Concatenate Unique Values - Minor VBA issue

Dan5977

Board Regular
Joined
Aug 7, 2008
Messages
111
Office Version
  1. 2010
Hi all,

I am having a minor issue with a function for concatenating a range into a comma seperated list. The function is as follows:

Code:
Function ConcatUniq(xRg As Range, xChar As String) As String
    Dim xCell As Range
    Dim xDic As Object
    Set xDic = CreateObject("Scripting.Dictionary")
    For Each xCell In xRg
        xDic(xCell.Value) = Empty
    Next
    ConcatUniq = Join$(xDic.Keys, xChar)
    Set xDic = Nothing
End Function

I then enter =ConcatUniq(finish,",") into the cell where I want the comma seperated list (finish is a named range).

This works really well apart from one minor issue. I am getting an extra comma after the first item in the list.
So it would say for example 'Black,,Yellow,Orange' instead of 'Black,Yellow,Orange'

As always, any help would be appreciated.
 

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See if this works:

Code:
Set xDic = CreateObject("Scripting.Dictionary")
For Each xCell In xRg
    s = Trim(xCell.Value)
    If Len(s) > 0 Then xDic(s) = xDic(s) + 1
Next xCell
ConcatUniq = Join$(xDic.keys, xChar)
 
Upvote 0
see if this does what you want
- adjusted to ignore EMPTY cells

Code:
Function ConcatUniq(xRg As Range, xChar As String) As String
    Dim xCell As Range
    Dim xDic As Object
    Set xDic = CreateObject("Scripting.Dictionary")
    For Each xCell In xRg
        [COLOR=#b22222]If xCell <> "" Then xDic(xCell.Value) = Empty[/COLOR]
    Next
    ConcatUniq = Join$(xDic.Keys, xChar)
    Set xDic = Nothing
End Function


If you have Excel 365 (or possibly Excel 2019 ??) function TEXJOIN returns what you want
(test the function - it either returns #NAME? error or the correct answer! )
delimiter = ",", ignore empty cells = TRUE, Concatentate range F2:K2
=TEXTJOIN(",",TRUE,F2:K2)
 
Last edited:
Upvote 0
Textjoin wont do unique used like that which i guess is required going by the function name :)
 
Upvote 0
Both of those solutions work. Thank you very much :)

Unfortunately we are still stuck on Excel 2010! If we had Office365 I would probably have used the new UNIQUE function to create a unique list to refer to. Until then this works great thanks.
 
Upvote 0

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