Hello people, I have a program where I can upload excels, sometimes when the user upload a file, it takes many minutes, and he keeps waiting until the file is ready.
I want to show a message to the user that is gonna take some time until the file is ready, but i want to continue the process of reading the file while the message is showed, without diong a postback or breaking interrupting the code.
What process i could use to do it?
What I have tried:
I dont know what to try, i'm searching for advices
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