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I try to upload file of 4Mb after click on upload button it give me below error

Error :
Application Error: Sorry page, you are looking for is not found in mvc

i have written no validation code that will check size of file ,but it giving me this issue

2.32MB file get uploaded successfully

Following is my code

<input style="display:inline-block;" type="file" name="excel_file" id="excel_file" accept=".csv, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/">

and following function called after upload button click

function ValidateFields() {
            if ($("#ddval").val() == "") {// || $("#excel_file").val() == "") {
                alert("Please select action");
            else if ($("#excel_file").val() == "") {
                alert("Please select file");
            else {
            return false;

please help me on this

What I have tried:

i tried many thing but still it giving me error
Updated 19-Jun-23 0:01am

In IIS, the maximum request size is 4Mb. If you try to upload a file one byte larger, you will get a 404 error.

You need to modify the request limits to allow for larger file uploads. That means modifying your web.config file in two places:
        <httpRuntime maxRequestLength="10240" />
         <requestLimits maxAllowedContentLength="1048576" />
NB: The setting under system.web is in kilobytes, whereas the one under system.webServer is in bytes. So to make them match, the second needs to be equal to 1024 × the first.

With this config in place, you will be able to upload files up to 10Mb. If you need to support larger files, then increase the values - you can set any value up to approximately 2Gb.
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The error message you are getting is a 404 error: page not found. That has nothing to do with the code you show, it means that the page the user (or a redirect) is trying to access has an incorrect URL and cannot be located.

I'd start by looking at the URL ...
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Akshay malvankar 19-Jun-23 0:01am    
then why it not throw error while uploading 2 mb file ,if page is not there then same error should be giving while uploading 2mb files also

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