It is not enough to declare a variable public - please update your documentation.

[xTrader1]

A behavior described below may be expected, but it should be emphasized in a documentation. I'm working with user indicator ZigZagUTC , when the author declared several indicator variables as public:

           public int dir;         // direction of current zigzag trend, 1=up, -1=down
            public int lasthibar;   // bar number of last swing high (bars ago = CurrentBar-lasthibar)
            public int lastlobar;   // bar number of last swing low
            public double lasthi;   // value of last swing high

Somewhere in the indicator , dir value is set:

                    if (hi[0] < hi[1]) dir = -1;

and placing breakpoint using VS Express debugging I checked this code is accessed. However accessing dir outside of indicator :

                val1 = 
                    ZigZagUTC(BarsArray[BarsInProgress],
 0,zigSpan,useHiLo,Color.Transparent).dir;

always gives 0 .

Only adding a property :

        [Browsable(false)]
        [XmlIgnore()]
        public int Dir1
        {
            // We need to call the Update() method to ensure our exposed variable is in up-to-date.
            get { Update(); return dir ; }
        }

and accessing a property outside:

                val1 = 
                    ZigZagUTC(BarsArray[BarsInProgress], 0,zigSpan,
                    useHiLo,Color.Transparent).Dir1;

solves the problem, it seems that any internal indicator state data may be accessed from outside only by means of property..

[NinjaTrader_Bertrand]

xTrader1, correct this is expected and documented via a reference sample by us -

http://www.ninjatrader.com/support/forum/showthread.php?t=4991

http://www.ninjatrader.com/support/helpGuides/nt7/update.htm

[xTrader1]

xTrader1, correct this is expected and documented via a reference sample by us -

http://www.ninjatrader.com/support/forum/showthread.php?t=4991

http://www.ninjatrader.com/support/h...nt7/update.htm

Well I know these examples, however the first shows using DataSeries, not an internal state value, the second shows how to use a property correctly, without emphasizing the property should be used, not just a public variable. So please emphasize this issue somewhere in the next release, may be under Tutorials/Indicators/Advanced. That's for others, I already know.

Thank you,

[NinjaTrader_Bertrand]

I see thanks for clarifying, I will forward it - however if you check the calling strategy script, the public property of the indicator is clearly called to retrieve the kept up to date value.