Imports GrapeCity.ActiveReports.Chart.Graphics

With Me.ChartControl1.Series(0)
    .Properties("DownswingLine") = New Line(Color.Red)
    .Properties("UpswingLine") = New Line(Color.Blue)
    .Properties("BoxSize") = 3.0F
End With

using GrapeCity.ActiveReports.Chart.Graphics;

this.chartControl1.Series[0].Properties["DownswingLine"] = new Line(Color.Red);
this.chartControl1.Series[0].Properties["UpswingLine"] = new Line(Color.Blue);
this.chartControl1.Series[0].Properties["BoxSize"] = 3f;