这样写
Dim bchart = e.Form.Controls("Chart1").basecontrolbChart.ChartGroups(0).ChartData.SeriesList(0).FillStyle.OutlineColor= System.Drawing.Color.Blue
http://helpcentral.componentone.com/nethelp/c1chart2d/C1.Win.C1Chart.4~C1.Win.C1Chart.FillStyle_members.html