I want to build a drop down menu that the second selection will be displayed if the first selection data belongs to a specific category.
As you can see below, the first selection will be about COUNTRIES. If the country selected has states, then a second drop down selection will be displayed, containing the states of that country.
1)Is there a tag (in my code "xyz") that i can use it to separate the countries in "state" and "no-state" categories? If there is, how can i read the value of the "xyz" tag?
2) If i use the:
<option class="no-state" value="Germany">Germany</option>
and then use the jQuery to read it it will give me the value GermanySpain (which is correct but not what i want)
$('.no-state').val();
HTML PART
<div id="country">
<select>
<option xyz="no-state" value="Germany">Germany</option>
<option xyz="state" value="USA">USA</option>
<option xyz="no-state" value="Spain">Spain</option>
</select>
</div>
<div id="state" style="display:none" >
<select>
<option value="Utah">Utah</option>
<option value="New York">New York</option>
<option value="California">California</option>
</select>
</div>
JQUERY PART
$(document).ready(function(){
$('#country').change(function() {
if (the value of "xyz" tag is === 'no-state')
{
$('div#state').hide();
}
else
{
$('div#state').show();
}
});
});
What can i do to address this issue?
Thanks.
I want to build a drop down menu that the second selection will be displayed if the first selection data belongs to a specific category.
As you can see below, the first selection will be about COUNTRIES. If the country selected has states, then a second drop down selection will be displayed, containing the states of that country.
1)Is there a tag (in my code "xyz") that i can use it to separate the countries in "state" and "no-state" categories? If there is, how can i read the value of the "xyz" tag?
2) If i use the:
<option class="no-state" value="Germany">Germany</option>
and then use the jQuery to read it it will give me the value GermanySpain (which is correct but not what i want)
$('.no-state').val();
HTML PART
<div id="country">
<select>
<option xyz="no-state" value="Germany">Germany</option>
<option xyz="state" value="USA">USA</option>
<option xyz="no-state" value="Spain">Spain</option>
</select>
</div>
<div id="state" style="display:none" >
<select>
<option value="Utah">Utah</option>
<option value="New York">New York</option>
<option value="California">California</option>
</select>
</div>
JQUERY PART
$(document).ready(function(){
$('#country').change(function() {
if (the value of "xyz" tag is === 'no-state')
{
$('div#state').hide();
}
else
{
$('div#state').show();
}
});
});
What can i do to address this issue?
Thanks.
Share Improve this question asked Jun 8, 2014 at 10:09 christostsangchristostsang 1,8413 gold badges30 silver badges47 bronze badges4 Answers
Reset to default 4Added a variable to keep if a country has states or not according your custom attribute xyz
js
$(document).ready(function(){
$('#country').change(function() {
var hasStates = $(this).find("option:selected").attr("xyz");
if (hasStates == 'no-state')
{
$('div#state').hide();
}
else
{
$('div#state').show();
}
});
});
fiddle
I think you can make use of .data() jQuery method, which reads the data-* a valid html5 attribute, but you have to change your markup to fix and use this script:
$('#country select').change(function() {
if ($(this).find('option:selected').data('xyz') === 'no-state') {
$('div#state').hide();
} else {
$('div#state').show();
}
});
You have to add a data-* prefix to get to it and make it a valid html5 attribute.
<select>
<option data-xyz="no-state" value="Germany">Germany</option>
<option data-xyz="state" value="USA">USA</option>
<option data-xyz="no-state" value="Spain">Spain</option>
</select>
Using the class attribute isn't that bad:
HTML
<select>
<option class="no-state" value="Germany">Germany</option>
<option class="state" value="USA">USA</option>
<option class="no-state" value="Spain">Spain</option>
</select>
JavaScript
$(document).ready(function(){
$('#country').change(function() {
var $sel = $(this).find("option:selected");
if ($sel.hasClass("no-state"))
{
$('div#state').hide();
}
else
{
$('div#state').show();
}
});
});
Fiddle
First of all I would change your html structure to:
<select id="country">
<option xyz="no-state" value="Germany">Germany</option>
<option xyz="state" value="USA">USA</option>
<option xyz="no-state" value="Spain">Spain</option>
</select>
<select id="state" style="display: none;">
<option value="Utah">Utah</option>
<option value="New York">New York</option>
<option value="California">California</option>
</select>
Then you can simply do:
$("#country").change(function() {
var hasState = $(this).find(':selected').attr('xyz') === "state";
$("#state").toggle(hasState);
});
Here is a fiddle to see it in action.