how to add excel sheetchange event to c#

Question

How to add the following excel vba sheetchange event to c#

Private Sub Worksheet_Change(ByVal 

Target As Range)

If Not Intersect(Target, Range("A1", 

"A101")) Is Nothing Then

        Dim CellAddress, address, 

position, formula1 As String

        CellAddress = Target.address

            If Range(CellAddress).Value 

<> "" Then

            address = CellAddress

            position = Mid(address, 4, 

3)

                Range("B" & 

position).Select

                Range("B" & 

position).Clear

                With 

Selection.Validation

                    .Delete

                     .Add 

Type:=xlValidateList, 

AlertStyle:=xlValidAlertStop, 

Operator:= _

        xlBetween, 

formula1:="=indirect(A" & position & 

")"

                    .IgnoreBlank = True

                    .InCellDropdown = 

True

                    .InputTitle = ""

                    .ErrorTitle = ""

                    .InputMessage = ""

                    .ErrorMessage = ""

                    .ShowInput = True

                    .ShowError = True

                End With

            End If

    End If

End Sub