SQLServer CE deletes or looses files after insert

[Guest]

Hello All:

I am using a the following code to insert some values into CE edition
database running on the Desktop.This code works fine as far as inserting the
new record
the problem arises after the app has been shut down. After restarting the
app all the data in DB is gone. Any ideas on what I am doing wrong

conn = new SqlCeConnection("Data Source = MyDatabase#1.sdf");
conn.Open();
cmd = conn.CreateCommand();
cmd.CommandText = "INSERT INTO ExponentialHistory_S(Period,
SalesY1, SalesY2,SalesY3, FileName, Error, A, B) VALUES (?,?,?,?,?,?,?,?)";

cmd.Parameters.Add(new SqlCeParameter("p1", SqlDbType.NVarChar));
cmd.Parameters.Add(new SqlCeParameter("p2", SqlDbType.NVarChar));
cmd.Parameters.Add(new SqlCeParameter("p3", SqlDbType.NVarChar));
cmd.Parameters.Add(new SqlCeParameter("p4", SqlDbType.NVarChar));
cmd.Parameters.Add(new SqlCeParameter("p5", SqlDbType.NVarChar));
cmd.Parameters.Add(new SqlCeParameter("p6", SqlDbType.NVarChar));
cmd.Parameters.Add(new SqlCeParameter("p7", SqlDbType.NVarChar));
cmd.Parameters.Add(new SqlCeParameter("p8", SqlDbType.NVarChar));

cmd.Parameters["p1"].Value = dgMain[0, 0].Value;
cmd.Parameters["p2"].Value = dgMain[1, 0].Value;
cmd.Parameters["p3"].Value = dgMain[2, 0].Value;
cmd.Parameters["p4"].Value = dgMain[3, 0].Value;
cmd.Parameters["p5"].Value = UseFileName;
cmd.Parameters["p6"].Value = dgMain[4, 0].Value;
cmd.Parameters["p7"].Value = dgMain[5, 0].Value;
cmd.Parameters["p8"].Value = dgMain[6, 0].Value;

cmd.ExecuteNonQuery();

 

[RobinS]

Before you rerun the app, is the data in the database? There's a checkbox
somewhere that says "copy a new version over" or something like that, and
it does it every time you run your app.

Robin S.