Hi Friends,
using System.Web.UI.DataVisualization.Charting;
...
private void Page_Load(object sender, System.EventArgs e)
{
Chart1.BorderSkin.SkinStyle = BorderSkinStyle.FrameThin6;
Chart1.BorderSkin.BackColor = Color.Red;
Chart1.BorderSkin.BackSecondaryColor = Color.Blue;
Chart1.BorderSkin.BackHatchStyle = ChartHatchStyle.DarkVertical;
Chart1.BorderSkin.BackGradientStyle = GradientStyle.DiagonalRight;
Chart1.BorderSkin.BorderColor = Color.Yellow;
Chart1.BorderSkin.BorderDashStyle = ChartDashStyle.Solid;
Chart1.BorderSkin.BorderWidth = 2;
}