Concatenate columns D and C using macro [closed] - excel

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Could you please help in concatenating cells using Excel 2010 macro. I have columns A to E. I want to concatenate columns D and C in column F. Please note that I don't know the exact number of rows in column D and C but the macro should stop concatenating when there are no values in the said columns. Sample:
A B C D E F
0 Exist Echalas Gerald 25256 Gerald Echalas
....
Thank you.

Answer 1

Something like this (untested)
dim row as integer
row = 1
while(cells(row, 3) <> "" and cells(row, 4) <> ""
cells(row, 5) = cells(row, 3) & " " & and cells(row, 4)
row = row + 1
wend

Answer 2

Try this out, from MSDN, it has an example for going through each row.
http://support.microsoft.com/kb/213477
Their sample:
Sub ConcatColumns()
Do While ActiveCell <> "" 'Loops until the active cell is blank.
'The "&" must have a space on both sides or it will be
'treated as a variable type of long integer.
ActiveCell.Offset(0, 1).FormulaR1C1 = _
ActiveCell.Offset(0, -1) & " " & ActiveCell.Offset(0, 0)
ActiveCell.Offset(1, 0).Select
Loop
End Sub

Answer 3

This will combine values columns C, D to F as "D, C" regardless of gaps up to the last used row.
Sub CombineCols()
Dim oWS As Worksheet, lLastRow As Long, r As Long
Set oWS = ActiveSheet
lLastRow = oWS.Cells.SpecialCells(xlLastCell).Row
For r = 1 To lLastRow
' Combine if both C and D are not empty
If Len(oWS.Cells(r, 3)) > 0 And Len(oWS.Cells(r, 4)) > 0 Then
oWS.Cells(r, 6).Value = oWS.Cells(r, 4).Value & " " & oWS.Cells(r, 3).Value
End If
Next
End Sub
You can change the check condition so that it does not require both valid text is columns C and D to combine.
Tip: You can reference the column of a cell with long number - starting from A=1.

Answer 4

Lets say u r in sheet1
Sub test()
Dim r As Range
Dim lr As Integer
With Sheets("Sheet1")
lr = .Range("C500000").End(xlUp).Row
For Each r In .Range("F2:F" & lr)
r.Value = r.Offset(0, -2).Value & " " & r.Offset(0, -3).Value
Next r
End With
End Sub
Tested

Answer 5

Seems like a good job for a formula
Sub ConcatName()
With ActiveSheet
.Range("F1").Resize(.Range("A1").CurrentRegion.Rows.Count, 1).FormulaR1C1 = "=RC[-2]&"" ""&RC[-3]"
End With
End Sub
The CurrentRegion property gets the blob of data around A1, extends F1 by the number of rows, then inserts a formula that concatenates.

Answer 6

The concatenate function is quite easy to implement in a Macro. All you do is place an '&' between objects you would like to concatenate. In your case is would look like this:
Range("F1").Value = Range("C1").Value & " " & Range("D1")
*Note that I added a space between the C1 and D1 values
Next you are going to need a loop to iterate through your data. There are several good methods for controlling when the loop will stop.
Method #1
The simplest method is to not worry about when the macro stops. This may work in your case be concatenating nothing with nothing yields nothing.
loop
Range("F1").Value = Range("C1").Value & " " & Range("D1")
next
Method #2
End the loop when a specified column runs out of data. In your case this could look like:
While(Range("A" & i).value <> "")
Range("F1").Value = Range("C1").Value & " " & Range("D1")
i = i + 1
Wend
Method #3
Excel has a function (.count) that will return the number of entries in a column (will not work correctly if there are gaps). Use the value return along with a for loop to stop the loop when there is no more data.