SQL Server 2005 Debug And User Instances Confussion

Hi all,



This is my first C# (2.0) Windows based app accessing a local SQL Server database. Ive build a couple of web based apps using C#.



First I just copied a datbase access wrapper class from one of my web apps and used that. It works, but, the database shown in Server Explorer in VS2005 shows the table as empty. The table in /bin/ however, is updated as expected. Before I realised that there were seperate instances of the database i stripped everything down to a very simple example



[code]
string sConnectionString = "Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database1.mdf;Integrated Security=True;User Instance=True";
SqlCommand foo = new SqlCommand("INSERT INTO tblTest (foo) VALUES ('atest')");
SqlConnection conn = new SqlConnection(sConnectionString);
conn.Open();
foo.Connection = conn;
foo.ExecuteNonQuery();
foo.Dispose();
conn.Close();
[/code]



This little tester windows based app has a simple tester drag and dropped grid view in it. When i run /pathToApp/bin/Debug/<AppName>.exe, independantly of VS, the grid view is full of the value "atest" as expected, but not when ran under visual studio. As I said above i found (at least i think this is right) there is a debug and user instance of the database. So im guessing I need two connection strings if i want to update both whilst dev'ing the application.



Ive had a look throuhg connectionstring.com and, to be honest, im confused... Any help for what the second connection string should be would be greatly apprecaited.

Thanks.