storing data from textbox to sql table

Question

hi guys
i dont know if it's the right place
i just want to take value from two textbox & store it into sql database
i am using sql server 2005 & visual studio 2005
i have used a label for checking the data is stoed or not ...but not working
this is the code for the buton event

 SqlConnection con = new SqlConnection();
            con.ConnectionString = "Data Source=.\\SQLEXPRESS;AttachDbFilename=|DataDirectory|\\db.mdf;Integrated Security=True;User Instance=True";

            SqlCommand cmd = new SqlCommand();
            cmd.CommandText = "insert into t1 (name,age) values (@name,@age)";
            cmd.CommandType = CommandType.Text;
            cmd.Connection = con;
            SqlParameter name_param = new SqlParameter("@name", SqlDbType.VarChar, 50);
            name_param.Value = textBox1.Text;
            cmd.Parameters.Add(name_param);

            SqlParameter age_param = new SqlParameter("@age", SqlDbType.VarChar, 10);
            age_param.Value = textBox2.Text;
            cmd.Parameters.Add(age_param);
            con.Open();
            int result = cmd.ExecuteNonQuery();
            if (result != 0)
            {
                lb1.Visible = true;
                lb1.Text = "added";
            }
            else
            {
                lb1.Visible = true;
                lb1.Text = "error";
            }


            con.Close(); 

can someone pls give some simple explanation of how to solve my problem
thnks