Question

I send a form via jquery ajax. I do not only want to send the values of the formcollection I also want to send another id which is hidden in the page.

How can I send the form data + this id? Maybe there is a way to create one json object and I put everything in it?

   jQuery('#myForm').live('submit',function(event) {
        $.ajax({
            url: 'Url.Action("Create")',
            type: 'POST',           
            data: $('#myForm').serialize(),
            success: function( data ) {

            }
        });
        return false;
    });

Answer 1

If your hidden field is already in the form, It will be in your serialized data. You dont need to send it exclusively. If you still want to send another piece of data from outside of your form, you may send it as a querystring value and have your action method a parameter named itemId.(Assuming hdnID is the id of your hidden element)

$.ajax({
        url: '@Url.Action("Create","Home")'+?itemId='+$("#hdnID").val(),
        type: 'POST',           
        data:  $('#myForm').serialize(),              
        success: function( data ) {
        }
     });

http://api.jquery.com/serialize/