MS Chart Control 學習手記(二) - 圓餅圖

using System.Web.UI.DataVisualization.Charting;

02	using System.Drawing;

03

04	namespace Chart.AJAX

05

{

06	public partial class Export_AJAX : System.Web.UI.Page

07

{

08	void CreateChart()

09

{

10	string[] xValues = { "0-20", "20-30", "30-40", "40-50", "50-60", "> 60", "unknow" };

11	int[] yValues = {5, 18, 45, 17, 2, 1, 162 };

12

13	//ChartAreas,Series,Legends 基本設定-------------------------------------------------

14	Chart Chart1 = new Chart();

15	Chart1.ChartAreas.Add("ChartArea1"); //圖表區域集合

16	Chart1.Legends.Add("Legends1"); //圖例集合說明

17	Chart1.Series.Add("Series1"); //數據序列集合

18

19	//設定 Chart-------------------------------------------------------------------------

20	Chart1.Width = 770;

21	Chart1.Height = 400;

22	Title title = new Title();

23	title.Text = titleStr;

24	title.Alignment = ContentAlignment.MiddleCenter;

25	title.Font = new System.Drawing.Font("Trebuchet MS", 14F, FontStyle.Bold);

26	Chart1.Titles.Add(title);

27

28	//設定 ChartArea1--------------------------------------------------------------------

29	Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = is3D;

30	Chart1.ChartAreas[0].AxisX.Interval = 1;

31

32	//設定 Legends-------------------------------------------------------------------------

33	//Chart1.Legends["Legends1"].DockedToChartArea = "ChartArea1"; //顯示在圖表內

34	//Chart1.Legends["Legends1"].Docking = Docking.Bottom; //自訂顯示位置

35

//背景色

36	Chart1.Legends["Legends1"].BackColor = Color.FromArgb(235, 235, 235);

37

//斜線背景

38	Chart1.Legends["Legends1"].BackHatchStyle = ChartHatchStyle.DarkDownwardDiagonal;

39	Chart1.Legends["Legends1"].BorderWidth = 1;

40	Chart1.Legends["Legends1"].BorderColor = Color.FromArgb(200, 200, 200);

41

42	//設定 Series1-----------------------------------------------------------------------

43	Chart1.Series["Series1"].ChartType = SeriesChartType.Pie;

44	//Chart1.Series["Series1"].ChartType = SeriesChartType.Doughnut;

45	Chart1.Series["Series1"].Points.DataBindXY(xValues, yValues);

46	Chart1.Series["Series1"].LegendText = "#VALX:    [ #PERCENT{P1} ]"; //X軸 + 百分比

47	Chart1.Series["Series1"].Label = "#VALX\n#PERCENT{P1}"; //X軸 + 百分比

48	//Chart1.Series["Series1"].LabelForeColor = Color.FromArgb(0, 90, 255); //字體顏色

49

//字體設定

50	Chart1.Series["Series1"].Font = new System.Drawing.Font("Trebuchet MS", 10, System.Drawing.FontStyle.Bold);

51	Chart1.Series["Series1"].Points.FindMaxByValue().LabelForeColor = Color.Red;

52	//Chart1.Series["Series1"].Points.FindMaxByValue().Color = Color.Red;

53	//Chart1.Series["Series1"].Points.FindMaxByValue()["Exploded"] = "true";

54	Chart1.Series["Series1"].BorderColor = Color.FromArgb(255, 101, 101, 101);

55

56	//Chart1.Series["Series1"]["DoughnutRadius"] = "80"; // ChartType為Doughnut時，Set Doughnut hole size

57	//Chart1.Series["Series1"]["PieLabelStyle"] = "Inside"; //數值顯示在圓餅內

58	Chart1.Series["Series1"]["PieLabelStyle"] = "Outside"; //數值顯示在圓餅外

59	//Chart1.Series["Series1"]["PieLabelStyle"] = "Disabled"; //不顯示數值

60	//設定圓餅效果，除 Default 外其他效果3D不適用

61	Chart1.Series["Series1"]["PieDrawingStyle"] = "Default";

62	//Chart1.Series["Series1"]["PieDrawingStyle"] = "SoftEdge";

63	//Chart1.Series["Series1"]["PieDrawingStyle"] = "Concave";

64

65	//Random rnd = new Random();  //亂數產生區塊顏色

66	//foreach (DataPoint point in Chart1.Series["Series1"].Points)

67

//{

68	//    //pie 顏色

69	//    point.Color = Color.FromArgb(150, rnd.Next(0, 255), rnd.Next(0, 255), rnd.Next(0, 255));

70

//}

71	Page.Controls.Add(Chart1);

72

}

73

}

74

}

畫出來的圓餅圖就像這樣