Compare 4 columns in one excel sheet using vba - vba

Question

I need your help please, I have 4 columns in an excel sheet and I need to compare them 2 by 2 i will explain to you :
In column A i have users(user1,user2,user3 ...)
In column B i have functionalities ( fonc1, fonc2, fonc3.....)
In column C i have users(user1,user2,user3 ...)
In column D i have functionalities ( fonc1, fonc2, fonc3.....)
The columns C and D are a new version of columns A and B in the columns C and D the users may change order or change functionalities .
When i execute my code i put the result in other new columns:
column F where i have the users
column G where i put the Deleted_functionalities
column H where i put the New_functionalities
The first problem is that the code doesn't get the users it get only the new and deleted functionalities. The second problem is that when the column A is more than column C where the users are stocked the code doesn't work. Can you please help me to find a solution? Thank you in advance .
Here is my code and the file I am working on :
Private Sub CommandButton2_Click()
Dim rngCell As Range
For Each rngCell In Range("B2:B2000")
If WorksheetFunction.CountIf(Range("D2:D2000"), rngCell) = 0 Then
Range("G" & Rows.Count).End(xlUp).Offset(1) = rngCell
End If
Next
For Each rngCell In Range("D2:D2000")
If WorksheetFunction.CountIf(Range("B2:B2000"), rngCell) = 0 Then
Range("H" & Rows.Count).End(xlUp).Offset(1) = rngCell
End If
Next
End Sub
and this is the excel file
http://www.cjoint.com/c/FCxnwjp22rv

Answer 1

try this
Private Sub CommandButton2_Click()
Dim ws As Worksheet
Dim cell As Range, funcCell As Range
Dim oldUserRng As Range, newUserRng As Range, reportRng As Range
Dim iReport As Long
Dim oldFunc As String, newFunc As String
Set ws = ThisWorkbook.Worksheets("users") '<== adapt it to your needs
With ws
Set oldUserRng = .Columns(1).Resize(.Rows.Count - 1).Offset(1).SpecialCells(xlCellTypeConstants, xlTextValues)
Set newUserRng = .Columns(3).Resize(.Rows.Count - 1).Offset(1).SpecialCells(xlCellTypeConstants, xlTextValues)
Set reportRng = .Range("F1:I1") '<== added one report column to account for unchanged functions
End With
reportRng.Value = Array("user", "deleted", "new", "same")
iReport = 1
For Each cell In oldUserRng
With cell
oldFunc = .Offset(, 1).Value
Set funcCell = FindAndOffset(newUserRng, .Value, 1)
If funcCell Is Nothing Then
reportRng.Offset(iReport) = Array(.Value, "", "", oldFunc)
Else
newFunc = funcCell.Value
If newFunc = oldFunc Then
reportRng.Offset(iReport) = Array(.Value, "", "", newFunc)
Else
reportRng.Offset(iReport) = Array(.Value, oldFunc, newFunc, "")
End If
End If
iReport = iReport + 1
End With
Next cell
For Each cell In newUserRng
With cell
Set funcCell = FindAndOffset(oldUserRng, .Value, 1)
If funcCell Is Nothing Then
reportRng.Offset(iReport) = Array(.Value, "", .Offset(, 1).Value, "")
iReport = iReport + 1
End If
End With
Next cell
End Sub
Not so sure it does what you need.
you'd better provide screenshots of "before" and "after" scenarios.
BTW, is it safe to assume that both old and new user columns cannot hold duplicates (i.e.: two or more "userX" in column A and/or column C?)
But it does speed up thing considerably since it iterates only through non empty cells.

Answer 2

I hope I get what you want to achieve. Does the following solve your problem?
Private Sub CommandButton2_Click()
Dim rngCell As Range
For Each rngCell In Range("A2:A20000")
If WorksheetFunction.CountIf(Range("C2:C20000"), rngCell) > 0 Then
Range("F" & Rows.Count).End(xlUp).Offset(1) = rngCell
Range("F" & Rows.Count).End(xlUp).Offset(0, 1) = rngCell.Offset(0, 1).Value
Range("F" & Rows.Count).End(xlUp).Offset(0, 2) = Application.WorksheetFunction.VLookup(rngCell.Value, Range("C2:D20000"), 2, 0)
ElseIf (rngCell <> "") Then
Range("F" & Rows.Count).End(xlUp).Offset(1) = rngCell
Range("F" & Rows.Count).End(xlUp).Offset(0, 1) = rngCell.Offset(0, 1).Value
End If
Next
For Each rngCell In Range("C2:C20000")
If (WorksheetFunction.CountIf(Range("A2:A20000"), rngCell) = 0 And rngCell <> "") Then
Range("F" & Rows.Count).End(xlUp).Offset(1) = rngCell
Range("F" & Rows.Count).End(xlUp).Offset(0, 2) = rngCell.Offset(0, 1).Value
End If
Next
End Sub
A user is only included in column F when he appears both in columns A and C.In case you want to include every user that is either in column A or C the code has to be altered.