Public Function FormatMultiRowPK(ParamArray ValList() As Variant) As String
Build a lookup cache for unique values in the specified column(s)
Caching of primary key/unique value lookup
Build a lookup cache for unique values in the specified column(s)
Get the row index matching a (possibly multi column) unique value
Rebuild the unique value lookup cache after values have changed
Build a lookup cache for unique values in the specified column(s) The unique value can then be specified as a row parameter for the Item() method