Does File Exist?

I am having trouble finding out how to check to see if a certain file exists with VB.NET. I have seen code that uses File.Exists("C:\whatever.txt"), but when I do that I am told that file is not declared. Do I need to reference something extra in order to get this to work or am I doing it all wrong?

Thanks for any help!

I beleive you need to Import System.IO to use the File class.

Code:

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Imports System.IO

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