jQuery how to load some json records into a form fields?

Question

i have a json file:

{
   "data":"Click",
   "size":"Here"
}

and a form:

<form>
   First name: <input type="text" name="firstname" /><br />
   Last name: <input type="text" name="lastname" />
</form>

i was wondering what is the correct sintax for loading multiple json records into multiple form elements?? Something like a form that u want to u want to modify and the values get queered into those fields

i know i can use:

$getJSON('link_to_json_file' function() {

});

but i'm stuck here thanks

Answer 1

Or if your data return was fieldname value pairs like:

{"firstname" : "John", "lastname" : "Doe"}

you could do it like:

$.getJSON('url_to_file', function(data) {
    for (var i in data) {
        $('input[name="'+i+'"]').val(data[i]);
    }
});

Answer 2

Could you take a look at the JQuery loadJSON plugin on the http://code.google.com/p/jquery-load-json/ ? On the page http://code.google.com/p/jquery-load-json/wiki/WorkingWithFormElements is explained how this plugin load JSON object into the form. You can also find one live example here http://jquery-load-json.googlecode.com/svn/trunk/edit.html?ID=17. I think that this is exactly what you need. Just create empty form and load json in the form using the following code:

$('form').loadJSON(data);

This plugin handles all form elements such as check boxes, select list radio buttons etc. If you use it you will need to download plugin from the http://code.google.com/p/jquery-load-json/source/browse/trunk/scripts/jquery.loadJSON.js.