Detecting an Empty Flat File with the Script Task

I am attempting to get this script provided by Microsoft to work to no avail. Specifically, when I set the variable FFNonDataRows to 1 (in order to accomodate for the header row), the variable is not being set to False as expected. I don't know enough about C# to understand why this script isn't working. Can anyone get this script to work in this fashion? Many thanks for your help!

https://msdn.microsoft.com/en-us/library/ms345166(v=sql.110).aspx?cs-save-lang=1&cs-lang=csharp#code-snippet-1

Best,
Ben