/// <summary>
        ///     Returns a value indicating whether a payable exists that matches the given criteria
        /// </summary>
        /// <param name="invoiceId">The id of the invoice to check</param>
        /// <param name="bankId">The bank from which the payment should be made</param>
        /// <param name="state">The state of the payable</param>
        /// <param name="context">The context to execute this method in</param>
        /// <returns></returns>
        public static void BeginExists(string invoiceId, string bankId, PayableState state, EventHandler<DataPortalResult<bool>> handler, AdministrationContext context = null)
        {
            DoBeginExists(new PayableCriteria(invoiceId, bankId, state, context), handler);
        }