How I Can Retrieve A File And Save It's Contain In Text Area...

using (SqlConnection con = new SqlConnection(strConnect))
    {
    con.Open();
    using (SqlCommand cmd = new SqlCommand("SELECT fileContent FROM myTable WHERE ID=@ID", con))
        {
        cmd.Parameters.AddWithValue("@ID", idOfFileInTable);
        using (SqlDataReader reader = cmd.ExecuteReader())
            {
            if (reader.Read())
                {
                int id = (int) reader["iD"];
                string content = (string) reader["fileContent"];
                myTextBox.Text = content;
                }
            }
        }
    }