using System.Web.UI.DataVisualization.Charting;
using System.Drawing;
namespace Chart.AJAX
{
public partial class Export_AJAX : System.Web.UI.Page
{
void CreateChart()
{
string[] xValues = { "0-20", "20-30", "30-40", "40-50", "50-60", "> 60", "unknow" };
int[] yValues = {5, 18, 45, 17, 2, 1, 162 };
//ChartAreas,Series,Legends 基本設定-------------------------------------------------
Chart Chart1 = new Chart();
Chart1.ChartAreas.Add("ChartArea1"); //圖表區域集合
Chart1.Legends.Add("Legends1"); //圖例集合說明
Chart1.Series.Add("Series1"); //數據序列集合
//設定 Chart-------------------------------------------------------------------------
Chart1.Width = 770;
Chart1.Height = 400;
Title title = new Title();
title.Text = titleStr;
title.Alignment = ContentAlignment.MiddleCenter;
title.Font = new System.Drawing.Font("Trebuchet MS", 14F, FontStyle.Bold);
Chart1.Titles.Add(title);
//設定 ChartArea1--------------------------------------------------------------------
Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = is3D;
Chart1.ChartAreas[0].AxisX.Interval = 1;
//設定 Legends-------------------------------------------------------------------------
//Chart1.Legends["Legends1"].DockedToChartArea = "ChartArea1"; //顯示在圖表內
//Chart1.Legends["Legends1"].Docking = Docking.Bottom; //自訂顯示位置
//背景色
Chart1.Legends["Legends1"].BackColor = Color.FromArgb(235, 235, 235);
//斜線背景
Chart1.Legends["Legends1"].BackHatchStyle = ChartHatchStyle.DarkDownwardDiagonal;
Chart1.Legends["Legends1"].BorderWidth = 1;
Chart1.Legends["Legends1"].BorderColor = Color.FromArgb(200, 200, 200);
//設定 Series1-----------------------------------------------------------------------
Chart1.Series["Series1"].ChartType = SeriesChartType.Pie;
//Chart1.Series["Series1"].ChartType = SeriesChartType.Doughnut;
Chart1.Series["Series1"].Points.DataBindXY(xValues, yValues);
Chart1.Series["Series1"].LegendText = "#VALX: [ #PERCENT{P1} ]"; //X軸 + 百分比
Chart1.Series["Series1"].Label = "#VALX\n#PERCENT{P1}"; //X軸 + 百分比
//Chart1.Series["Series1"].LabelForeColor = Color.FromArgb(0, 90, 255); //字體顏色
//字體設定
Chart1.Series["Series1"].Font = new System.Drawing.Font("Trebuchet MS", 10, System.Drawing.FontStyle.Bold);
Chart1.Series["Series1"].Points.FindMaxByValue().LabelForeColor = Color.Red;
//Chart1.Series["Series1"].Points.FindMaxByValue().Color = Color.Red;
//Chart1.Series["Series1"].Points.FindMaxByValue()["Exploded"] = "true";
Chart1.Series["Series1"].BorderColor = Color.FromArgb(255, 101, 101, 101);
//Chart1.Series["Series1"]["DoughnutRadius"] = "80"; // ChartType為Doughnut時，Set Doughnut hole size
//Chart1.Series["Series1"]["PieLabelStyle"] = "Inside"; //數值顯示在圓餅內
Chart1.Series["Series1"]["PieLabelStyle"] = "Outside"; //數值顯示在圓餅外
//Chart1.Series["Series1"]["PieLabelStyle"] = "Disabled"; //不顯示數值
//設定圓餅效果，除 Default 外其他效果3D不適用
Chart1.Series["Series1"]["PieDrawingStyle"] = "Default";
//Chart1.Series["Series1"]["PieDrawingStyle"] = "SoftEdge";
//Chart1.Series["Series1"]["PieDrawingStyle"] = "Concave";
//Random rnd = new Random(); //亂數產生區塊顏色
//foreach (DataPoint point in Chart1.Series["Series1"].Points)
//{
// //pie 顏色
// point.Color = Color.FromArgb(150, rnd.Next(0, 255), rnd.Next(0, 255), rnd.Next(0, 255));
//}
Page.Controls.Add(Chart1);
}
}
}
畫出來的圓餅圖就像這樣
