hi expert
i remote to sql express 2005 whith this connection string

SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirector y|\test.mdf;Integrated Security=True;User Instance=True");

my database name is test
i can read my data in my table (STD)
and i create a procedure for insert data to above table
i dont any problem
my store procedure works good
but when i close the program my added data was reset and my inserting didn't any action to my database and my table (STD)

can you help me ?
i don't have this problem when i use the SQL SERVER 2000 Enterprise edition

regards