I have a drop-down list) and one is input type=text. what i want if i select value{2,3} from drop down list not first value then input type will be disabled and if i select again first value then it will be enable.
Let's suppose you have this HTML code:
<select id='dropdown'>
<option value=1>1</option>
<option value=2>2</option>
<option value=3>3</option>
</select>
<input type=text id=textInput />
Then you can act on change event on <select> to make <input> disabled or enabled by adding an event listener.
Since you're using jQuery (as you've added jquery tag to the question), the example code could look like this:
$('#dropdown').change(function() {
if( $(this).val() == 1) {
$('#textInput').prop( disabled, false );
} else {
$('#textInput').prop( disabled, true );
}
});
Here's a working fiddle:
https://jsfiddle.net/wx38rz5L/2268/
