Arrays (continued)

[andrew104]

I thought I would start a new thread to clean up a little bit. It's too confusing. I've got code now that takes the first three characters of each line and lists it in a listbox. But...

How do I put each line into an array? The suggestions Edenis suggested in the other thread don't work (Add and ToArray are not members of System.Array)

Any suggestions are appreciated! Here is my code...

Private strIDNumbers As ArrayList()
    Private intRecordcount As Integer = 0
 
    Private Sub OpenFileButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenFileButton.Click
        'determine if customers.txt exists
        If System.IO.File.Exists("customers.txt") = True Then
            'make the property labels visible
            Me.IDNumberLabel.Visible = True
            Me.NameLabel.Visible = True
            Me.CreditLimitLabel.Visible = True
            Me.BalanceDueLabel.Visible = True
            'open the text file
            Dim objStreamReader As System.IO.StreamReader
            Dim strLine As String
            objStreamReader = System.IO.File.OpenText("customers.txt")
            Do While objStreamReader.Read
                strLine = objStreamReader.ReadLine
 
                Dim strID As String, intLength As Integer
                intLength = Val(strLine.Length)
                strID = strLine.Remove(3, (intLength - 3))
                Me.IDListBox.Items.Add(strID)
                intRecordcount = intRecordcount + 1
            Loop
            Me.OpenFileButton.Enabled = False
            'customers.txt does not exist, stop
        Else
                MessageBox.Show("File does not exist!", "File not found", _
                MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
 
        End If
    End Sub