Currently the HTML5 <datalist>
element is supported in most major browsers (except Safari) and seems like an interesting way to add suggestions to an input.
However, there seem to be some discrepancies between the implementation of the value
attribute and the inner text on the <option>
. For example:
<input list="answers" name="answer">
<datalist id="answers">
<option value="42">The answer</option>
</datalist>
This is handled differently by different browsers:
Chrome and Opera:
FireFox and IE 11:
After selecting one, the input is filled with the value and not the inner text. I only want the user to see the text ("The answer") in the dropdown and in the input, but pass the value 42
on submit, like a select
would.
How can I make all browsers have the dropdown list show the labels (inner text) of the <option>
s, but send the value
attribute when the form is submitted?
This question is related to
javascript
html
cross-browser
html-datalist
When clicking on the button for search you can find it without a loop.
Just add to the option an attribute with the value you need (like id
) and search for it specific.
$('#search_wrapper button').on('click', function(){
console.log($('option[value="'+
$('#autocomplete_input').val() +'"]').data('value'));
})
I realize this may be a bit late, but I stumbled upon this and was wondering how to handle situations with multiple identical values, but different keys (as per bigbearzhu's comment).
So I modified Stephan Muller's answer slightly:
A datalist with non-unique values:
<input list="answers" name="answer" id="answerInput">
<datalist id="answers">
<option value="42">The answer</option>
<option value="43">The answer</option>
<option value="44">Another Answer</option>
</datalist>
<input type="hidden" name="answer" id="answerInput-hidden">
When the user selects an option, the browser replaces input.value
with the value
of the datalist
option instead of the innerText
.
The following code then checks for an option
with that value
, pushes that into the hidden field and replaces the input.value
with the innerText
.
document.querySelector('#answerInput').addEventListener('input', function(e) {
var input = e.target,
list = input.getAttribute('list'),
options = document.querySelectorAll('#' + list + ' option[value="'+input.value+'"]'),
hiddenInput = document.getElementById(input.getAttribute('id') + '-hidden');
if (options.length > 0) {
hiddenInput.value = input.value;
input.value = options[0].innerText;
}
});
As a consequence the user sees whatever the option's innerText
says, but the unique id from option.value
is available upon form submit.
Demo jsFiddle
Using PHP i've found a quite simple way to do this. Guys, Just Use something like this
<input list="customers" name="customer_id" required class="form-control" placeholder="Customer Name">
<datalist id="customers">
<?php
$querySnamex = "SELECT * FROM `customer` WHERE fname!='' AND lname!='' order by customer_id ASC";
$resultSnamex = mysqli_query($con,$querySnamex) or die(mysql_error());
while ($row_this = mysqli_fetch_array($resultSnamex)) {
echo '<option data-value="'.$row_this['customer_id'].'">'.$row_this['fname'].' '.$row_this['lname'].'</option>
<input type="hidden" name="customer_id_real" value="'.$row_this['customer_id'].'" id="answerInput-hidden">';
}
?>
</datalist>
The Code Above lets the form carry the id of the option also selected.
The solution I use is the following:
<input list="answers" id="answer">
<datalist id="answers">
<option data-value="42" value="The answer">
</datalist>
Then access the value to be sent to the server using JavaScript like this:
var shownVal = document.getElementById("answer").value;
var value2send = document.querySelector("#answers option[value='"+shownVal+"']").dataset.value;
Hope it helps.
Source: Stackoverflow.com