I thought this could be happening. I've done what you've said. In order to avoid loop into the tools, I have assigned ColorBand pointer to the Tag property of the StartLine and EndLine.

Best Regards.

Hello. I have TeeChart 8.08. I have a cahrt with a TColorBandTool. I have assigned OnDragLine events to StartLine and EndLine of TColorBandTool. If I assign these events, then the colorBand is not repainted while dragging. If I remove the events, everything works again. this is mi code: TColorBandTo...

Hello. Thanks for the reply. I have read the post "Speed up Live Plotting?" and I made the same changes in "TeEngine.pas". On the other hand, I have modified the method "TChartSeries.CalcFirstLastVisibleIndex" (I have implemented bubble search). It seems that these changes do not affect my applicati...

Hello. I have a problem with real-time plot. I have several charts with three fastlineseries each. I insert 1000 values per second but only 10000 values are visible because I do scroll on X axis. The problem is, my application can not clear the values that are hidden when I scroll. It starts with 20...

Hi Narcis.

With this I have solved part of the problem. I think the other part depends on the grid component.

A greeting and thanks.

Hi Narcis. First, thanks for the reply. I had already thought of that solution. I eliminated it, because this produces effects graphics to represent the series: Skip Nulls: when I scroll chart, the first value always start drawing at 0. DontPaint Nulls: no points are linked with each other and the p...

Hello. I have a problem to represent a chart in a grid; I have: TeeChart with some TFastLine series -->> TChartDataSet -->> TDataSource -->> Grid (QuantumGrid) If the series has a different XValues, It´s represented in the grid something like: Serie1.X______Serie1.Y______Serie2.X_____Serie2.Y ------...

Hi. Thanks for the help. Now I know that the problem is not my system. I will try with the beta.

Best Regards.

Hello and thanks for the quick reply. Try to do this at design time:

1. add new TFastLineSeries in Chart1
2. update the fields of ChartDataSet1 (delete all + add all fields)
3. set Chartdataset->Active = true -------> error

I've attached a screenshot

Greetings!

Hello. This is the sample project. The error occurs when adding a TSeries or activate the dataset or when adding fields to the dataset.

Hello. I have Borland 2009 with TeeChart Pro 8.06 and QuantumGrid. I'm using Tchartdataset to display information from TChart to cxGrid. First I add new Tseries to Chart and then, I active tchartdataset and I get an acces violation error in rtl120.bpl. [4223C2FC]{Tee812.bpl } Teengine.TCustomAxisPan...