indicator vs strategy

[safetrading]

I'm using the following line in an indicator I'm building,
if(Position.MarketPosition != MarketPosition.Flat)MyPosition = X;

but I keep getting an error saying; "An object reference is required for the non-static field, method or property."

Can I only use these statements in a Strategy and not in an Indicator?

Thanks,

Safetrading

[NinjaTrader_Bertrand]

Correct safetrading, those would be for a strategy script only. The indicator could not initiate or manage trades.