ASP.NET使用webchart

<div id="Div2" runat="server">     <Web:ChartControl ID="myPieChart" runat="server" Width="400"                       HasChartLegend="true">     </Web:ChartControl>     <Web:ChartControl ID="myChartControl" runat="server" Width="600"                       HasChartLegend="false" ChartPadding="50">     </Web:ChartControl> </div> 

//实例化两个chart对象 PieChart pC = new PieChart(); ColumnChart cC = new ColumnChart();  //饼图颜色 pC.Colors = new Color[] { Color.Red, Color.Blue, Color.Yellow, Color.Cyan, Color.AntiqueWhite, Color.RosyBrown };  //需要绑定的数据 int IContracting = Int32.Parse(Contracting.Text); int INearlyEnd = Int32.Parse(NearlyEnd.Text); int IContractYear = Int32.Parse(ContractYear.Text); int IContractSign = Int32.Parse(ContractSign.Text); int IAlreadyEnd = Int32.Parse(AlreadyEnd.Text); int SignIn = IContractSign - IAlreadyEnd;  //绑定数据到饼图并显示 pC.Data.Add(new ChartPoint("已结束的合同", SignIn)); pC.Data.Add(new ChartPoint("未结束的合同", INearlyEnd)); pC.DataLabels.Visible = true; pC.DataLabels.NumberFormat = "N"; pC.DataLabels.ForeColor = Color.Black; myPieChart.Charts.Add(pC); myPieChart.RedrawChart();  //绑定数据到柱状图并显示 cC.Data.Add(new ChartPoint("合同中的工程", IContracting)); cC.Data.Add(new ChartPoint("即将结束的合同", INearlyEnd)); cC.Data.Add(new ChartPoint("今年将结束的合同", IContractYear)); cC.Data.Add(new ChartPoint("已签约的合同", IContractSign)); cC.Fill.Color = Color.Blue; cC.Shadow.Color = Color.Red; cC.DataLabels.Visible = true; cC.MaxColumnWidth = 40; myChartControl.Charts.Add(cC); myChartControl.RedrawChart();