Programmatically set Excel row properties using the Excel Interop

We have an Excel spreadsheet that is populated from data in a database using a program we developed in C# .

Everything works fine but now we need to be able to store a key identifier (that we format and create) for each row.

Is there a way to apply this key "value" to a property at the row level so the users do not see our key value anywhere in the spreadsheet?  or via some other method?

We want to avoid using a hidden column since there is a chance the user could make the column visible, thus potentially changing this key value.
Who is Participating?
terencinoConnect With a Mentor Commented:
Sure I put the key values in A2:A21 in this sheet, and protected the sheet, just recorded the macro as I did it. Can't see, modify or delete any cell in that range. There is no password so you can just unprotect it and click on the cell to see what is in there

Sub Protection()
    Cells.Locked = False
    Cells.FormulaHidden = False
    Range("A2:A21").Locked = True
    Range("A2:A21").FormulaHidden = True
    Range("A2:A21").NumberFormat = ";;;"
    ActiveSheet.Protect DrawingObjects:=False, Contents:=True, Scenarios:= _
        False, AllowFormattingCells:=True, AllowFormattingColumns:=True, _
        AllowFormattingRows:=True, AllowInsertingColumns:=True, AllowInsertingRows _
        :=True, AllowInsertingHyperlinks:=True, AllowDeletingColumns:=True, _
        AllowDeletingRows:=True, AllowSorting:=True, AllowFiltering:=True, _
End Sub

Open in new window

Excel doesn't have anything at the row level that might suit I'm afraid, would be great if it did. A couple of other options:
1. Put the key value in one of the columns, set cell protection only for that range to locked and hidden, format as ;;;  then use sheet-level protection only for that range and possibly a password to prevent the key value being both seen and deleted.
2. Put the key value in a separate sheet, linked to the relevant row on the main data sheet, then make that key sheet VeryHidden
3. Add the key value to a comment in the cells on one column, then hide the comments. This is less obvious than a hidden column, and harder to change en masse, but not as secure.
Hope that helps
jkanisutAuthor Commented:
Do you have any sample code for #1?
jkanisutAuthor Commented:
Thanks... I'll try out the solution this week and let you know.
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.