Concatenate multiple ranges using vba - excel

Question

I have a number of ranges to concatenate independently and put the values of the concatenated ranges into different cells.
I want to:
concatenate values in Range A1:A10 and put the result in F1
then concatenate the Range B1:B10 and put the result in F2
then concatenate the Range C1:C10 and put the result in F3 etc.
The following macro concatenates range A1:A10 and then puts the results into F1 (which is what I want). However it also stores the information from the first concatenation into memory so that when it does the next concatenation, in cell F2 I get the concatenated results of F1 and F2 joined.
Sub concatenate()
Dim x As String
Dim Y As String
For m = 2 To 5
Y = Worksheets("Variables").Cells(m, 5).Value
'Above essentially has the range information e.g. a1:a10 in sheet variables
For Each Cell In Range("" & Y & "") 'i.e. range A1:A10
If Cell.Value = "" Then GoTo Line1 'this tells the macro to continue until a blank cell is reached
x = x & Cell.Value & "," 'this provides the concatenated cell value
Next
Line1:
ActiveCell.Value = x
ActiveCell.Offset(1, 0).Select
Next m
End Sub

Answer 1

Here is my ConcatenateRange. It allows you to add a seperator if you please. It is optimized to handle large ranges since it works by dumping the data in a variant array and working with it within VBA.
You would use it like this:
=ConcatenateRange(A1:A10)
The code:
Function ConcatenateRange(ByVal cell_range As range, _
Optional ByVal seperator As String) As String
Dim newString As String
Dim cellArray As Variant
Dim i As Long, j As Long
cellArray = cell_range.Value
For i = 1 To UBound(cellArray, 1)
For j = 1 To UBound(cellArray, 2)
If Len(cellArray(i, j)) <> 0 Then
newString = newString & (seperator & cellArray(i, j))
End If
Next
Next
If Len(newString) <> 0 Then
newString = Right$(newString, (Len(newString) - Len(seperator)))
End If
ConcatenateRange = newString
End Function

Answer 2

... I would do this very differently... Why not create a function along the lines of:
Function ConcatMe(Rng As Range) As String
Dim cl As Range
ConcatMe = ""
For Each cl In Rng
ConcatMe = ConcatMe & cl.Text
Next cl
End Function
And then just, for example, set F1 = ConcatMe(A1:A10) or, then write code to assign the function to the cells you want...
Or, as #KazJaw mentioned in his comment, just set x="" before re-looping.
Hope this helps

Answer 3

it is similar to the idea posted here already. However, I use a for each loop instead of an array setup with nested for loops.
Function ConcRange(ByRef myRange As Range, Optional ByVal Seperator As String = "")
ConcRange = vbNullString
Dim rngCell As Range
For Each rngCell In myRange
If ConcRange = vbNullString Then
If Not rngCell.Value = vbNullString Then
ConcRange = CStr(rngCell.Value)
End If
Else
If Not rngCell.Value = vbNullString Then
ConcRange = ConcRange & Seperator & CStr(rngCell.Value)
End If
End If
Next rngCell
End Function
This, I suppose would be faster than the array set up, as a new array is not created each time this function runs.

Answer 4

Right before Next m insert simple statement: x="" – KazimierzJawor Apr 8 '13 at 20:43
took me several minutes to notice this answer was under comments :p

Answer 5

Thanks for everything guys, for my purpose I have modified your suggestions and amended my code as it didn't quite fit into a neat function as I needed it to be more dynamic. See my code below. It does exactly what I need.
Sub concatenate()
Dim x As String
Dim Y As String
For Q = 1 To 10 'This provides a column reference to concatenate - Outer For statement
For T = 1 To 10 'This provides a rows reference to concatenate - Inner for statement
For Each Cell In Cells(T, Q) 'provides rows and column reference
If Cell.Value = "" Then GoTo Line1 'this tells the macro to continue until a blank cell is reached
x = x & Cell.Value & "," 'This provides the concatenated cell value and comma separator
Next ' this loops the range
Next T 'This is the inner loop which dynamically changes the number of rows to loop until a blank cell is reached
Line1:
On Error GoTo Terminate 'Terminates if there are less columns (max 10) to concatenate
ActiveCell.Value = Mid(x, 1, Len(x) - 1) 'This basically removes the last comma from the last concatenated cell e.g. you might get for a range 2,3,4, << this formula removes the last comma to
'give 2,3,4
ActiveCell.Offset(1, 0).Select 'Once the concatenated result is pasted into the cell this moves down to the next cell, e.g. from F1 to F2
x = "" 'The all important, clears x value after finishing concatenation for a range before moving on to another column and range
Next Q 'After one range is done the second column loop kicks in to tell the macro to move to the next column and begin concatenation range again
Terminate: 'error handler
End Sub

Answer 6

#Issun's solution doesn't accept output from a worksheet array formula as the argument for the 'cell_range' parameter. But a slight modification to #Issun's code fixes this. I also added a check that ignores each cell whose value is FALSE.
Function ConcatenateRange( _
ByVal cellArray As Variant, _
Optional ByVal seperator As String _
) As String
Dim cell As Range
Dim newString As String
Dim i As Long, j As Long
For i = 1 To UBound(cellArray, 1)
For j = 1 To UBound(cellArray, 2)
If Len(cellArray(i, j)) <> 0 Then
If (cellArray(i, j) <> False) Then
newString = newString & (seperator & cellArray(i, j))
End If
End If
Next
Next
If Len(newString) <> 0 Then
newString = Right$(newString, (Len(newString) - Len(seperator)))
End If
ConcatenateRange = newString
End Function
For example:
A B (<COL vROW)
------ ------ -----------------
one 1 3
two 1 4
three 2 5
four 2 6
Enter into cell C1 the formula below and press CTRL+ENTER to store the formula as an array formula:
{=ConcatenateRange(IF(B3:B6=1,A3:A6),CHAR(10))}

Answer 7

I was looking further to see if there is a better way of writing concatenate function and found this. It seems that we all have the same working principle for the function. So its ok.
But my function is different that it can take multiple parameters, in combination of ranges, texts and numbers.
I assume that a delimiter is mandatory, so if i don't need it i just put "" as the last parameter).
I also assume that blank cells are not to be skipped. That's the reason why i want the function to take multiple parameters, so i can easily omit those that that i don't want in the concatenation.
Example of use:
=JoinText(A1:D2,F1:I2,K1:L1,";")
You can also use together text and number among the parameters:
=JoinText(A1:D2,123,F1:I2,K1:L1,"PQR",";")
I'd love to hear any comments or suggestions where it can be improved.
Here is the code.
Public Function JoinText(ParamArray Parameters() As Variant) As String
Dim p As Integer, c As Integer, Delim As String
Delim = Parameters(UBound(Parameters))
For p = 0 To UBound(Parameters) - 1
If TypeName(Parameters(p)) = "Range" Then
For c = 1 To Parameters(p).Count
JoinText = JoinText & Delim & Parameters(p)(c)
Next c
Else
JoinText = JoinText & Delim & Parameters(p)
End If
Next p
JoinText = Replace(JoinText, Delim, "", , 1, vbBinaryCompare)
End Function

Answer 8

Function ConcatenateRange to concatenate all cells in range if they are not empty and empty "" string.
Function ConcatenateRange(cellRange As Range, Optional Delimiter As String) As String
Dim cel As Range, conStr As String
conStr = ""
If Delimiter <> "" Then
For Each cel In cellRange
If VarType(cel) <> vbEmpty And Trim(cel) <> "" Then conStr = conStr & cel & Delimiter
Next
ConcatenateRange = Left(conStr, Len(conStr) - Len(Delimiter))
Else
For Each cel In cellRange
If VarType(cel) <> vbEmpty And Trim(cel) <> "" Then conStr = conStr & cel
Next
ConcatenateRange = conStr
End If
End Function

Answer 9

Its very simple brother, Look out of the Excel. No need for all cumbersome formula or VBA.
Just copy all the cells that you need to concatenate and paste it in the notepad. Now just select the space between the lines/columns (it's a TAB space actually) and find and replace it.. Done.. All cells are concatenated. Now just copy and paste it in the column and just verify.. Thats it :) Enjoy.
I suggest you to use Notepad++ for this :) Koodos
Vimarsh
Ph. D. Plant Biotech.
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