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I've got a bunch of data on the client side, in JS. I want to allow the user to save that data to the local hard drive in text (CSV actually) format.
I can easily accomplish this by posting all of this data up to the server using ajax, then initiate a GET from the client to download the data. But that seems wasteful. Especially if the data is large.
The client already has the data -- I could certainly show it to them, and allow them to copy/paste it into their favorite text editor -- but that's not a very nice UI.
I want to allow them to save the data to a local file. I understand the security implications here.
I believe this is possible using dataurl, but (thank you MS), this has to work in IE7 and 8.. so that's out.
Any out-of-the-box ideas?
641
Downloadify does this. It requires Flash.
Downloadify is a tiny JavaScript + Flash library that enables the generation and saving of files on the fly, in the browser, without server interaction.
67
Won't work for this specific setup, but it's something along those lines..
http://decafbad.com/2009/07/drag-and-drop/api-demos.html#data_transfer
<!DOCTYPE HTML>
<html lang="en">
<head>
<title>Drag and Drop --> Text File</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<meta http-equiv="Content-Language" content="en-us" />
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
$(document).ready(function() {
// Set up the draggable element.
$('#data_transfer').bind('dragstart', function(ev) {
if (!$(ev.target).hasClass('dragme')) return true;
var dt = ev.originalEvent.dataTransfer;
dt.setData('text/plain', $('#source').text());
return true;
});
});
</script>
<style type="text/css">
.dragme {
border: 1px solid #000;
background-color: #decafb;
padding: 10px;
}
</style>
</head>
<body>
<div id="data_transfer">
<textarea id="source">Blah! I'm a textarea!</textarea>
<p><span class="dragme" draggable="true">Drag Me to your Desktop!</span></p>
</div>
</body>
</html>
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