codeigniter ajax form submit

Question

i have a form (made through codeigniter) that i want to submit with ajax onClick. Form submits without Ajax and doesnt let me do event.preventDefault();

jQuery file

$('#register_submit').click(function(e){//
   e.preventDefault();
    var first_name = $('#register_form1').val();


    $.ajax({
        type: "POST", 
        async: false, 
        url: base_url+"register/registration_val",   
        data: "register_first_name="+first_name,
        success: function(data){
            $('#inferiz').html(data);
        },
        error: function(){alert('error');}
    }); 

});

// Controller works just fine. name register, function that i POST to is registration_val

HTML file

 <form method="POST" action='<?php echo site_url('/register/registration_val'); ?>' id='register_form' >
   <input type="login" name="register_first_name" id="register_form1">
   <input type='submit' value="Register" id='register_submit'>
 </form>

Problem is, when I click on SUBMIT button, jQuery doesnt do its work, instead, form submits itself to the controller and gives out an ERROR message.
I cannot prevent the form from submitting (which i think would solve the problem), the Click event is completely ignored. Thanks in advance

Answer 1

Try your luck with the submit event instead of click :

$('form').submit(function(e){//
   e.preventDefault();
    var first_name = $('#register_form1').val();


    $.ajax({
        type: "POST", 
        async: false, 
        url: base_url+"register/registration_val",   
        data: "register_first_name="+first_name,
        success: function(data){
            $('#inferiz').html(data);
        },
        error: function(){alert('error');}
    });     
});

If the from has an id replace 'form' with '#{formId}' .

Notes:

• The code should be inside a DOM ready event callback.
• If the form doesn't exist on DOM ready, you should use delegate event.

Like with this:

$('body').on('submit', 'form', function(e){
   e.preventDefault();
    var first_name = $('#register_form1').val();    

    $.ajax({
        type: "POST", 
        async: false, 
        url: base_url+"register/registration_val",   
        data: "register_first_name="+first_name,
        success: function(data){
            $('#inferiz').html(data);
        },
        error: function(){alert('error');}
    });     
});

Just replace body with a closer static element (if there is one) to enhance performance.

Good Luck!

Answer 2

if you put return false; to the end of click event, it should not submit your form to controller..