Hello, I have a problem with validation, for big files.

I want to restrict adding files bigger than 2mb, to the backoffice. At the media files

I made it via Web.config

<requestFiltering>
    <requestLimits maxAllowedContentLength="2000000"/> 
</requestFiltering>

And it is working fine, but when I try to load big files, it just showing that big file is loaded, and nothing happen.

Is there a way to add validation message? Or some other way to achieve the same behavior?

Thank you