Array list in vb.net

Arraylist is one of the most flexible data structure from list, Array List contains a simple list of values and very easily we can add, insert, delete, and view etc. to do with ArrayList. It is very flexible because we can add without any size information, which is it grow dynamically and also shrink.
Important list of arraylist
Add : Add an Item in an ArrayList
Insert : Insert an Item in a specified position in an ArrayList
Remove : Remove an Item from ArrayList
RemoveAt: remeove an item from a specified position
Sort : Sort Items in an ArrayList
How to add an Item in an ArrayList ?
Syntax : ArrayList.add(Item)
Item : The Item to be add the ArrayList
Dim ItemList As New ArrayList()
ItemList.Add("Item4")
How to Insert an Item in an ArrayList ?
Syntax : ArrayList.insert(index,item)
index : The position of the item in an ArrayList
Item : The Item to be add the ArrayList
ItemList.Insert(3, "item6")
How to remove an item from arrayList ?
Syntax : ArrayList.Remove(item)
Item : The Item to be add the ArrayList
ItemList.Remove("item2")
How to remove an item in a specified position from an ArrayList ?
Syntax : ArrayList.RemoveAt(index)
index : the position of an item to remove from an ArrayList
ItemList.RemoveAt(2)
How to sort ArrayList ?
Syntax : ArrayListSort()
The following VB.NET source code shows some function in ArrayList

Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object,
        ByVal e As System.EventArgs) Handles Button1.Click
        Dim i As Integer
        Dim ItemList As New ArrayList()
        ItemList.Add("Item4")
        ItemList.Add("Item5")
        ItemList.Add("Item2")
        ItemList.Add("Item1")
        ItemList.Add("Item3")
        MsgBox("Shows Added Items")
        For i = 0 To ItemList.Count - 1
            MsgBox(ItemList.Item(i))
        Next
        'insert an item
        ItemList.Insert(3, "Item6")
        'sort itemms in an arraylist
        ItemList.Sort()
        'remove an item
        ItemList.Remove("Item1")
        'remove item from a specified index
        ItemList.RemoveAt(3)
        MsgBox("Shows final Items the ArrayList")
        For i = 0 To ItemList.Count - 1
            MsgBox(ItemList.Item(i))
        Next
    End Sub
End Class