Mega Code Archive
Find the index of the last occurrence of any character in the string is within another string
Imports System
Class Sample
Public Shared Sub Main()
Dim str As String = "this is a test."
Dim start As Integer
Dim at As Integer
Dim target As String = "is"
Dim anyOf As Char() = target.ToCharArray()
at = str.LastIndexOfAny(anyOf)
If at > - 1 Then
Console.Write(at)
Else
Console.Write("(not found)")
End If
End Sub
End Class