Concatenate Unique Values - Minor VBA issue

Dan5977

Board Regular
Joined
Aug 7, 2008
Messages
108
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.
 

Excel Facts

Which lookup functions find a value equal or greater than the lookup value?
MATCH uses -1 to find larger value (lookup table must be sorted ZA). XLOOKUP uses 1 to find values greater and does not need to be sorted.
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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