Change select box value text - javascript

I got one text box and one select box.
<input type="text" />
<select>
<option value=1>Test1</option>
<option value=2>Test2</option>
</select>
Now i want when user type anything in text box, to change value=2 text.
I tried this, but looks like don't work.
$(document).ready(function () {
$("#textbox").keyup(function () {
$("select#sync[value='2']").text($(this).val());
});
});

Apart from the fact that you haven't given the elements IDs, the problem is that you need to access the <option> element (that one has a value of 2 - there is no <select value=2>). Also, IDs are unique, so using select#sync is (should be) the same as #sync:
$("#sync option[value='2']")

<input type="text" id="textbox" />
<select>
<option value="1">Test1</option>
<option value="2">Test2</option>
</select>​
$(document).ready(function () {
$("#textbox").keyup(function() {
$("select option[value='2']").text($(this).val());
});​
});
http://jsfiddle.net/gxaWE/

you can try
$("#sync").val($(this).val());
provided that the user only types the value that is in range
DEMO

$("#text_box").keyup(function() {
$("#sync option[value='2']").text($(this).val());
});
​
​
Here is fiddle showing it working:
http://jsfiddle.net/bRw8Z/1/
It changes select option number 2 text. Is that what you wanted?

I see a few problems here:
It doesn't make sense to set the innerText of a <select> element; you want to set its value instead,
The #textbox selector wouldn't actually select anything.
If your input did not exactly match an <option>'s value attribute, the first <option> would be selected.
This snippet will select an <option> if its value attribute matches the value of the text input.
$(document).ready(function () {
$("input").keyup(function () {
var $select = $("select"),
value = $(this).val();
if($select.find('option[value="' + value + '"]').length){
$select.val(value);
}
});
});​
http://jsfiddle.net/2XxRQ/1/

Related

HTML Dropdown Box with Search and Input

I've tried to search for what I'm after, and this is the closest I can get:
Make a Dropdown with Search Box using jQuery (by Yogesh Singh)
https://makitweb.com/make-a-dropdown-with-search-box-using-jquery/
It can provide a HTML Dropdown with Search capability.
However, what I hope to have is to have input capability as well. I.e., if nothing found, then use the user input as the result.
I tried to look at the code,
$(document).ready(function(){
// Initialize select2
$("#selUser").select2();
// Read selected option
$('#but_read').click(function(){
var username = $('#selUser option:selected').text();
var userid = $('#selUser').val();
$('#result').html("id : " + userid + ", name : " + username);
});
});
UPDATE: using datalist. Requirement:
if found, use found value as the result.
if nothing found, then use the user input as the result.
Maybe both are the same case, but I don't know js well to say that.
$(document).on('change', '#place', function () {
$("#fax").val($("#place").val());
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="text" id="place" list="places">
<datalist id="places">
<option value="WVC" label="503-882-1212"></option>
<option value="HAM" label="612-883-1414"></option>
<option value="WON" label="317-445-8585"></option>
</datalist>
<br>
<input type="text" id="fax">
I don't see an easy way to do that myself, as I don't know js quite well.
It is possible, to use the user input as the result if nothing found? thx
<datalist> is like a separate select element and linked to the text field previous to it and simply updates the value of textfield based on what is selected. If you like to run your code based on change event on the text field, you need to read the datalist first and then pick the label from it. If there is no value, then pick the text from the textfield.
$(document).ready(function () {
$(document).on('change', '#place', function () {
let myString =
$(this).next().find("option[value='" + $(this).val() + "']").prop("label");
myString = myString ? myString : $(this).val();
$("#fax").val(myString);
$(this).val(myString); //IF YOU LIKE TO SHOW SAME STRING IN TEXT FIELD TOO
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<input type="text" id="place" list="places">
<datalist id="places">
<option value="WVC" label="503-882-1212"></option>
<option value="HAM" label="612-883-1414"></option>
<option value="WON" label="317-445-8585"></option>
</datalist>
<br>
<input type="text" id="fax">

Remove Value When an option is deselected

Edit:: What I am trying to achieve is I am getting each option text not the value, so I can send it to an API. Getting the text from the select works perfectly. I want to remove it when I deselect an option from the input value when I click it again. For example if I select multiple I get Medit-4-packs, Swiss-Gear-Bag When I click it one by one it removes it but when I deselect multiple I get the value of another. I want to replace the value as empty when deselected like usual. Hope it helps to clarify
Any help on using jquery to deselect Select option from input value? These are what I have tried so far. Thanks for help
Trying to remove the values in the <input> when option gets deselected.
<input class="form-check-input" type="text" value="" id="equipment" name="equipmentitems" >
<select multiple class="image-picker show-labels show-html" data-limit="16" name="packages[]" id="group_psoft">
<option value=" " data-img-class="first" selected></option>
<option data-img-src="/images/" data-img-label="Scanner Tips(4Pcs)" name="packs" data-img-alt="KeepSame" value="400" >Medit-4-packs</option>
<option data-img-src="/images/" data-img-label="SwissGear Bag" name="bagoriginal" data-img-alt="Aggresive" value="200"> Swiss-Gear-Bag</option>
</select>
Js
$('.image-picker').imagepicker({
show_label: true,
limit: 15,
//This is setting the text in the input
selected: function($items) {
$('#equipment').val($(this).find('option:selected').text());
},
// Here I want to remove it if clicked again
changed: function(){
$('#equipment').val($(this).unbind('option:selected').text()); // This removes it but add all the other options text in the input
$('#equipment').val($(this).unbind('option:selected').val( )); // Here It removes it but I get the value of the next selected option.
$('#equipment').val($(this).unbind('option:selected').text(' ' )); This I get Js [object,object]
}
});
I solved it when I move the code outside the function. I also changed unbind() to on() method.
$('.image-picker').on('change', function() {
$('#equipment').val($(this).find('option:selected').text());
});
Try this and see if it works out.
$('.image-picker').imagepicker({
show_label: true,
limit: 15,
//This is setting the text in the input
selected: function($items) {
$('#equipment').val($(this).find('option:selected').text());
},
// Here I want to remove it if clicked again
changed: function(){
var equiValue = $('#equipment').val();
var selectedValue = $(this).find('option:selected').text();
if(equiValue === selectedValue) {
$('#equipment').val("");
}
}
});

jQuery merging select field and text input values in real time to another text field

I have a three field form. I'd like the third field (text box) to display a combination of the first two fields ... one being a select field and the other being a text field; these values separated with a space. I have tried the following with little success.
<form>
<select name="val1" id="val1">
<option value="">Select a value</option>
<option value="foo">foo</option>
<option value="bar">bar</option>
</select>
<input name="val2" id="val2" />
<input name="val3" id="val3" />
</form>
<script>
$('#val1, #val2').keyup(function(){ $('#val3').val($('#val1').val()+' '+$('#val2').val()); });
<script>
What I'm expecting is when a user selects an option from the select field, is value would appear in the third form field and when a user types something in the second field, its value would also appear in the third field separated with a space. This would all happen in real time. Oddly enough, the jQuery code does nothing in all browsers.
Maybe something to do with the keyup() function as a select field is using the mouse only. But even if I ignore the select field and type something in the second field, it should appear in the third field alone, but it doesn't.
Your #val1 is a select element, the keyup event can't be called with that.
Instead, you neeed to use change event.
$('#val1').change(function () {
changeThird();
});
$('#val2').keyup(function () {
changeThird();
});
function changeThird() {
$('#val3').val($('#val1').val() + ' ' + $('#val2').val());
}
JsFiddle: http://jsfiddle.net/ghorg12110/e7ru9jao/
For asp:TextBox, you need to use .attr() if you want to get the data generated:
$('#val1').change(function () {
changeThird();
});
$('#val2').keyup(function () {
changeThird();
});
function changeThird() {
$('#val3').attr("value", $('#val1').val() + ' ' + $('#val2').val());
}

jQuery: If user changes select to specific option then change different input value

I have a select box like so:
<select id="update_type_picker" name="update_type_picker">
<option value="play">Played</option>
<option value="play">playing</option>
<option value="want">Want</option>
<option value="rating">Rate</option>
</select>
And an input like this:
<input id="playing" name="playing" type="hidden">
And I'm trying to make this jquery work:
$(document).ready(function () {
$("select#update_type_picker").change( function() {
var text = this.text;
if (text = "playing") {
$("input#playing").attr('value', '1');
} else {
$("input#playing").attr('value', '');
}
});
});
I need to use text (not value) because two of the values are the same. With the jquery above the input value changes to 1 regardless of which option I choose. How can I make this work they way I need it to? Thanks!
You have to use:
var text = $(this).find("option:selected").text();
And as mentioned in a comment, you have to use == or === to compare strings in the if, not =.

How to get the id dropdown list on click event

This is my jspPage.
<select id="class_Teacher" name="classTeacher" style="height:25px; width: 190px;" onchange="Class(this.id)">
<option id="1">Manager</option>
<option id="2">Supervisor</option>
</select>
And here is javascript
function Class(str)
{
alert(str);
}
i want to get the id of Option on onchange Event. Thanks :)
You can do this if you are trying to get the id of the option which has been selected
function Class(str)
{
var select = document.getElementById("class_Teacher");
var option = select.options[select.selectedIndex];
alert(option.id);
}
Your onchange event will look like this. Just remove the .id as that will return the id of the select box itself not the option
onchange="myFunction(this)"
and your javascript function like this, which will alert the ID of the selected option
function myFunction(ele){
alert(ele.options[ele.selectedIndex].id);
}
Broken down ele represents the select box (a dom object). .options accesses the options within the select box. the [] brackets are a way of accessing a specific option. Like an array myArr[1] etc. and ele.selectedIndex returns a number representing the selected option i.e if the first option is chosen - ele.selectedIndex will be equivalent to 0.
HTML (you should use "value" attribute instead of "id")
<select id="class_Teacher" name="classTeacher" style="height:25px; width: 190px;" onchange="onChange()">
<option id="1" value="ID1">Manager</option>
<option id="2" value="ID2">Supervisor</option>
</select>
JS
var selectElement = document.getElementById("class_Teacher");
selectElement.onchange=function(){
alert(selectElement.options[selectElement.selectedIndex].id); // id in the html element
alert(selectElement.selectedIndex); // index starting from 0
alert(selectElement.value); // value of the selected element
};
Fiddle
Use selsectedIndex Property of GetElementByID
<script>
function val() {
d = document.getElementById("select_id").selectedIndex;
alert(d);
}
</script>
<select onchange="val()" id="select_id">

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