Double orders running a strategy

[taihung82]

Hi,

I am new to programming a strategy. I would like to know whether someone can give me some help?
When i run the strategy in simulation mode. The strategy when triggered will summit an exit order to close a position before it summits the buy or sell order while there is no position or flat initially.

Thanks for anyone for any provide some advice and help

[NinjaTrader_Bertrand]

Hello taihung82, sorry for my late reply here - this can happen in strategy trading and we would call this then a missync situation, so your account not being in sync to what the strategy is believing to be trading coming for the historical chart portion. There are several options in NT handle this effectively, there are outlined here in the helpguide - http://www.ninjatrader.com/support/h..._positions.htm

[taihung82]

Hi, Bertrand

The problem still persists after i synced the account. I think it is caused by the exit strategy. Can you point me some guide for the code of verifying whether there is a position before summit the exit order.

[NinjaTrader_RyanM1]

Hello taihung82,

Generally exit orders should require a position before submitting. Exit orders are ignored if there is no position, and you can check for these types of messages by enabling TraceOrders output.
If you wanted to check by code for this, you could use the line below, which allows you to read the strategy position:
if (Position.MarketPosition != MarketPosition.Flat) { }