As much as I love to use anonymous functions try using a prebound
function reference. Also by extracting the code to send the XHR from
the objects constructor you will allow more flexibility in the future.
var test = Class.create({
initialize : function(url, val){
this.val = val;
this.responseHandle = this.handleResponse.bind(this);
this.sendRequest();
},
sendRequest : function(){
new Ajax.Request(url, {
onSuccess : this.responseHandle,
//other parameters below...
}
},
handleResponse : function(xhr){
alert(this.val + "\n" + xhr.responseText);
}
});
On Sep 8, 6:57 am, "T.J. Crowder" <[EMAIL PROTECTED]> wrote:
> Hi,
>
> It's a binding problem. Event handlers just call functions, not
> methods (JavaScript doesn't *have* methods). When the event handler
> calls the function, it doesn't define the "this" you're expecting.
> Details
> here:http://blog.niftysnippets.org/2008/04/you-must-remember-this.htmlhttp://www.alistapart.com/articles/getoutbindingsituationshttp://blog.niftysnippets.org/2008/03/mythical-methods.html
>
> Use bind() to fix it [or
> bindAsEventListener()]:http://www.prototypejs.org/api/function/bindhttp://www.prototypejs.org/api/function/bindAsEventListener
>
> HTH,
> --
> T.J. Crowder
> tj / crowder software / com
>
> On Sep 7, 10:34 pm, Yosh <[EMAIL PROTECTED]> wrote:
>
> > Hi,
>
> > I'm a problem with this code.
>
> > ////////////////////////////////////////////////////////////////////
> > var test = Class.create({
> > val:null,
> > initialize:function(val) {
> > //obligatoire pour fonctionner
> > this.val = val;
> > new Ajax.Request("file.html", {
> > method: 'POST',
> > evalScripts: true,
> > onSuccess: function(result) {
> > alert("1 "+this.val); // => return
> > 'undefined' => doesn't work?
> > why?
> > alert("2 "+val); // => 'test', reference of
> > initialize:function(val) => ok
> > this.func2(); // => doesn't work? why?
> > }
> > });
> > }
> > func2:function() {
> > alert("1 "+this.val); // => return 'test' => ok
> > }});
>
> > new test("test");
> > ////////////////////////////////////////////////////////////////////
>
> > So, i don't understand why i can't get the value of "val" all the time
> > and in all function of the class.
>
> > Thank you for your help.
>
> > Yohann POLI
>
>
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