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using input file to display thumbnail

Posted on 2012-04-07
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Last Modified: 2012-04-07
Hi,
is it possible to display a thumbnail when the user selects a image?  

Thanks
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Question by:MK15
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Expert Comment

by:EMB01
ID: 37819111
Certainly.  How would you like to display the thumbnail?  What does your app look like?  Send some code and tell me what you want and I'll help you.
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Expert Comment

by:Hugh McCurdy
ID: 37819903
I have two code examples, one in JavaScript and another in JQuery.  The javaScript one is a bit more complicated than it needs to be for a simple example but it works.  The JQuery one is simpler.

JavaScript -- http://hugh.tekcities.com/hugh/program/web/jsThumb.php

JQuery -- http://hugh.tekcities.com/hugh/program/web/jqThumb.php
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Expert Comment

by:EMB01
ID: 37819968
What I'm asking is:

Are you trying to have a single image like this:

[main image]

And, then have a bunch of thumbnails like this:

[thumnbail][thumnbail][thumnbail]

And, when a user clicks a thumbnail then the main image becomes an enlarged version of the thumbnail they clicked?

Basically, just tell me specifically what you're trying to do.
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Author Comment

by:MK15
ID: 37819974
ok sorry for the lack of information.

what i am trying todo is have a button(<input type='file' name ='select_image'/>), where the user can select an image to upload.  The selected image is then displayed in a thumbnail image holder '<img src="selected_image" alt="image" />'.  I want todo this before actually submitting the form.

Hope this is clearer.

Thanks
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Accepted Solution

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EMB01 earned 500 total points
ID: 37819982
If you mean to select an image from their computer (from their local machine) and show it before it's actually uploaded from the server, this wouldn't be possible being as we can't show it in our web page without it first being placed on the server.  You could do an ajax upload and upload it as soon as they select it, then you could show it before submitting the form.
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Author Comment

by:MK15
ID: 37819995
o ok, thats interesting, ill look into that.

thank you both for your help
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Expert Comment

by:EMB01
ID: 37820025
To help you out, check out http://www.uploadify.com/.  It's a great ajax uploader.
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