Help with syntax- ArrayList-Struct

[malmaa]

I am trying to build an ArrayList (Rectangles) containing a structure (Reclh). Do we have to define the element type in ArrayList? It appears to me that ArrayList doesn’t accept a structure as it’s element. I get an xmlinclude error message.
I referring to MS website but could not get much help. Can guide me if some one has a sample strategy that utilizes Lists and structures.

using System.Collections;
privateint barNo = 1;
// User defined Structure to store point
publicstruct Reclh { publicdouble l; publicdouble h;}
// Arraylist by name "Rectangles" to store above structure
public ArrayList Rectangles = new ArrayList();


protectedoverridevoid OnBarUpdate()
{ Reclh Recoor; int mycon =0;
while ( mycon < 5)
{ Recoor.l=mycon; Recoor.h=mycon+1; Print(mycon);
Rectangles.Add(Recoor); // it error comes here
++mycon;
}

}

As always any comment is highly appreciated.

[NinjaTrader_Bertrand]

malmaa, unfortunately this is outside of the scope we can support here, but perhaps this will help you - http://www.daniweb.com/forums/thread70429.html#

[mrlogik]

malmaa,

The beauty of c# is that everything is an object.

So, you can create an ArrayList(), and add any object type to you. You simply need to properly cast it when you retrieve it from the ArrayList.

Try this.

public struct Reclh
{
    public double l;
    public double h;
}

private ArrayList al;

protected override void Initialize()
{
    al = new ArrayList();
}

protected override void OnBarUpdate()
{

    Rectlh tRectlh;

    tRectlh.l = 1;
    tRectlh.h = 2;

    //Add this object to the arraylist
    al.Add(tRectlh);

}

Now, when you want to remove it just index it like an array. Be sure not to index past the bounds of the ArrayList(), which can be accessed with the .Count variable.

Hope this helps.

[malmaa]

Fantastic!!
I have been struggling for this info since last 3 days. You are a have given me sparkles for this New Year.
Wish mrlogik and Ninja Team a Happy and Prosperous New Year.
Thanks a lot.

[mrlogik]

you as well