AddXY at the beginning of the series

[bertrod]

Hello,

I would like to add points at the beginning of a TFastLineSeries (index 0). Notice that my series must be with a "loNone" order.

My goal is to do it as fast as possible. Is there a quick way to do it using some specific TeeChart methods ?

[Pep]

Hi Bertrod,

you have two options :
1) if you want to add points before the 0 index, having negative XValues you can do :
Series1.AddXY(Series1.XValues.MinValue-1,random(100));
2) If you want that the added point always have the index as 0, then the next xvalues will have to be moved, in that case you can use :
for i := 0 to Series1.Count-1 do
Series1.XValue:=Series1.XValue+1;
Series1.AddXY(0,random(100));