Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
　　Dim cds As C1.Win.C1Chart.ChartDataSeriesCollection = C1WebChart1.ChartGroups(0).ChartData.SeriesList
　　cds(0).SymbolStyle.Shape = C1.Win.C1Chart.SymbolShapeEnum.None
　　cds(1).SymbolStyle.Shape = C1.Win.C1Chart.SymbolShapeEnum.None
End Sub

Protected Sub C1WebChart1_DrawDataSeries(ByVal sender As Object, ByVal e As C1.Win.C1Chart.DrawDataSeriesEventArgs) Handles C1WebChart1.DrawDataSeries
　　If e.SeriesIndex = 0 Then
　　　　Dim pen0 As New Drawing.Pen(Drawing.Color.Blue, 3)
　　　　'規定の矢印形キャップを指定します
　　　　pen0.EndCap = Drawing.Drawing2D.LineCap.ArrowAnchor
　　　　e.Pen = pen0
　　ElseIf e.SeriesIndex = 1 Then
　　　　Dim pen1 As New Drawing.Pen(Drawing.Color.Red, 3)
　　　　'サイズを調整可能な矢印形キャップを指定します
　　　　pen1.CustomEndCap = New Drawing.Drawing2D.AdjustableArrowCap(5, 7, True)
　　　　e.Pen = pen1
　　End If
End Sub

protected void Page_Load(object sender, EventArgs e)
{
　　C1.Win.C1Chart.ChartDataSeriesCollection cds = C1WebChart1.ChartGroups[0].ChartData.SeriesList;
　　cds[0].SymbolStyle.Shape = C1.Win.C1Chart.SymbolShapeEnum.None;
　　cds[1].SymbolStyle.Shape = C1.Win.C1Chart.SymbolShapeEnum.None;
}

protected void C1WebChart1_DrawDataSeries(object sender, C1.Win.C1Chart.DrawDataSeriesEventArgs e)
{
　　if (e.SeriesIndex == 0)
　　{
　　　　System.Drawing.Pen pen0 = new System.Drawing.Pen(System.Drawing.Color.Blue, 3);
　　　　//規定の矢印形キャップを指定します
　　　　pen0.EndCap = System.Drawing.Drawing2D.LineCap.ArrowAnchor;
　　　　e.Pen = pen0;
　　}
　　else if (e.SeriesIndex == 1)
　　{
　　　　System.Drawing.Pen pen1 = new System.Drawing.Pen(System.Drawing.Color.Red, 3);
　　　　//サイズを調整可能な矢印形キャップを指定します
　　　　pen1.CustomEndCap = new System.Drawing.Drawing2D.AdjustableArrowCap(5, 7, true);
　　　　e.Pen = pen1;
　　}
}