Start Date for Indicator

[stockgoblin]

Hi,

I get a little confused when attempting to code time logic.

Okay, I have a custom indicator that I would like to be able to set how many days ago in the data that it starts. So I have an object called "AppliedDays" that I can set in the Indicator Parameters.

I used to use:

if (ToDay(Time[0]) < AppliedDays)
RemoveDrawObjects();


but that meant I had to change the parameter all the time and use a clumsy date format


I want to just put in, say 30 days and have the indicator always start 30 days ago on the chart. I assume I have to use DateTime. Can you help me with the Syntax & Logic.

Is it something like:

if (DateTime.Now - AppliedDays > DateTime)
RemoveDrawObjects();

????

Any help is appreciated. Thanks

[NinjaTrader_AdamP]

stockgoblin,

All times in NinjaTrader use the DateTime class. This is something that has a lot of built in functionality for things like this.

So for example :

if ( (Time[0].DayOfYear - TimeTheObjectWasDrawn.DayOfYear) > 30 )
{

RemoveDrawObjects();

}

The only issue here is that you will want to detect the case that the year rolls over and account for it in your code.

DateTime.DayOfYear prints out the day from 1 to 365 of the current year, so if it rolls over that comparison no longer works.

Here is everything about DateTime : http://msdn.microsoft.com/en-us/libr....datetime.aspx