^{ITChart.OnSeriesBeforeDrawValues
ITChart}

<sup>property OnSeriesBeforeDrawValues: TTChartOnSeriesBeforeDrawValues;

Type Library
TeeChartx

Description
The SeriesBeforeDrawValues event is called just before a specific Series' points are painted. You can then paint on the Chart.Canvas your customized drawings.</sup>

^WARNING:

^{Do not change Series properties that would force the Series to be repainted. This may cause recursion and endless repainting !}

^{Example [Visual Basic]:}

^{Private Sub Form_Load()}

^{With TChart1}

^{.Height = 4000}

^{.Width = 6000}

^{.AddSeries scBar}

^{.AddSeries scLine}

^{.AddSeries scPoint}

^{.Series(0).FillSampleValues 6}

^{.Series(1).FillSampleValues 6}

^{.Series(2).FillSampleValues 6}

^{End With}

^{End Sub}

^{Private Sub DrawTheCircle()}

^{With TChart1.Canvas}

^{.Brush.Color = vbYellow}

^{.Brush.Style = bsSolid}

^{.Pen.Color = vbBlue}

^{.Pen.Style = psDot}

^{.Ellipse 80, 80, 290, 160}

^{End With}

^{End Sub}

^{Private Sub Option1_Click()}

^{TChart1.Repaint}

^{End Sub}

^{Private Sub Option2_Click()}

^{TChart1.Repaint}

^{End Sub}

^{Private Sub TChart1_OnSeriesAfterDrawValues(ByVal SeriesIndex As Long)}

^{If Option1.Value = True And SeriesIndex = 0 Then}

^{DrawTheCircle}

^{End If}

^{End Sub}

^{Private Sub TChart1_OnSeriesBeforeDrawValues(ByVal SeriesIndex As Long)}

^{If Option2.Value = True And SeriesIndex = 0 Then}

^{DrawTheCircle}

^{End If}

^{End Sub}