string s = Convert.ToInt32(comboBox1.SelectedValue.ToString());
strConn = ConfigurationManager.ConnectionStrings["DefaultConnection"].ConnectionString;
using (SqlConnection conn = new SqlConnection(strConn))
{
conn.Open();
using (IDbCommand command = new SqlCommand("stp_AddComboToDatabase", conn))
{
command.CommandType = CommandType.StoredProcedure;
command.Parameters.Add(new SqlParameter("@ID",s));