Loop through and copy paste values without repetition if conditions are met - excel

Question

Im trying to create a table that pulls data from my raw data if certain conditions are met. The code I currently have does not seem to be working.
Public Sub insert_rows()
Dim datasheet As Worksheet
Dim datasheet2 As Worksheet
Dim r As Long
Dim tableA As ListObject
Set tableA = Worksheets(Sheet7).ListObject(Preventable)
Set datasheet = Worksheets(Sheet7)
Set datasheet2 = Worksheets("Data")
With datasheet2
nr = Cells(Rows.Count, 1).End(x1up).Row
For r = 1 To nr
If Cells(r, 17) = "Y" Then
Cells(r, 16).Copy Destination:=Sheets("Sheet7").Range("B4")
End If
Next
End With
End Sub
Basically I have several worksheets and need to pull data from one of them to add to this table in another worksheet. My condition is if the Column in the raw data worksheet contains "Y", then pull cell values into the table of the other worksheet. An image below is an example of the data I want to copy and paste over:
As you can see, they are string values separated by "," and can contain duplicates.
I only want to add just the unique entries into the new table; with no repetition of cells. Anyway I could modify this code to suit those conditions?

Answer 1

You could try something like this:
Public Sub insert_rows()
Dim datasheet As Worksheet
Dim datasheet2 As Worksheet
Dim r As Long, i As Long, nr As Long
Dim tableStartingRow As Long, currenttableitem As Long
Dim stringvalues As Variant
Dim stringseparator As String
Dim valueexists As Boolean
tableStartingRow = 4
stringseparator = ","
Set datasheet = Worksheets("Sheet7")
Set datasheet2 = Worksheets("Data")
With datasheet
currenttableitem = .Cells(.Rows.Count, 2).End(xlUp).Row
End With
With datasheet2
nr = .Cells(.Rows.Count, 16).End(xlUp).Row
For r = 1 To nr
If .Cells(r, 17) = "Y" Then
If InStr(.Cells(r, 16), stringseparator) > 0 Then 'If value contains comma
stringvalues = Split(.Cells(r, 16), stringseparator)
For i = LBound(stringvalues) To UBound(stringvalues)
valueexists = False 'Reset boolean
For x = tableStartingRow To currenttableitem
If datasheet.Range("B" & x).Value = Trim(stringvalues(i)) Then
valueexists = True
Exit For
End If
Next x
If Not valueexists Then
currenttableitem = currenttableitem + 1
datasheet.Range("B" & currenttableitem).Value = Trim(stringvalues(i))
End If
Next i
Else
valueexists = False 'Reset boolean
For x = tableStartingRow To currenttableitem
If datasheet.Range("B" & x).Value = .Cells(r, 16).Value Then
valueexists = True
Exit For
End If
Next x
If Not valueexists Then
currenttableitem = currenttableitem + 1
datasheet.Range("B" & currenttableitem).Value = .Cells(r, 16).Value
End If
End If
End If
Next
End With
End Sub
This code will check each value of the cells and will split the contents by ",". Then compare with the content of the table to see if this value is already in there. In case it is not, it will be added, otherwise omitted.
Also, I notice the use of the Cells inside of a With statement. That was making a reference to the active worksheet. To make reference to the item in the With statement, you need to use .Cells
I hope this will help.