protect excel sheet by password using OWC in C# - Exception from HRESULT: 0xE0040059 - Urgent

Question

0.00/5 (No votes)

See more:

I'm using OWC 11.0 in ASP.NET and C# to create excel file.
I need to protect/unprotect the sheet by a password. I tried to protect the sheet by following code.

string Password = "Password123";
object getPasswordFromUser =(object)Password;
xl.ActiveSheet.Protect(ref getPasswordFromUser, ref obj,
ref obj, ref obj, ref obj, ref obj, ref obj, ref obj, ref obj, ref obj,
ref obj, ref obj, ref obj, ref obj, ref objTrue, ref obj);But it throws an exception "Exception from HRESULT: 0xE0040059"

Kindly help me to resolve this issue. Code works well if I miss the password.

Posted 21-Jan-10 3:55am

nishithrajn

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

kode are · Answer 1 · 2010-01-27T06:21:00

I have been searching for an answer to the same problem. I have found (by experimentation) that if you use something like this:

using OWC = Microsoft.Office.Interop.Owc11;

Then the following:

OWC.Worksheet owcWorkSheet = (OWC.Worksheet)xl.Worksheets[1];
            
            owcWorkSheet.Protection.Enabled = true;
            owcWorkSheet.Protection.AllowDeletingColumns = false;
            owcWorkSheet.Protection.AllowDeletingRows = false;
            owcWorkSheet.Protection.AllowFiltering = false;
            owcWorkSheet.Protection.AllowFormattingColumns = false;
            owcWorkSheet.Protection.AllowFormattingRows = false;
            owcWorkSheet.Protection.AllowHeadingRename = false;
            owcWorkSheet.Protection.AllowInsertingColumns = false;

This will lock the worksheet. I still have not found a way to get the password in there. Possibly it is set in a different way than you are using. Make sure that you unlock / lock all cells using the hidden method:

owcWorkSheet.Cells.set_Locked(false);
owcWorkSheet.Cells.get_Item(1, 3).set_Locked(true);

Or switch it around if you want the reverse (i.e. want all cells locked except for one of them.).

It seems that the owcWorkSheet.Protection.Enabled = true; is what locks the worksheet.

If I find out how to assign a password to OWC11, I will mention that here. Hope this helps a bit.