MS Chart Control 學習手記(二)

MS Chart Control 學習手記(二) - 圓餅圖

阅读量：5932 次

发布时间：2019-06-19

本文共 3433 字，大约阅读时间需要 11 分钟。

                  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          }