PendingOrderCancelledEventArgs

using cAlgo.API;
using cAlgo.API.Internals;

namespace cAlgo.Robots;

public partial class Test : Robot
{
    protected override void OnStart()
    {
        PendingOrders.Cancelled += OnPendingOrdersCancelled;

        var result = PlaceStopOrder(TradeType.Buy, Symbol.Name, 10000, Symbol.Ask + 10 * Symbol.PipSize);
        CancelPendingOrder(result.PendingOrder);
    }

    private void OnPendingOrdersCancelled(PendingOrderCancelledEventArgs args)
    {
        Print("Pending order with id {0} was cancelled. Reason: {1}", args.PendingOrder.Id, args.Reason);
    }
}

import clr

clr.AddReference("cAlgo.API")

# Import cAlgo API types
from cAlgo.API import *
# Import trading wrapper functions
from robot_wrapper import *

class Test():
    def on_start(self):
        api.PendingOrders.Cancelled += self.on_pending_orders_cancelled
        result = api.PlaceStopOrder(TradeType.Buy, api.Symbol.Name, 10000, api.Symbol.Ask + 10 * api.Symbol.PipSize)
        api.CancelPendingOrder(result.PendingOrder)

    def on_pending_orders_cancelled(self, args):
        print(f"Pending order with id {args.PendingOrder.Id} was cancelled. Reason: {args.Reason}")

{
  "AccessRights": "None",
  "AddIndicators": true
}