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December 28, 2015 19:49
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Update HTML drop down with JSON file with an AJAX request
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{ "options": [ {"value": "New1", "text": "New Option 1"}, {"value": "New2", "text": "New Option 2"}, {"value": "New3", "text": "New Option 3"} ] } |
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jQuery(function($) { | |
$("#btnUpdate").click(function() { | |
$.ajax({ | |
url: "json_file.json", | |
dataType: "json", | |
success: function(data) { | |
var options, index, select, option; | |
// Get the raw DOM object for the select box | |
select = document.getElementById('theSelect'); | |
// Clear the old options | |
select.options.length = 0; | |
// Load the new options | |
options = data.options; | |
for (index = 0; index < options.length; ++index) { | |
option = options[index]; | |
select.options.add(new Option(option.text, option.value)); | |
} | |
} | |
}); | |
}); | |
}); |
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<!DOCTYPE html> | |
<html> | |
<head> | |
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script> | |
<meta charset=utf-8 /> | |
<title>Test Page</title> | |
<!--[if IE]> | |
<script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script> | |
<![endif]--> | |
<style> | |
article, aside, figure, footer, header, hgroup, | |
menu, nav, section { display: block; } | |
body { | |
font-family: sans-serif; | |
} | |
p { | |
margin: 0px; | |
} | |
</style> | |
</head> | |
<body> | |
<input type='button' id='btnUpdate' value='Click to Update'> | |
<select id='theSelect'> | |
<option>Old Option</option> | |
</select> | |
<script src="json_load.js"></script> | |
</body> | |
</html> |
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If you want a non - AJAX version, here it is https://gist.github.com/fahdi/7553465