javascript click a value in dropdown list

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I have the following code written in HTML:

    <table cellspacing="0" cellpadding="0" width="100%" class="HeaderTable">
    <tbody><tr>
        <td id="dnn_ctr6707_TimeTableView_TdClassesList" class="HeaderClassesCell">
            class
            <select name="dnn$ctr6707$TimeTableView$ClassesList" onchange="javascript:setTimeout(&#39;__doPostBack(\&#39;dnn$ctr6707$TimeTableView$ClassesList\&#39;,\&#39;\&#39;)&#39;, 0)" id="dnn_ctr6707_TimeTableView_ClassesList" class="HeaderClasses">
            <option selected="selected" value="14">a</option>
            <option value="15">b</option>
            <option value="16">c</option>
            <option value="17">d</option>
            <option value="49">e</option>
            <option value="60">f</option>
        </select></td>

What i'm trying to do, is programmly click the option 'b' In the console tab. for some reason it doesn't work for me altho it seems good I think.

Here's what I tried:

var x = document.getElementById('dnn_ctr6707_TimeTableView_ClassesList') // this part work
var y = x.options[1].click() // I managed to get the text of the option but I want it to perform click and it doesn't work that way :(

Thank you for your help!

I think what you want to do is set the value of the select instead of clicking on the option.

Try this instead:

document.getElementById('dnn_ctr6707_TimeTableView_ClassesList').value = "15"

JavaScript - Get selected value from dropdown list, A JavaScript example to show you how to get the selected value or text from a dropdown list. A drop box list. <select id="country"> <option  Method 1: Using the value property: The value of the selected element can be found by using the value property on the select element that defines the list. This property returns a String representing the value attribute of the <option> element in the list. If no option selected then nothing will be returned.

I think what your asking is for an event to be activated. Javascript doesnt have a .click() function i believe.

var x = document.getElementById('dnn_ctr6707_TimeTableView_ClassesList');
var evt = new Event('click');
x.options[1].dispatchEvent(evt);

How to get selected value in dropdown list using JavaScript , Method 1: Using the value property: The value of the selected element can be found by using the value property on the select element that defines the list. A JavaScript example to show you how to get the selected value or text from a dropdown list. A drop box list. <select id="country"> <option value="None">-- Select --</option> <option value="ID001">China</option> <option value="ID002" selected>United State</option> <option value="ID003">Malaysia</option> </select> Get option value :

Here is some simple code that lets you enter an index into a text field and the pick that index from the <select> element.

var btn = document.querySelector('#select');
var inp = document.querySelector('#inp');
var sel = document.querySelector('#dnn_ctr6707_TimeTableView_ClassesList');

btn.addEventListener('click', function() {
  var val = parseInt(inp.value, 10);
  sel.selectedIndex = val;
});
class
<select name="dnn$ctr6707$TimeTableView$ClassesList" id="dnn_ctr6707_TimeTableView_ClassesList" class="HeaderClasses">
<option selected="selected" value="14">a</option>
<option value="15">b</option>
<option value="16">c</option>
<option value="17">d</option>
<option value="49">e</option>
<option value="60">f</option>
</select>
<hr/>
<input id="inp" type="text" value="0"/>
<button id="select">Select</button>

HTML DOM Select value Property, If the drop-down list allows multiple selections, the first selected option is returned​. If there is no selected options, nothing is returned. More Examples. Example. Your script is incorrect. By the way, why do you need to execute javascript to click on a dropdown list? Basically, you can just use ‘Click’ keyword and pass in your dropdown list object.

javascript select option , javascript dropdown list , javascript combobox, Get the selected value of dropdown list using JavaScript. The following program shows how to get selected index value or selected text from a Javascript  A dropdown list provides a method of selecting only one option from a lots of options while only using up as much space as a single option except while a selection is being made. Javascript Select options

Programmatically Preselect Dropdown Using Javascript, How to programmatically preselect a dropdown list using javascript. Post-select an item by the value of the value attribute <select id="ddl_example5"  The user selects the value from the dropdown, hits Go, and the choice is made. By using javascript we can have the list notify us when a change is made, and we can essentially hit that Go button for the user. Not only do we save the use all the hassle of clicking on a button, we also get a handy reduction in the amount of screen real estate used.

Get Value or Selected Option in Select Box Using JavaScript, So the value of the selected option can be obtained in JavaScript as follows: // reference to 'scripts' select list // used throughout the examples below var sel =  Here is a JavaScript code line: var x = document.form1.list.value; Assuming that the dropdown menu named list name="list" and included in a form with name attribute name="form1".

Comments
  • Why do you want your program to click the option 'b'?
  • Possible duplicate of How do I programmatically set the value of a select box element using JavaScript?
  • Try x.selectedIndex = 1;
  • Or x.selected = true.
  • @Thefourthbird Thanks it works also, but I found pew007 answer to be shorter :)
  • Thanks!, Shortest answer I saw :)
  • @Z.Zadon Glad to help