Check whether worksheet is protected when no password has been specified

Question

I have not been able to find any way to check whether an Excel Worksheet is in protected mode when a password hasn't been specified. I'm working with Office 2013 using the Excel Interop Assemblies.

If there is a password, you can check the HasPassword property, but when there is no password it does not appear that there is any method to determine whether the worksheet is currently protected.

I would also accept an event-based approach if there's any way to determine when the user selects to "Unprotect" the worksheet. The trouble right now is that when they do that, I don't know it's unprotected, and I can't respond appropriately.

Any ideas would be greatly appreciated, thanks!

Answer 1

为此，您可以尝试在没有密码的情况下取消保护工作表并在检查ProtectContents属性后捕获错误。