How To: Kinetic - Upload a Client File, Parse, and Display in a Grid

You guys are suggesting to use this sandbox.io thing instead of File.Open and File.ReadAllText? I don’t really know what that means. Is it another coding language? I also see this post showing how to not hard code the file path when uploading a file. 10.2.600 & AR Invoice Form - Epicor ERP 10 - Epicor User Help Forum

I’d like my code to not break. Can you tell me more about how to use sandbox instead of the code I have? Also, where would I implement the code that Mark has in post 30 of that thread? I think I might use it in the custom code section of my function before defining the string of the folder location.

I am also not clear on which parts Hannah intends to be replaced in her path in the original code. We are on cloud. This is what I have been trying to use for my upload path:

string filePath = @"\centralusdtapp01.epicorsaas.com\SaaS512\EpicorData\APP\Companies\VTAERO"