Hi, > ...like this: > $('fullName').value = json.fullName; > for an returned parameter fullName and an html element ID of fullName.
It would be helpful if you gave a more thorough explanation of what you're looking to do. But, just for the sake of an example, let's assume: 1. You are sending back properly-formatted JSON with the correct MIME type in response to an Ajax.Request. 2. The JSON data will have a success flag and firstName and lastName properties, like this: { 'success': true, 'firstName': 'Joe', 'lastName': 'Bloggs' } 3. You want to display the names in the format "firstName lastName" in an element that already exists on the page with the ID "fullName". Here's how you can do that: function showError(errmsg) { alert(errmsg); // or whatever } function showName(elm, obj) { elm.update(json.firstName + " " + json.lastName); } new Ajax.Request(url, { // Success handler onSuccess: function(response) { var json, elm; // Get the object containing the data from the request. // Since you returned it with the correct content type (application/json), // Prototype has _already_ deserialized it for you and put it in the // member 'responseJSON'. (You don't need to use evalJSON() unless // you're not setting the content type correctly.) json = response.responseJSON; // Check that the JSON was returned if (!json || !json.success) { showError("Couldn't get the name."); } else { // Get the "fullName" element elm = $('fullName'); if (!elm) { // Show an error? The element is missing. } else { // Set its content from the JSON data showName(elm, json); } } }, // Failure handler onFailure: function(response) { showError("Error getting the name from the server."); } }); Hopefully that'll get you headed the right way. Although it doesn't talk about JSON, this article[1] on the unofficial wiki may also be helpful in terms of bulletproofing your Ajax requests. [1] http://proto-scripty.wikidot.com/prototype:how-to-bulletproof-ajax-requests HTH, -- T.J. Crowder tj / crowder software / com Independent Software Engineer, consulting services available On Jul 9, 3:37 am, chrysanthe m <chrysant...@gmail.com> wrote: > Hi David > Thanks, but I think I one step further. I am assuming an Ajax.request() has > happened, returned and what I am looking at to understand further is syntax > like this: > $('fullName').value = json.fullName; > for an returned parameter fullName and an html element ID of fullName. I am > wondering, can I do > $('fullName').value =processMe( json.fullName); > which I know the obvious is try it. I will, just trying to get an heads > up. I will report back. Also I am assuming that prototpye is processing > that nomenclature $('fullName') segment and just doing a > document.getElementById. Any insight appreciated. > > > > On Wed, Jul 8, 2009 at 12:25 PM, David Behler <d.beh...@gmail.com> wrote: > > > I guess you would have to use Ajax.Request to process the returned > > value before updating the designated element. > > > But I'm beginner and could be wrong here. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Prototype & script.aculo.us" group. To post to this group, send email to prototype-scriptaculous@googlegroups.com To unsubscribe from this group, send email to prototype-scriptaculous+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/prototype-scriptaculous?hl=en -~----------~----~----~----~------~----~------~--~---