Stopping a Worksheet from being Moved or Copied

Matthew notes that a user can rather easily right-click on a worksheet tab and thereby move or copy a worksheet to another workbook. He is looking for a way to prevent this behavior; he needs a way to stop a user from making a copy of a worksheet or moving it.

This is harder than one would, at first, think. The standard approach is to protect the workbook. (Use the Protect Workbook tool on the Review tab of the ribbon.) Provided you protect the structure, Excel will disable the Move or Copy Sheet option.

Perhaps, for some reason, you don't want to protect the workbook. In that case you can create macro solutions that may do the trick for you. For instance, let's say that you have a macro in the code module for the worksheet itself. You could have that macro, as part of its functioning, check for the presence of some other data in the workbook or some system variable. (The data should be external to the worksheet, but still in the workbook.) If the presence is detected, then everything functions as you would want.

If, however, the user copies or moves the worksheet to another workbook, then obviously the other data or variable will not be there. If your macro (which was moved with the worksheet) doesn't detect the required data, then the macro could do whatever action you feel is appropriate, including deleting the worksheet.

A different macro-based approach would be to utilize two events for the worksheet, in this manner:

Private Sub Worksheet_Activate()
    ThisWorkbook.Protect "Hello"
End Sub

Private Sub Worksheet_Deactivate()
    ThisWorkbook.Unprotect "Hello"
End Sub

These two event handlers simply protect the workbook whenever the worksheet is selected and, conversely, unprotect it when a different worksheet is selected. Why do this? For the reason mentioned earlier—protecting the workbook can turn off the ability to move or copy worksheets. Because the user would always need to select the worksheet before copying or moving, the acts are disabled because the event handlers kick into play.

Remember, though, that if your objective is to stop the user from copying the data and/or formulas on the worksheet, you need to think beyond the user possibly copying or moving the worksheet. The user can always copy cell contents from the worksheet to a different worksheet, which might defeat what you are trying to do.

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