Highlight Cell when Row data changes from previous Row

[3gswish]

Hi everyone,

I have some very basic scripting skills but they don't yet translate well to VBA so would very much appreciate the benefit of your knowledge.

I have a spreadsheet with over 6k rows, each with over 30 columns.

My focus is in 2 columns. ColumnA is formatted as General, ColumnB as Number.

ColumnA	ColumnB
05255088-0f15-48f1-a65e-affb6d583d35	1373064224475
05255088-0f15-48f1-a65e-affb6d583d35	1373064224475
05384219-f4ad-44de-9efc-d6526ad16941	1373064223701
05384219-f4ad-44de-9efc-d6526ad16941	1373064223701
0539a867-1272-462d-ab34-fe3af4d0aa8b	1373064221218
0539a867-1272-462d-ab34-fe3af4d0aa8b	1373064221218
0539a867-1272-462d-ab34-fe3af4d0aa8b	1373064221218
0539a867-1272-462d-ab34-fe3af4d0aa8b	1373064221218

<tbody>
</tbody>

I need your assistance with VBA code that will Fill the cell in ColumnB if it changes within the same ColumnA data.


So the output would end up like this. (Although the cell would be filled, not the text turned red)

05255088-0f15-48f1-a65e-affb6d583d35	1373064224475
05255088-0f15-48f1-a65e-affb6d583d35	1373064224475
05384219-f4ad-44de-9efc-d6526ad16941	1373064223701
05384219-f4ad-44de-9efc-d6526ad16941	12345
0539a867-1272-462d-ab34-fe3af4d0aa8b	1373064221218
0539a867-1272-462d-ab34-fe3af4d0aa8b	1373064221218
0539a867-1272-462d-ab34-fe3af4d0aa8b	9876543
0539a867-1272-462d-ab34-fe3af4d0aa8b	9876543

<tbody>
</tbody>

So it's pretty basic. If we simply remember the first ColumnA and ColumnB data, go to the next row, if ColumnA is the same, then ColumnB should be the same. If it's not, then fill with red, go to the next row, repeat. if ColumnA changes, remember the new pair, go to the next row and compare again.


I've thought about this from a scripting perspective, and imagine that something like this would do the job:

sub FindBadTermID ()
     Dim row As Integer
     Dim dataA as string, dataB as string
     Set row = 2

     newColumnALoop
          Set dataA = A(row), dataB=B(row)                         # Get the first pair in a new ColumnA group
          Set row=row+1
               testColunBLoop
                  if A(row) = Blank, end
                  if A(row) != dataA, goto newColumnALoop     # If it's a new ColumnA group, go back and get first pair
                  if B(row) != dataB, fill B(row)=red                # If ColumnB is different that ColumnB of the first pair, make the cell red
                  Set row=row+1
                  goto testColumnBLoop
   
End Sub

I've gotten a start on changing the script to VBA, but am now strugging. Would you please take a look and give me your thoughts and code suggestions?

Thank you very much!

 

[3gswish]

Wow, Thank you.

 

[hiker95]

3gswish,

There is a lot of good information in the list.

You are very welcome. Glad I could help again.