Show/Hide different forms based on a option selected

Question

I would like to know how to show/hide different forms based one form\'s selection.

In the sample code below all three forms are automatically set to display:none. I woul

Answer 1

If you don't want to use jQuery, you can add this to the top of your HTML:

<script>
function changeForm(form) {
  for (var i=0; i<form.length; i++){
    var form_op = form.options[i].value;
    if (form_op == form.value) {
      document.getElementsByName(form_op)[0].style.display = "block";
    }
    else {
      document.getElementsByName(form_op)[0].style.display = "none";
    }
   }
  }
</script>

and then add onChange="changeForm(this)" to your main form. // onChange not case sensitive.

Answer 2

just add this to the end of the HTML

    <script type="text/javascript">
    $('select').change(function(e){
            $this = $(e.target);
            var selected_form = $this.text().replace(' ','_name');
            $('form').hide(2000, 'easeOutExpo');
            $(selected_form).show(2000, 'easeOutExpo');
        });
    </script>

Answer 3

You can use jQuery to help you with it :

<form id="form-shower">
<select id="myselect">
<option value="" selected="selected"></option>
<option value="form_name1">Form 1</option>
<option value="form_name2">Form 2</option>
<option value="form_name3">Form 3</option>
</select>
</form>

<form name="form_name1" id="form_name1" style="display:none">
<!---- THIS IS FORM 1---->
</form>

<form name="form_name2" id="form_name2" style="display:none">
<!---- THIS IS FORM 2---->
</form>

<form name="form_name3" id="form_name3" style="display:none">
<!---- THIS IS FORM 3---->
</form>
<script>
$("#myselect").on("change", function() {
    $("#" + $(this).val()).show().siblings().hide();
})
</script>

I added an id to your select and change the id name of your three forms :)

Hope it helps :)

Answer 4

<select>
    <option value="" selected="selected"></option>
    <option value="form_1">Form 1</option>
    <option value="form_2">Form 2</option>
    <option value="form_3">Form 3</option>
</select>

<form name="form_1" id="form_1" style="display:none">
<input type="text" value="1">
</form>

<form name="form_2" id="form_2" style="display:none">
<input type="text" value="2">
</form>

<form name="form_3" id="form_3" style="display:none">
<input type="text" value="3">
</form>​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

JS:

$("select").on("change", function() {
    $("#" + $(this).val()).show().siblings().hide();
});​

Sample at http://jsfiddle.net/dfYAs/

Answer 5

For future readers, this setup will show/hide those forms dynamically with no external libraries:

function changeOptions(selectEl) {
  let selectedValue = selectEl.options[selectEl.selectedIndex].value;
  let subForms = document.getElementsByClassName('className')
  for (let i = 0; i < subForms.length; i += 1) {
    if (selectedValue === subForms[i].name) {
      subForms[i].setAttribute('style', 'display:block')
    } else {
      subForms[i].setAttribute('style', 'display:none') 
    }
  }
}

Then the html:

<select onchange="changeOptions(this)">
  <option value="" selected="selected"></option>
  <option value="form_1">Form 1</option>
  <option value="form_2">Form 2</option>
  <option value="form_3">Form 3</option>
</select>

<form class="className" name="form_1" id="form_1" style="display:none">
  <!---- THIS IS FORM 1---->
</form>

<form class="className" name="form_2" id="form_2" style="display:none">
  <!---- THIS IS FORM 2---->
</form>

<form class="className" name="form_3" id="form_3" style="display:none">
  <!---- THIS IS FORM 3---->
</form>​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

Answer 6

$(document).ready(function() {
  $("select").change(function() {
    $(this).find("option:selected").each(function() {
      var optionValue = $(this).attr("value");
      if (optionValue) {
        $(".box").not("." + optionValue).hide();
        $("." + optionValue).show();
      } else {
        $(".box").hide();
      }
    });
  }).change();
});

.box {
  color: #fff;
  padding: 20px;
  display: none;
  margin-top: 20px;
}

.red {
  background: #ff0000;
}

.green {
  background: #228B22;
}

.blue {
  background: #0000ff;
}

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <title>jQuery Show Hide Elements Using Select Box</title>

  <script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
</head>

<body>
  <div>
    <select>
      <option>Choose Color</option>
      <option value="red">Red</option>
      <option value="green">Green</option>
      <option value="blue">Blue</option>
    </select>
  </div>
  <div id="check" class="red box">You have selected <strong>red option</strong> so i am here</div>
  <div id="check" class=" box">You have selected <strong>green option</strong> so i am here</div>
  <div id="check" class="box">You have selected <strong>blue option</strong> so i am here</div>
</body>

</html>