Display The Next Row From A .txt File?

This is my code so far. I have 4 text boxes, 1 for the Student Name, and then 1 for each of their 3 exam scores.My .txt file only has four rows in it:

John Smith|81|84|91
Leslie McAndrew|79|86|86
Roger Rozario|74|71|78
Andrea Benton|67|65|84

I am able to display the last row of the txt file in the proper text boxes with the following code, but I cannot figure out how to display a different row when I click the next button.

Public Class Form1
Dim FILE_NAME As String = "C:\Students\StudentInfo.txt"
Dim TextLine As String

[code].....