[2005] loop through arraylist [resolved]

this should be simple enough... what is the correct way to loop through an arraylist?

Code:

---

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim CorpGroups As ArrayList = Groups.GetGroupNums

        PrintValues(CorpGroups)

        With Me.DataGridView1
            .DataSource = CorpGroups
        End With

    End Sub

    Public Shared Sub PrintValues(ByVal myList As IEnumerable)
        Dim myEnumerator As System.Collections.IEnumerator = myList.GetEnumerator()

        While myEnumerator.MoveNext()
            Console.Write(ControlChars.Tab + "{0}", myEnumerator.Current)
        End While

        Console.WriteLine()

    End Sub

---

Console.Write outputs this:
GroupReportsFolderCreator.Groups

but the GridView has the correct info:

Code:

---

corp_num  group_num
123            1586
123            1587

---

What is the problem, and do you need to use the Enumerator?

i'm just trying to loop through the arraylist(both columns).

and do you need to use the Enumerator?
i'm open to anything at this point.

Don't use an enumerator explicitly. Enumerators exist mainly to facilitate the use of For Each loops. That means that you should use a For Each loop. Also, if each item in the ArrayList is an object with two properties then you must refer to those two properties to get their values.:

VB Code:

For Each item As Groups In myArrayList
    Console.WriteLine(item.CorpNum & ControlChars.Tab & item.GroupNum)
Next item

Also, you should generally avoid ArrayLists in VB 2005. If you want a collection of Groups objects then you should use a List(Of Groups). The Generic.List class is basically the same as an ArrayList but allows you to specify a type for the items when you declare it, making it strongly typed, unlike the ArrayList that will accept any objects.

thank you and i'm looking into the Generic.List.