excel - Data Validation to Include Comma Character

Question

I am using the following short macro to assign Data Validation as a list of characters:

Sub DVList()
    With ActiveCell.Validation
        .Delete
        .Add Type:=xlValidateList, AlertStyle:=xlValidAlertStop, Operator:= _
        xlBetween, Formula1:="a,b,c,d"
        .IgnoreBlank = True
    End With
End Sub

The macro works.

I want to modify the macro to include the comma character in the list. I don't see how to do this because the comma is the list separator.

Am I stuck having to use worksheet cells to build the list??

Answer 1

A far as I could test, you can't escape , in list.

But you can reference a range. You can build a range (in, eg, a hidden sheet), fill cells with all possibilities and make Formula1 := "=HiddenSheet!A1:A10.