How to use a StreamReader to read....

[lmdubois]

How do I use a StreamReader to read the data (from a text file), parse it, and place it in a two dimensional array??

The data:

0,710,887,1130,525
710,0,1510,1610,515
887,1510,0,454,1070
1130,1610,454,0,1110
525,515,1070,1110,0

Note: the first row of data contains the distances from location1 to all five locations, the second row of data contains the distances from location2 to all five locations, and so on.

[.paul.]

using a streamreader:

Dim fileName As String = "filename.txt"
Dim sr As New IO.StreamReader(fileName)
Dim linesCount As Integer = sr.ReadToEnd.Split(New String() {Environment.NewLine}, StringSplitOptions.RemoveEmptyEntries).Count
sr = New IO.StreamReader(fileName)
Dim array2D(linesCount - 1, 4) As Integer
For l As Integer = 0 To linesCount - 1
    Dim fields() As String = sr.ReadLine.Split(","c)
    For x As Integer = 0 To fields.GetUpperBound(0)
        array2D(l, x) = CInt(fields(x))
    Next
Next

[AceInfinity]

using a streamreader:

Dim fileName As String = "filename.txt"
Dim sr As New IO.StreamReader(fileName)
Dim linesCount As Integer = sr.ReadToEnd.Split(New String() {Environment.NewLine}, StringSplitOptions.RemoveEmptyEntries).Count
sr = New IO.StreamReader(fileName)
Dim array2D(linesCount - 1, 4) As Integer
For l As Integer = 0 To linesCount - 1
    Dim fields() As String = sr.ReadLine.Split(","c)
    For x As Integer = 0 To fields.GetUpperBound(0)
        array2D(l, x) = CInt(fields(x))
    Next
Next

Remember to close/dispose of your StreamReader as well

I would have just made use of the Using keyword for that.