > > (paraphrased from Wiki) > > > > The part I'm not clear on is which URL do you call with the JavaScript > and > > which method on the server side is intercepting the GET (or POST)? > > > > That information seems to be missing from the wiki unless it's easier > than > > I > > realize and I'm overthinking this... > > > > On Fri, Feb 12, 2010 at 2:15 PM, vineet semwal > > <vineetsemwal1...@gmail.com>wrote: > > > > > you can do the same thing with wicket ie. on 5th char typed,make a > > > ajaxcallback to wicket, > > > > > > 1)you need to add behavior to component and implement it's respond > method > > > the way it suits your need. > > > 2)in the js part you will make a callback on 5th char > typed,callbackurl > > > you > > > will get from the behavior you > > > added to the component. > > > take a look at > > > > > > > > > http://cwiki.apache.org/confluence/display/WICKET/Calling+Wicket+from+Javascript > > > > > > On Sat, Feb 13, 2010 at 2:15 AM, Steven Haines <lyg...@yahoo.com> > wrote: > > > > > > > Hi, > > > > > > > > I > > > > would like to add AJAX behavior to an application that sends an > update > > > > to my application after a certain number of characters have been > typed. > > > > For example, if the user is entering a zipcode, I would like a > callback > > > > to my application to be made after the user enters the fifth > character. > > > > > > > > I've > > > > written code using OnChangeAjaxBehavior that sends messages back to > my > > > > application after every character has been typed, such as the > > following: > > > > > > > > final TextField<String> zipcodeField = new TextField<String>( > > > "zipcode" > > > > ); > > > > form.add( zipcodeField.setRequired( true ) ); > > > > OnChangeAjaxBehavior zipcodeUpdated = new OnChangeAjaxBehavior() { > > > > @Override > > > > protected void onUpdate( AjaxRequestTarget target ) { > > > > System.out.println( "Zipcode value: " + > > > > zipcodeField.getDefaultModelObjectAsString() ); > > > > } > > > > }; > > > > zipcodeField.add( zipcodeUpdated ); > > > > > > > > > > > > I > > > > could check to see the size of the zipcodeField (in this example), > but > > > > it makes my application more chatty than it needs to be. I also tried > > > > using onblur, which works fine, but does not satisfy my business > > > > requirements: > > > > > > > > final TextField<String> zipcodeField = new TextField<String>( > > "zipcode" > > > ); > > > > form.add( zipcodeField.setRequired( true ) ); > > > > > > > > AjaxFormComponentUpdatingBehavior zipcodeOnBlur = new > > > > AjaxFormComponentUpdatingBehavior( "onblur" ) { > > > > @Override > > > > protected void onUpdate( AjaxRequestTarget target ) { > > > > System.out.println( "Zipcode value (form component): " + > > > > getFormComponent().getModelObject() ); > > > > } > > > > }; > > > > zipcodeField.add( zipcodeOnBlur ); > > > > > > > > > > > > > > > > Prior > > > > to using Wicket (which I'm currently prototyping for my company), we > > > > would handle this logic in JavaScript (observe changes to the field > and > > > > when the user enters the fifth character then we made an AJAX call > back > > > > our Struts 2 application.) > > > > > > > > What is the best way to achieve the same end using Wicket? > > > > > > > > Thanks, in advance, for your help! > > > > Steve > > > > > > > > P.S. > > > > I started using Wicket as part of an article series (because of all > of > > > > your passion for it) and I have to say all of you are doing > incredible > > > > work - I love it.. Here's the link to the article series in case any > of > > > > you are interested: > > > > http://www.informit.com/guides/content.aspx?g=java&seqNum=529 > > > > > > > > --------------------------------------------------------------------- > > > > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > > > > For additional commands, e-mail: users-h...@wicket.apache.org > > > > > > > > > > > > > > > > > -- > > > regards, > > > Vineet Semwal > > > > > > > > > -- > regards, > Vineet Semwal >
