Add value entered in cell to another cell in the same column - excel

Question

I want to add the value entered in a cell in a certain row to another cell in that same column
Example:
If I enter a value in cell B12, add that value to the value in B17.
If I enter a value in cell D12, add that value to the value in D17 and so on.
Private Sub Worksheet_Change(ByVal Target As Range)
Application.EnableEvents = False
If Target.Row = 12 Then
Range(Target.Column & 17).Value = Range(Target.Column & 17).Value + Target.Value
End If
Application.EnableEvents = True
End Sub
Problem is, that Target.Column is a integer and not a Character. So the Code will not run, since Range expects a char as column and not an integer (at least that is what I think the debugger wants to tell me).
Greetings,
Maverick

Answer 1

The presumption that Column must be a letter is mistaken. To the contrary, Column is a number which, for users' convenience (not Excel's) is displayed as a letter in some usages. Therefore this code will work.
Private Sub Worksheet_Change(ByVal Target As Range)
With Target
If .Row = 12 Then
Application.EnableEvents = False
Cells(17, .Column).Value = .Value
Application.EnableEvents = True
End If
End With
End Sub
A rule you might go by is to address individual cells using the syntax for addressing cells, which is Cells([Row], [Column]) and use range names only when addressing ranges comprising more than one cell. For this rule you need to understand that ...
When addressing cells, you can use their number or designation. Cells(3, 2) may also be written as Cells(3, "B") but the letter is more complicated and can't be used in calculations.
All ranges have names. But in the absence of a given name VBA will concatenate a name from its first and last cells, like Range("A1:D4"). You can further complicate this concatenation by interjecting other numbers into the name creation (such as you tried).
VBA defines a range by its first and last cells. Therefore VBA's preferred way to address Range("A1:D4") is Range(Cells(1, 1), Cells(4, 4)). That looks effusive but if you are in a position where you have to calculate any of the coordinates you will find that it's the simplest method.