JavaScript: how to change form action attribute value based on selection?

Question

I'm trying to change the form action based on the selected value from a dropdown menu.

Basically, the HTML looks like this:

<form class="search-form" id="search-form" method="post" accept-charset="UTF-8" action="/search/user">
<select id="selectsearch" class="form-select" name="selectsearch">
<option value="people">Search people</option>
<option value="node">Search content</option>
</select>

<label>Enter your keywords: </label>
 <input type="text" class="form-text" value="" size="40" id="edit-keys" name="keys" maxlength="255" />

<input type="submit" class="form-submit" value="Search" id="edit-submit" name="search"/>
</form>

If "people" is selected, (which it is by default), the action should be "/search/user", and if content is selected, the action should be "/search/content"

I'm still searching around, but haven't been able to find out how to do this.

score 277 · Accepted Answer · answered Dec 18 '09 at 00:54

277

$("#selectsearch").change(function() {
  var action = $(this).val() == "people" ? "user" : "content";
  $("#search-form").attr("action", "/search/" + action);
});

answered Dec 18 '09 at 00:54

cletus

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That is way better than what I was trying... Thank you – n00b0101 Dec 18 '09 at 00:57
1

Worked perfect. Thanks. I updated this code to change the action on submit instead of on form change. – Ryan Dec 16 '11 at 01:25
1

If you design for mobile devices it would be better to change action "on submit" for performance issues. Check my answer below. – trante Dec 13 '13 at 13:13
Use `prop` instead of `attr`. Example = `$("#search-form").prop ("action", "/search/" + action); ` – gsinha Feb 14 '16 at 07:30

score 24 · Answer 2 · edited Feb 10 '14 at 15:56

24

If you only want to change form's action, I prefer changing action on-form-submit, rather than on-input-change. It fires only once.

$('#search-form').submit(function(){
  var formAction = $("#selectsearch").val() == "people" ? "user" : "content";
  $("#search-form").attr("action", "/search/" + formAction);
});

edited Feb 10 '14 at 15:56

Tiny

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answered May 25 '13 at 13:44

trante

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score 1 · Answer 3 · answered Feb 04 '20 at 10:15

Simple and easy in javascipt

<script>

  document.getElementById("selectsearch").addEventListener("change", function(){

  var get_form =   document.getElementById("search-form") // get form 
  get_form.action =  '/search/' +  this.value; // assign value 

});

</script>

score 0 · Answer 4 · answered Mar 06 '18 at 19:13

It's better to use

$('#search-form').setAttribute('action', '/controllerName/actionName');

rather than

$('#search-form').attr('action', '/controllerName/actionName');

So, based on trante's answer we have:

$('#search-form').submit(function() {
    var formAction = $("#selectsearch").val() == "people" ? "user" : "content";
    $("#search-form").setAttribute("action", "/search/" + formAction);
});

Using setAttribute can save you a lot of time potentially.

why would DOMElement `setAttribute` save any time over using jquery `attr`? — enorl76, Mar 08 '19 at 16:33

score 0 · Answer 5 · answered Apr 27 '21 at 10:58

If you want to change from Pure javascript means use follow methods. Same as Ankush Kumar's code with Extra methods

function fn_one(){
  document.formname.action="https://google.com/search?q=form+submit+using+name";
}
function fn_two(){
  document.getElementsByName("formname")[0].action="https://google.com/search?q=form+submit+using+name+method+2";
}
function fn_three(){
  document.getElementById("formid").action="https://google.com/search?q=form+submit+using+ID";
}

<form name="formname" id="formid" action="google.com/search?q=" target="_blank">
  <div>
    <button type="button" onclick="fn_one()">Change By Name {1}</button>
    <button type="button" onclick="fn_two()">Change By Name {2}</button>
    <button type="button" onclick="fn_three()">Change By ID</button>
  </div>
   <div>
    <button type="submit">Go To Google</button>
  </div>
</form>

score -16 · Answer 6 · edited Oct 13 '17 at 13:15

-16

Is required that you have a form?
If not, then you could use this:

<div>
    <input type="hidden" value="ServletParameter" />
    <input type="button" id="callJavaScriptServlet" onclick="callJavaScriptServlet()" />
</div>

with the following JavaScript:

function callJavaScriptServlet() {
    this.form.action = "MyServlet";
    this.form.submit();
}

edited Oct 13 '17 at 13:15

JustCarty

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answered Dec 07 '11 at 18:26

Dago Jobs

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this.form.submit(); will have no sense since there are actually no forms an thus - nothing to submit – SET001 Jun 30 '12 at 07:39

JavaScript: how to change form action attribute value based on selection?

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