What is the easiest way to take two columns of data and convert to dictionary?

Question

I have a worksheet with data in columns A and B.

I am looking for a convenient way to take these columns and convert to dictionary where the cell in column A is the key and column B is the value, something like :

Dim dict as Dictionary
Set dict = CreateDictFromColumns("SheetName", "A", "B")

NOTE: I am already referencing the scripting dll.

Answer 1

You would need to loop, E.g.

Function CreateDictFromColumns(sheet As String, keyCol As String, valCol As String) As Dictionary
    Set CreateDictFromColumns = New Dictionary
    Dim rng As Range: Set rng = Sheets(sheet).Range(keyCol & ":" & valCol)
    Dim i As Long
    Dim lastCol As Long '// for non-adjacent ("A:ZZ")
    lastCol = rng.Columns.Count
    For i = 1 To rng.Rows.Count
        If (rng(i, 1).Value = "") Then Exit Function
        CreateDictFromColumns.Add rng(i, 1).Value, rng(i, lastCol).Value
    Next
End Function

This breaks on the first empty key value cell.