System.Data.SqlClient.SqlTransaction.Dispose C# (CSharp) Method

        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                if (!IsZombied && !IsYukonPartialZombie)
                {
                    _internalTransaction.Dispose();
                }
            }
            base.Dispose(disposing);
        }

        public static bool ExecuteQueryTrans(string cmdtext, params SqlParameter[] parameters)
        {
            int i = 0;

            using (SqlConnection conn = new SqlConnection(connStr))
            {
                System.Data.SqlClient.SqlCommand cm = new System.Data.SqlClient.SqlCommand();
                cm.Connection = conn;
                conn.Open();
                System.Data.SqlClient.SqlTransaction trans = conn.BeginTransaction();
                try
                {
                    cm.CommandText = cmdtext;
                    cm.Parameters.AddRange(parameters);
                    cm.Transaction = trans;
                    i = cm.ExecuteNonQuery();
                    trans.Commit();
                }
                catch
                {
                    trans.Rollback();
                }
                finally
                {
                    conn.Close();
                    trans.Dispose();
                    conn.Dispose();
                }
            }
            return(i > 0);
        }