How to program the MasterInstrument

[toyogo00]

Hi,

I can print Instrument as below:
Print(Instrument.MasterInstrument.Name + " " + Instrument.MasterInstrument.Description);

Can I change the description field as below?
If (Instrument.MasterInstrument.Name == "MAC")
Instrument.MasterInstrument.Description = "Manitowoc Ltd";

I try to do so and view the changes in the Tool->Instrument Manager, it does work. However, the Control Center cannot Exit after I executed this program!

I guess something goes wrong, pls help! (I have to reinstall NJ!!)

Regards,
Toyogo

[NinjaTrader_Joydeep]

Hello Toyogo,
Unfortunately you cannot change the description of the instrument via NinjaScript coding.

If you are trying to change the description you have to manually do so via Tools>Instrument manager.

http://www.ninjatrader.com/support/helpGuides/nt7/index.html?editing_instruments.htm

You may however also create your custom Instruments.txt file (located in the folder C:\Program Files (x86)\NinjaTrader 7\db) however nothing we would officially support.