Create array with only X values

[Pepperdog]

I am somewhat familiar with the DataSeries class which normally contains the same number of elements as bars in a chart.

Is there another way to limit the number of elements of a DataSeries? Say I only wanted my DataSeries to contain 100 elements and never more than 100. Can this be done, and if so, how?

Thanks

[Ralph]

Hi Pepperdog,

my shot for a framework.
The access to the data collection is done with the related bar number. If you operate with CurrentBar, then the last 100 values are stored.
Code is not tested.

Regards
Ralph

[SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][FONT=Courier New]using[/FONT][/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][FONT=Courier New][SIZE=2] System.Collections.Generic;[/SIZE][/FONT][/SIZE]
 
[SIZE=2][SIZE=2][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][FONT=Courier New]private[/FONT][/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][FONT=Courier New][SIZE=2][SIZE=2][COLOR=#000000] List<[COLOR=#0000ff]double[/COLOR]> barData = [/COLOR][/SIZE][/SIZE][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]new[/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][SIZE=2][COLOR=#000000] List<[COLOR=#0000ff]double[/COLOR]>();[/COLOR][/SIZE][/SIZE][/FONT]
[SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][FONT=Courier New]private [/FONT][/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][FONT=Courier New][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]int[/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][SIZE=2][COLOR=#000000] listSize = 100;[/COLOR][/SIZE][/SIZE][/FONT]
[SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][FONT=Courier New]public [/FONT][/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][FONT=Courier New][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]void[/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][SIZE=2][COLOR=#000000] WriteBarData([COLOR=#0000ff]int [COLOR=#000000]barID, [COLOR=#0000ff]double[/COLOR] barValue[/COLOR][/COLOR])[/COLOR][/SIZE][/SIZE][/FONT]
[SIZE=2][SIZE=2][FONT=Courier New][COLOR=#000000]{[/COLOR][/FONT][/SIZE][/SIZE]
[FONT=Courier New][COLOR=#000000] barData[barID % listSize] = barValue;[/COLOR][/FONT]
[SIZE=2][SIZE=2][FONT=Courier New][COLOR=#000000]}[/COLOR][/FONT][/SIZE][/SIZE]
[SIZE=2][SIZE=2][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][FONT=Courier New]public [/FONT][/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][FONT=Courier New][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]double[/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][SIZE=2][SIZE=2][COLOR=#000000] ReadBarData([COLOR=#0000ff]int [COLOR=#000000]barID[/COLOR][/COLOR])[/COLOR][/SIZE][/SIZE][/FONT]
[SIZE=2][SIZE=2][FONT=Courier New][COLOR=#000000]{[/COLOR][/FONT][/SIZE][/SIZE]
[FONT=Courier New][COLOR=#000000] [SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff][SIZE=2][COLOR=#0000ff]return [/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE]barData[barID % listSize];[/COLOR][/FONT]
[SIZE=2][SIZE=2][FONT=Courier New][COLOR=#000000]}[/COLOR][/FONT][/SIZE]
[/SIZE][/SIZE][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][/COLOR][/SIZE][/SIZE][/SIZE]

[NinjaTrader_Bertrand]

Thanks for posting this code snippet Ralph!

Here is a link to ArrayLists on MSDN - http://msdn.microsoft.com/en-us/libr...arraylist.aspx