add a connection to database not working, asp.net to mdf

i am adding a connection in asp.net using visual web developer to sql server database file, it's an MDF file.

when i click test connection i get this:

can someone please help me set up this connection

Answers


take a look at this link :

http://social.msdn.microsoft.com/Forums/en/sqlexpress/thread/6dfdcc22-7a81-4e8f-a947-c1ce6982d4b3


From the error message it looks like either the MDF or LDF file(s) are marked as read only.


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