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Have a look at already solved issue <br />
<br />
<a href="https://www.experts-exchange.com/questions/20805196/check-the-size-with-javascript-before-upload.html" rel="ugc">https://www.experts-exchange.com/questions/20805196/check-the-size-with-javascript-before-upload.html</a><br />
<br />
just go through the accepted solution 
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Have a look at already solved issue

https://www.experts-exchange.com/questions/20805196/check-the-size-with-javascript-before-upload.html [https://www.experts-exchange.com/questions/20805196/check-the-size-with-javascript-before-upload.html]

just go through the accepted solution

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Thanks for your reply but i cant use active x as my corporation doesnt allow some of its users to install it.
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Thanks for your reply but i cant use active x as my corporation doesnt allow some of its users to install it.

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Thanks, i will try this and see where it gets me.
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Thanks, i will try this and see where it gets me.

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Hi All<br />
<br />
I have a form that has multiple file upload fields, i have javascript to check the file type and only allow what i want, but how will i &nbsp;check the file size and make sure its under a specific limit before i do upload?<br />
if there is a way to do it with Javascript that would be great as i want to avoid any postback as that will empty all the FileUpload controls values.<br />
<br />

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Hi All

I have a form that has multiple file upload fields, i have javascript to check the file type and only allow what i want, but how will i  check the file size and make sure its under a specific limit before i do upload?
if there is a way to do it with Javascript that would be great as i want to avoid any postback as that will empty all the FileUpload controls values.



ASP.Net How to check filesize before upload?

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ASP.NET

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.