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Imports System
 
Public Class Test
	Public Shared Sub Main()
		Console.WriteLine(GetColumnNumber("B"))
	End Sub
 
	Public Shared Function GetColumnNumber(name As String) As Integer
		Dim number As Integer = 0
		Dim pow As Integer = 1
		For i As Integer = name.Length - 1 To 0 Step -1
			number += (name(i) - "A"C + 1) * pow
			pow *= 26
		Next
 
		Return number
	End Function
End Class

Visual Basic.Net Compiler version 0.0.0.5914 (Mono 2.4.2 - r)
Copyright (C) 2004-2008 Rolf Bjarne Kvinge. All rights reserved.


/home/1fjYeN/prog.vb (12,32) : Error VBNC30452: Operator '-' is not defined for the types 'System.Char' and 'System.Char'.
/home/1fjYeN/prog.vb (12,32) : Error VBNC30452: Operator '-' is not defined for the types 'Char' and 'Char'.
There were 2 errors and 0 warnings.
Compilation took 00:00:00.9433080

Standard output is empty