How to show disable HTML select option in by defau

Question

I am new to HTML and PHP and want to achieve a drop-down menu from the mysql table and hard-coded too. I have multiple select in my page, One of them is

<select name="tagging">
    <option value="">Choose Tagging</option>
    <option value="Option A">Option A</option>
    <option value="Option B">Option B</option>
    <option value="Option C">Option C</option>
</select>

Problem is now that user can also select "Choose Tagging" as his tagging but i only want to provide him to chose from available three. I used disable as

<select name="tagging">
    <option value="" disabled="disabled">Choose Tagging</option>
    <option value="Option A">Option A</option>
    <option value="Option B">Option B</option>
    <option value="Option C">Option C</option>
</select>

But now "Option A" became the default one. So i want to set "Choose Tagging" as by default and also want to disable it from selection. Is it a way to do this. Same thing need to be done with other select which will fetch data from Mysql. Any suggestion will be appreciable.

Answer 1

Electron + React Let your two first options be like this

<option hidden="true>Choose Tagging</option>
<option disabled="disabled" default="true">Choose Tagging</option>

First to display when closed Second to display first when the list opens

Answer 2

use

<option selected="true" disabled="disabled">Choose Tagging</option>    

Answer 3

If you are using jQuery to fill your select element, you can use this:

html

<select id="tagging"></select>

js

array_of_options = ['Choose Tagging', 'Option A', 'Option B', 'Option C']

$.each(array_of_options, function(i, item) {
    if(i==0) { sel_op = 'selected'; dis_op = 'disabled'; } else { sel_op = ''; dis_op = ''; }
    $('<option ' + sel_op + ' ' + dis_op + '/>').val(item).html(item).appendTo('#tagging');
  })

This will allow the user to see the first option as a disabled heading ('Choose Tagging'), and select all other options.

Answer 4

You can set which option is selected by default like this:

<option value="" selected>Choose Tagging</option>

I would suggest using javascript and JQuery to observe for click event and disable the first option after another has been selected: First, give the element an ID like so:

<select id="option_select" name="tagging">

and the option an id :

<option value="" id="initial">Choose Tagging</option>

then:

<script type="text/javascript">

$('option_select').observe(click, handleClickFunction);

Then you just create the function:

function handleClickFunction () {

if ($('option_select').value !== "option_select") 
{
   $('initial').disabled=true; }
}

Answer 5

we can disable using this technique.

 <select class="form-control" name="option_select">
      <option selected="true" disabled="disabled">Select option </option>
      <option value="Option A">Option A</option>
      <option value="Option B">Option B</option>
      <option value="Option C">Option C</option>
 </select>

Answer 6

I have a drop down that displays --Select Options-- by default. However, once the option was selected and a mouse click button pressed, the selected option would continue to remain instead of resetting to the default ---select options--- which i needed after the button click event. Following is the sample code for reference :-

<

select [(ngModel)]="selectedValue">
  <option value="selectOptions" disabled="disabled">---Select Options---</option>
  <option *ngFor="let somevalue of somevalues" [value]="somevalue">{{somevalue}}</option>
</select>

export class MyComponent {
  ngOnInit() {
   somevalues= ['abc', 'def','ghi'];
   selectedValue= "selectOptions";
  }
  someFunction() {
     // process selected option 
     var selection = selectedValue;
     :
     :
     //reset selectedValue to "--Select Options--"
     selectedValue = "selectOptions";
  }

}