How to Dynamic Multiple file upload

Refer below links

https://www.aspsnippets.com/Articles/Select-and-Upload-Multiple-Files-Gmail-Style-using-JQuery-and-ASP.Net.aspx

http://www.c-sharpcorner.com/UploadFile/manas1/upload-files-through-jquery-ajax-in-Asp-Net-mvc/

http://www.encodedna.com/2013/09/multiple-fileupload-using-jquery-aspdotnet.htm

https://www.codeproject.com/Articles/113418/ASP-NET-File-Upload-with-Progress-Bar

https://www.codeproject.com/Articles/697038/Implementing-multiple-file-upload-with-progress-ba

https://www.codeproject.com/script/Articles/ArticleVersion.aspx?aid=460142&av=669590