Mega Code Archive
Use LastIndexOfAny to find first occurrence of character in array
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Module Tester
Sub Main()
Dim letters As String = "abcdefghijklmabcdefghijklm"
Dim searchLetters As Char() = New Char() {"c"c, "a"c, "$"c}
Console.WriteLine("Last occurrence of ""c""," & _
" ""a"" or ""$"" is located at " & _
letters.LastIndexOfAny(searchLetters))
Console.WriteLine("Last occurrence of ""c"", ""a"" or " & _
"""$"" is located at " & _
letters.LastIndexOfAny(searchLetters, 1))
Console.WriteLine("Last occurrence of ""c"", ""a"" or " & _
"""$"" is located at " & _
letters.LastIndexOfAny(searchLetters, 25, 5))
End Sub
End Module
Last occurrence of "c", "a" or "$" is located at 15
Last occurrence of "c", "a" or "$" is located at 0
Last occurrence of "c", "a" or "$" is located at -1
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