I would like to find out if a filename exists in my Image folder, how can I do this in a function using javascript?
How about call a function from Javascript to a C# File? (ON SERVER)
Thank you
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2Short Answer: You can't.gen_Eric– gen_Eric2011-06-30 14:39:21 +00:00Commented Jun 30, 2011 at 14:39
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How about call a function from Javascript to a C# File?user710502– user7105022011-06-30 14:41:29 +00:00Commented Jun 30, 2011 at 14:41
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Is the 'Image' folder on the client or server?gen_Eric– gen_Eric2011-06-30 14:45:33 +00:00Commented Jun 30, 2011 at 14:45
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4 Answers
JavaScript from the browser does not have access to your Image folder on your local computer.
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You have to use a server side language. Javascript won't have access to your folders on the server.
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you have to provide more context
if your javascript is running within browser and you want to check if file exists on client's computer - you can't
if you want to check Image folder on server - you could do AJAX request for that image and then check if HTTP response code is 200 although that would also blow up your traffic and is not a great choice
best option would be to do AJAX request that will invoke a check on server side like /check?image_name=file.jpg
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JavaScript is executed by Browser as Client-side scripting so it doesn't have access to local file system to check whether file exists or not to check file exists or not you need to use Server Side Scripting.
answered Jun 30, 2011 at 14:42
Vishwanath Dalvi
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