How to use IO.File.WriteAllLines(FileName, OutputArray) in VB - vb.net

Question

When using this code in VB I get the error:
System.InvalidCastException: 'Unable to cast object of type 'System.Collections.ArrayList' to type 'System.Collections.Generic.IEnumerable`1[System.String]'.'
Can someone please give me the correct usage?
Full code:
Public Class Form1
Dim OutputArray As New ArrayList
Dim i = 0
Dim Registrationdata
Dim FileName As String = Application.StartupPath & "\Output.txt"
Private Sub IssueTicket_Click(sender As Object, e As EventArgs) Handles IssueTicket.Click
Dim Speed As Integer
If Integer.TryParse(Speedbox.Text(), Speed) Then
If Speed <= 20 Or Speed > 300 Then
MessageBox.Show("Please enter a valid speed between 20-200")
ElseIf Registrationbox.Text() = Nothing Or Not Registrationbox.Text() Like "???? ???" Then
MessageBox.Show("Please enter a vaild registration to continue e.g '1234 123'.")
ElseIf Not IDBox.Text().StartsWith("9") Or Not IDBox.TextLength = 6 Or Not IsNumeric(IDBox.Text()) Then
MessageBox.Show("Please enter a valid OfficerID starting with '9' and is 6 numbers long.")
Else
OutputArray.Add(Speed)
OutputArray.Add(Registrationbox.Text())
OutputArray.Add(IDBox.Text())
MessageBox.Show("Ticket saved")
i += 1
End If
End If
End Sub
Private Sub SaveToFile_Click(sender As Object, e As EventArgs) Handles SaveToFile.Click
Registrationbox.Text() = Registrationdata
IO.File.WriteAllLines(FileName, OutputArray)
End Sub
End Class

Answer 1

To solve your problem quickly you could change your code to:
Dim OutputArray As New List(Of String)
...
OutputArray.Add(Speed.ToString())
OutputArray.Add(Registrationbox.Text())
OutputArray.Add(IDBox.Text())
Problem with your code is that ArrayList doesn't implement an IEnumerable interface, while List does and so File.WriteAllText works; but List(Of String) wants all the items to be of type string, so you have to convert your int to string before pushing it into the list.