C# Split String Is Not Working

C# Split String Is Not Working
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Please Help. I wrote a C# program that reads code one line at a time. Each line has data seperated by tabs.

Here is what my C# code is supposed to do. The line is supposed to be split into a string array by using the "Split" string methodIt is supposed to be spit read in text one line at a time and I use the "Split" method to group the line according to the tab character.

But, as this screen shot shows, it does not work. Any idea why?

http://www.antionline.com/images/ieimages/2012/08/1.png