No connection to SQL database

I received a notification that there was an update to MS SQL so I ran the update. I have an application that I had been running for many years but not lately. When I started it recently it wouldn't connect to the SQL database, When I run the app, it throws the following message:

System.Data.SqlClient.SqlException
HResult=0x80131904
Message=Cannot open database "D:\DATA FILES 092015\DVD_LIST.MDF" requested by the login. The login failed.
Login failed for user 'DESKTOP-H7RL6S9\Darby'.
Source=.Net SqlClient Data Provider


When I go into SQL Server the database comes up and I can run queries and everything runs great. Something changed to affect my application, and I don't know how to fix it. I can't find in the application where it attaches to the database so I can't make any changes to the connection string if necessary.

Let the smarter minds prevail

darby:o:o:(

What kind of program, desktop or web?

Quote:

---

Originally Posted by Darby

I can't find in the application where it attaches to the database so I can't make any changes to the connection string if necessary.

---

Search the whole project for "DVD_LIST.MDF"

Quote:

---

Originally Posted by Shaggy Hiker

What kind of program, desktop or web?

---

Desktop, single private user

darby