Option Strict On
Imports System.Collections
Public Class SortedStrings
Inherits CollectionBase
Public Function Add(ByVal value As String) As Integer
MyBase.List.Add(value)
Sort()
End Function
Default Public Property Item(ByVal index As Integer) As String
Get
Return DirectCast(MyBase.List.Item(index), String)
End Get
Set(ByVal value As String)
MyBase.List.Item(index) = value
End Set
End Property
Public Sub Sort
Dim sArr(Me.Count - 1) As String
Dim IColl As ICollection = Me
IColl.CopyTo(sArr,0)
Array.Sort(sArr)
Me.Clear
For Each s As String In sArr
Me.List.Add(s)
Next
End Sub
End Class
Public Module TestSortedStrings
Public Sub Main()
Dim sstrings As New SortedStrings()
sstrings.Add("D")
sstrings.Add("A")
sstrings.Add("C")
sstrings.Add("B")
sstrings.Add("E")
For Each sstring As String In sstrings
Console.WriteLine(sstring)
Next
End Sub
End Module
A
B
C
D
E