Question

I have an excel file(VSTO), which will be uploaded with data.
However I want to make one cell invisible, as it contains one of the ID’s which should not be revealed to the user.

I use Excel.Range.Value2 property to set the value.
Now I want to make the value inside it invisible

I am using C#, how do I accomplish the above.

Answer 1

I have worked on the VSTO Excel applications.
In my project i have used specials Ids to identify each column uniquely..

So, i would suggest rather than getting into coding you can do following 2 actions to make it invisible.
Go to ur visual studio, open design mode of the workbook.
Enter ur ids in columns or rows , wherever u want to (lets assume in column C and Row 5,6)

1.You can see the horizontal / vertical strips at the top and left side of excel which we use to resize the columns n rows ..just adjust it in a such a way that that particular column will be hidden

as u can see the image, i adjusted columns to Hide Column “C” and Rows to hide row no 5 and 6.

2.Now open excel (not from Visual stodio, from windows explorer) pres Alt+T+P+P
and protect the sheet using a perticular password and your are done.

Now user can not make any changes in columns or rows and date remains invisible.

Regards,

Sangram Nandkhile