MsChart<3> 饼状图

MsChart，饼状图

 1 <asp:Chart ID="Chart1" runat="server" BorderlineDashStyle="Solid" BorderlineColor="Gray" Width="768px" BackGradientStyle="DiagonalLeft" BackSecondaryColor="AliceBlue"
 2 BackColor="WhiteSmoke">
 3     <Legends>
 4          <asp:Legend Name="Legend1" Alignment="Near">
 5          </asp:Legend>
 6     </Legends>
 7     <Series>
 8          <asp:Series Name="Series1" ChartType="Pie" Font="Arial">
 9          </asp:Series>
10      </Series>
11       <ChartAreas>
12           <asp:ChartArea Name="ChartArea1">
13           </asp:ChartArea>
14       </ChartAreas>
15 </asp:Chart>

后台代码：（dt为数据源）数据库中数据Sample

1 Chart1.Series["Series1"].Label = "#PERCENT{P}";//百分比形式
2 Chart1.Series["Series1"].Points.DataBind(dt.DefaultView, "Result", "Score", "LegendText=Result,YValues=Score,ToolTip=Score");
3 Chart1.Series["Series1"].ChartType = SeriesChartType.Pie;
4 Chart1.Series["Series1"].ToolTip = "#LEGENDTEXT:#VAL{C} MILLION";
5 
6 Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = true;
7 Chart1.DataBind();

Chart Image的保存，下载：

string path = @"C:\Chart\Chart_" + DateTime.Now.ToString("yyyyMMddhhmm") + @"\";

if (!System.IO.Directory.Exists(path))
{
      System.IO.Directory.CreateDirectory(path);
}

Chart1.SaveImage(path + "QC_Status.jpg", System.Web.UI.DataVisualization.Charting.ChartImageFormat.Jpeg);

来源：http://www.cnblogs.com/eva_2010/archive/2011/12/12/2284919.html