Hi I'm stuck on a project using VB 2005 express edition. I'm having trouble reading in data into my code from a Text File.
I'm using an openFileDialog so the user can select a file to open. The opened file will contain 3 columns and an unknown number of rows. I want to read the data from the file calling the first colum x, second y, and third z. I then want to plot a graph of the raw data (x,y). Before performing simple mathematical equations on each row of x,y and z and sum the answers.
Unfortunately so far I can't get past inputing the data into the program, so I'd be very grateful for any help you can give me.

Public Class Form1
Dim data(i, 2) As String
Dim g, filename As String
Dim i, numlines, lines, As Integer
Dim x(i), y(i), s(i) As Double

Private Sub OpenFileBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenFileBtn.Click
If OpenFileDialog1.ShowDialog() = Windows.Forms.DialogResult.OK Then 'opens file of users choice if cancel not pressed
FileOpen(1, OpenFileDialog1.FileName, OpenMode.Input)
lines = getNumLines(1)
FileClose(1)

FileOpen(1, OpenFileDialog1.FileName, OpenMode.Input)
ReDim data(lines, 2)
For i = 0 To i = lines - 1

Input(1, data(i, 0))
Input(1, data(i, 1))
Input(1, data(i, 2))
x(i) = Val(data(i, 0))
y(i) = Val(data(i, 1))
s(i) = Val(data(i, 2))
Graph1.Plotxy(x(i), y(i))
Next i
FileClose(1)
End If
End Sub

Public Function getNumLines(ByVal fileName As Integer) As Integer

Dim numLines As Integer

numLines = 0

While Not (EOF(1))
numLines = numLines + 1 'counts number of rows in the file
Input(1, g)
End While

Return numLines 'return the number of lines found

End Function
End Class