Legend ScrollBar freezes

[Anthony S.]

Hello,

I am evaluating the last .NET library with C#, and i have a performance issue with the Legend ScrollBar Tool. When i want to slide the scroll bar this one is "more or less" slow depending of the current number of points displayed in the chart (zoom).
What i have to do in order to guarante a smooth scrolling regardless of the number of point to displayed.
I already played with autosize and resizechart parameters but it seems to have no effect.
My chart displays about 200 series of fastline and has a total of 3 000 000 points.
Any ideas of improvement ?

Thanks in advance,

Anthony

[Narcís]

Hello Anthony,

The only solution I can think of is trying to reduce the number of points displayed on the series so that the LegendScrollBar tool has less points to handle. You can do that with the DownSampling function, you'll find examples at All Features\Welcome !\Functions\Extended\Reducing number of points in the features demo, available at TeeChart's program group. After that, choose to only display the series associated with the DownSampling function in the legend.