Failed to cancel manually added orders

[localappleseed]

I tried to cancel existing orders which I added manually through SuperDOM. CancelOrder() is called from OnStateChange(), it didn't work, do I have to call CancelOrder() from OnOrderUpdate()? What's the correct way to cancel existing orders?
I am using the following code to cancel, both Prints are working and printed the same results. The order in SuperDOM is still there and it cannot be cancelled.

if (State == State.SetDefaults)
{
// Find our Sim101 account

lock (Account.All)
myAccount = Account.All.FirstOrDefault(a => a.Name == "Sim101");

foreach (Order order in myAccount.Orders)
{
Print (" 111111 order = " + order);
CancelOrder(order);
Print (" 222222 order = " + order);
}
}

[NinjaTrader_BrandonH]

Hello localappleseed,

Thank you for your post.

The CancelOrder() method should not be called in State.SetDefaults since the strategy will not have processed any orders at this point. Instead, CancelOrder() could be called when the State reaches State.Transition so that orders are canceled when the strategy transitions from processing historical data to real-time data. Please note, CancelOrder() will only cancel orders made by the strategy.

CancelOrder() - https://ninjatrader.com/support/help...ancelorder.htm

You may reference the SampleCancelOrder example script which demonstrates how to use CancelOrder().

SampleCancelOrder - https://ninjatrader.com/support/help...thod_to_ca.htm

If you would like to cancel orders placed on an account outside of the strategy, you could use the AddOn approach to call <Account>.Cancel() when the script reaches a State of State.DataLoaded.

Here is a help guide link about using <Account>.Cancel(). - https://ninjatrader.com/support/help...t8/?cancel.htm

Additionally, to cancel entry and exit orders when a strategy is disabled, you could enable the 'Cancel entry orders when a strategy is disabled' and 'Cancel exit orders when a strategy is disabled' properties. To do so, please follow the instructions below.

• In the Control Center, select Tools > Options > Strategies tab.
• Under 'NinjaScript', select the boxes titled 'Cancel entry orders when a strategy is disabled' and 'Cancel exit orders when a strategy is disabled'.
• Click OK.

Please see this help guide link for more information — https://ninjatrader.com/support/help...riptProperties

Let us know if we may further assist.

[localappleseed]

Yes, per your instruction, I changed to use myAccount.CancelAllOrders(order.Instrument), it worked.
Super!. Thank you so much for your quick help.