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need javascript to call hidden value in dropdown list


need javascript to call hidden value in dropdown list

By : Marek Sudak
Date : November 19 2020, 12:41 AM
it should still fix some issue You would probably need Ajax for that chained feature. A simple method for doing it without ajax is using data attribute:
code :
<select id="parent">
    <option value="1">Parent 1</option>
</select>

<select id="child">
    <option data-parentid="1">Child 1 from Parent 1</option>
</select>


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Javascript to show hidden div when option is selected from dropdown list

Javascript to show hidden div when option is selected from dropdown list


By : Tungsten
Date : March 29 2020, 07:55 AM
Does that help Here is an example - I added the same ID as the name to the selects
http://jsfiddle.net/mplungjan/32Ukf/
code :
var sels = {drop2:"legb1",drop3:"legc1",drop4:"legd1",drop5:"lege1"};  
window.onload=function() {
  for (var sel in sels) {
      document.getElementById(sels[sel]).style.display = document.getElementById(sel).selectedIndex>0?"block":"none";
      document.getElementById(sel).onchange=function() {
        document.getElementById(sels[this.id]).style.display = this.selectedIndex>0?"block":"none";
      }
    }
}
How to call a javascript function using asp.net dropdown list

How to call a javascript function using asp.net dropdown list


By : Lestat Zhang
Date : March 29 2020, 07:55 AM
hop of those help? I need to call a javascript function when the dropdown list is changed.
code :
<asp:DropDownList runat="server" ID="DDList" onclick="alert(1)"></asp:DropDownList>
document.getElementById("<%=DDList.ClientID %>").addEventListener("click", fucntionToExecuteName, false)
call javascript function onchange event of dropdown list

call javascript function onchange event of dropdown list


By : Archeus
Date : March 29 2020, 07:55 AM
it fixes the issue Your code is working just you need to declare your javscript method before DOM ready.
call javascript function on asp dropdown list change

call javascript function on asp dropdown list change


By : Nishita
Date : March 29 2020, 07:55 AM
I wish this helpful for you you dosent need to pass this parameter or id, you just call the function and onchange() event call the function. in javascript use id of your dropdown list to get the value of dropdown list.
code :
<script type="text/javascript">
function processchange(value)
{
  if(ddl.value=="American")
    // your code
}
</script>

<dropdownlist id="ddl" onchange="processchange()" >
  //enter your dropdown items
  
  </dropdownlist>
JavaScript : Dynamic Dropdown for Another Hidden Dropdown and Different Option

JavaScript : Dynamic Dropdown for Another Hidden Dropdown and Different Option


By : JamesArnold
Date : March 29 2020, 07:55 AM
Hope that helps I have a dropdown named Agency with 2 options :
code :
<script>
$(document).ready(function(){
$("#Agency").change(function(){

//To remove all the dropdown in myDiv
$('#myDiv').html('');

//Create the new dropdown menu
var whereToPut1 = document.getElementById('myDiv');
var newDropdown1 = document.createElement('select');
newDropdown1.setAttribute('id',"newDropdownMenu");
whereToPut1.appendChild(newDropdown1);

//Create another div inside myDiv for another dropdown menu
var innerDropdowndiv = document.createElement('div');
innerDropdowndiv.setAttribute('id',"innerdropdowndiv");
whereToPut1.appendChild(innerDropdowndiv);
var whereToPut2 = document.getElementById('innerdropdowndiv');

//Create another dropdown menu
var newDropdown2 = document.createElement('select');
newDropdown2.setAttribute('id',"innerDropdownMenu");
whereToPut2.appendChild(newDropdown2);

if ($('#Agency').find(":selected").text() == "PPS") {
                $('#newDropdownMenu').append('<option id="Dep">Department</option>')
                $('#newDropdownMenu').append('<option>Office</option>')
                $('#innerDropdownMenu').append('<option>HQ</option>')
                $('#innerDropdownMenu').append('<option>Branch</option>')
                $('#innerDropdownMenu').append('<option>Stall</option>')

                $("#newDropdownMenu").change(function(){
                    if($('#newDropdownMenu').find(":selected").text() == "Department")
                    {
                      $('#innerdropdowndiv').html('');
                      $('#innerdropdowndiv').append($('<select>').attr('id','innerDropdownMenu'))
                      $('#innerDropdownMenu').append('<option>HQ</option>')
                      $('#innerDropdownMenu').append('<option>Branch</option>')
                      $('#innerDropdownMenu').append('<option>Stall</option>')
                    }
                    else if($('#newDropdownMenu').find(":selected").text() == "Office" && $('#innerDropdownMenu').find(":selected").text()=="Branch")
                    {
                      $('#innerdropdowndiv').html('');
                      $('#innerdropdowndiv').append($('<select>').attr('id','innerDropdownMenu'))
                      $('#innerDropdownMenu').append('<option>Floor1</option>')
                      $('#innerDropdownMenu').append('<option>Floor2</option>')
                    }
                    else if($('#newDropdownMenu').find(":selected").text() == "Office" && $('#innerDropdownMenu').find(":selected").text()=="Stall")
                    {
                      $('#innerdropdowndiv').html('');
                      $('#innerdropdowndiv').append($('<select>').attr('id','innerDropdownMenu'))
                      $('#innerDropdownMenu').append('<option>Floor3</option>')
                      $('#innerDropdownMenu').append('<option>Floor4</option>')
                    }
                    else {
                      {
                        $('#innerdropdowndiv').html('');
                      }
                    }
                })
              }
else {
      $('#myDiv').html('');
}
});
});
</script>
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