SQL Server 2005 Express Connectivity With Visual Studio.NET 2005

Hello

I'm having a problem with the server connection and my C# code. The code executes alright but no data is entered into the database behind it.  I'm pasting the connection code over here as well. The sql commands are used in the code. I think I used the sql server mobile edition which is installed along with visual studio.net 2005. Anyone know what's wrong, and can help me out? Thanks in advance.public static void storeInDb(string trackName, string artist, string albumTitle, string year, string path, uint[] fp)

{

string connStr="Data Source=.\SQLEXPRESS;AttachDbFilename='"+path+"\Data\ACI.mdf';Integrated Security=True;User Instance=True";SqlConnection conn = new SqlConnection(connStr);

conn.Open();string sql = "INSERT INTO Clip(Song, Artist, Album, Year) VALUES('" + trackName;sql = sql + "','" + artist + "','" + albumTitle + "','" + year + "')";

 SqlCommand cmd = new SqlCommand(sql, conn);

cmd.ExecuteNonQuery();

 sql="SELECT max(ClipID) FROM Clip";

cmd = new SqlCommand(sql, conn);int id = Int32.Parse(cmd.ExecuteScalar().ToString());for (int i = 0; i < fp.Length; i++)

{

sql="INSERT INTO Hash VALUES ("+id+","+(i+1)+","+(int)fp[i]+")";cmd = new SqlCommand(sql, conn);

cmd.ExecuteNonQuery();

}

conn.Close();

}