All three generic overloads of the Array.IndexOf method.
Imports System Public Class Example Public Shared Sub Main() Dim letters() As String = { "A","B","C","F","D","A","E" } Console.WriteLine() For Each letter As String In letters Console.WriteLine(letter) Next Console.WriteLine("Array.IndexOf(letters, ""A""): {0}", Array.IndexOf(letters, "A")) Console.WriteLine("Array.IndexOf(letters, ""A"", 3): {0}",Array.IndexOf(letters, "A", 3)) Console.WriteLine("Array.IndexOf(letters, ""A"", 2, 2): {0}", Array.IndexOf(letters, "A", 2, 2)) End Sub End Class