clq

  博客园  :: 首页  :: 新随笔  :: 联系 :: 订阅 订阅  :: 管理

http://www.dotblogs.com.tw/suehilary/archive/2011/10/22/45430.aspx

--------------------------------------------------

2011/10/22 09:53 | 閱讀數 : 1075 我要推薦 | Add Comment | 文章分類 : ASP.NET C# MSChart 訂閱
客戶希望可以針對資料庫裡面的資料產生出曲線圖、直條圖、橫條圖、立體直條圖、立體橫條圖、圓餅圖、立體圓餅圖
剛聽到真是快吐血,畢竟沒做過,感覺又頗麻煩...
不過問了一下G哥,發現原來微軟收購了一家圖表元件公司(Dundas)
並釋出了一個完全免費的圖表元件「Microsoft Chart Controls 」
稍微看了一下,功能頗強...且官網還可以下載超多範例(這裡)

 

使用前必須安裝組件,我是使用VS2010,忘了當初有沒有裝(半個月前的事...)

 

MSChart - 使用直條圖&恆條圖

01 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 = { "數值1", "數值2" };
11             string[] titleArr = {"活動1", "活動2"};
12             int[] yValues = {269000, 94};
13             int[] yValues2 = {120300, 116};
14  
15             //ChartAreas,Series,Legends 基本設定--------------------------------------------------
16             Chart Chart1 = new Chart();
17             Chart1.ChartAreas.Add("ChartArea1"); //圖表區域集合
18             Chart1.Series.Add("Series1"); //數據序列集合
19             Chart1.Series.Add("Series2");
20             Chart1.Legends.Add("Legends1"); //圖例集合
21  
22             //設定 Chart
23             Chart1.Width = 700;
24             Chart1.Height = 400;
25             Title title = new Title();
26             title.Text = "長條圖";
27             title.Alignment = ContentAlignment.MiddleCenter;
28             title.Font = new System.Drawing.Font("Trebuchet MS", 14F, FontStyle.Bold);
29             Chart1.Titles.Add(title);
30  
31             //設定 ChartArea----------------------------------------------------------------------
32             Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = true; //3D效果
33             Chart1.ChartAreas["ChartArea1"].Area3DStyle.IsClustered = true; //並排顯示
34             Chart1.ChartAreas["ChartArea1"].Area3DStyle.Rotation = 40; //垂直角度
35             Chart1.ChartAreas["ChartArea1"].Area3DStyle.Inclination = 50; //水平角度
36             Chart1.ChartAreas["ChartArea1"].Area3DStyle.PointDepth = 30; //數據條深度
37             Chart1.ChartAreas["ChartArea1"].Area3DStyle.WallWidth = 0; //外牆寬度
38             Chart1.ChartAreas["ChartArea1"].Area3DStyle.LightStyle = LightStyle.Realistic; //光源
39             Chart1.ChartAreas["ChartArea1"].BackColor = Color.FromArgb(240, 240, 240); //背景色
40             Chart1.ChartAreas["ChartArea1"].AxisX2.Enabled = AxisEnabled.False; //隱藏 X2 標示
41             Chart1.ChartAreas["ChartArea1"].AxisY2.Enabled = AxisEnabled.False; //隱藏 Y2 標示
42             Chart1.ChartAreas["ChartArea1"].AxisY2.MajorGrid.Enabled = false;   //隱藏 Y2 軸線
43             //Y 軸線顏色
44             Chart1.ChartAreas["ChartArea1"].AxisY.MajorGrid.LineColor = Color.FromArgb(150, 150, 150);
45             //X 軸線顏色
46             Chart1.ChartAreas["ChartArea1"].AxisX.MajorGrid.LineColor = Color.FromArgb(150, 150, 150);
47             Chart1.ChartAreas["ChartArea1"].AxisY.LabelStyle.Format = "#,###";
48             //Chart1.ChartAreas["ChartArea1"].AxisY2.Maximum = 160;
49             //Chart1.ChartAreas["ChartArea1"].AxisY2.Interval = 20;
50  
51             //設定 Legends------------------------------------------------------------------------               
52             Chart1.Legends["Legends1"].DockedToChartArea = "ChartArea1"; //顯示在圖表內
53             //Chart1.Legends["Legends1"].Docking = Docking.Bottom; //自訂顯示位置
54             Chart1.Legends["Legends1"].BackColor = Color.FromArgb(235, 235, 235); //背景色
55             //斜線背景
56             Chart1.Legends["Legends1"].BackHatchStyle = ChartHatchStyle.DarkDownwardDiagonal;
57             Chart1.Legends["Legends1"].BorderWidth = 1;
58             Chart1.Legends["Legends1"].BorderColor = Color.FromArgb(200, 200, 200);
59  
60             //設定 Series-----------------------------------------------------------------------
61             Chart1.Series["Series1"].ChartType = SeriesChartType.Column; //直條圖
62             //Chart1.Series["Series1"].ChartType = SeriesChartType.Bar; //橫條圖
63             Chart1.Series["Series1"].Points.DataBindXY(xValues, yValues);
64             Chart1.Series["Series1"].Legend = "Legends1";
65             Chart1.Series["Series1"].LegendText = titleArr[0];
66             Chart1.Series["Series1"].LabelFormat = "#,###"; //金錢格式
67             Chart1.Series["Series1"].MarkerSize = 8; //Label 範圍大小
68             Chart1.Series["Series1"].LabelForeColor = Color.FromArgb(0, 90, 255); //字體顏色
69             //字體設定
70             Chart1.Series["Series1"].Font = new System.Drawing.Font("Trebuchet MS", 10, System.Drawing.FontStyle.Bold);
71             //Label 背景色
72             Chart1.Series["Series1"].LabelBackColor = Color.FromArgb(150, 255, 255, 255);
73             Chart1.Series["Series1"].Color = Color.FromArgb(240, 65, 140, 240); //背景色
74             Chart1.Series["Series1"].IsValueShownAsLabel = true; // Show data points labels
75  
76             Chart1.Series["Series2"].Points.DataBindXY(xValues, yValues2);
77             Chart1.Series["Series2"].Legend = "Legends1";
78             Chart1.Series["Series2"].LegendText = titleArr[1];
79             Chart1.Series["Series2"].LabelFormat = "#,###"; //金錢格式
80             Chart1.Series["Series2"].MarkerSize = 8; //Label 範圍大小
81             Chart1.Series["Series2"].LabelForeColor = Color.FromArgb(255, 103, 0);
82             Chart1.Series["Series2"].Font = new System.Drawing.Font("Trebuchet MS", 10, FontStyle.Bold);
83             Chart1.Series["Series2"].LabelBackColor = Color.FromArgb(150, 255, 255, 255);
84             Chart1.Series["Series2"].Color = Color.FromArgb(240, 252, 180, 65); //背景色
85             Chart1.Series["Series2"].IsValueShownAsLabel = true; //顯示數據
86             Page.Controls.Add(Chart1);
87  
88             //Data Table
89             string output = "..."; //output data table
90             Label label = new Label();
91             label.Text = output;
92             Page.Controls.Add(label);
93         }
94     }
95 }
 
跑出來的圖差不多就長這樣,其中 Series1 是藍色的,Series2 是橘色
 
直條圖跟橫條圖其實只要改變 SeriesChartType.Column 或 SeriesChartType.Bar 就好了,其他東西都不用做更動
只是裡面有一個 Chart1.Series["Series1"].LabelFormat = "#,###"; //金錢格式 
改成橫條圖時會出錯,可能設定的格式不編準之類的?有時間在摸索
 
另外筆記一下:
可以看到裡面有這些宣告
1 Chart Chart1 = new Chart();
2 Chart1.ChartAreas.Add("ChartArea1"); //圖表區域集合
3 Chart1.Series.Add("Series1"); //數據序列集合
4 Chart1.Series.Add("Series2");
5 Chart1.Legends.Add("Legends1"); //圖例集合
很多範例都可以看到  Chart1.Series["Default"
一開始接觸看不太懂,自己在 .cs 新增了 Chart1.Series.Add("Series1");
然後設確定用 Chart1.Series["Default"] ...,導致一直出現找不到 Default 之類的錯誤
因為範例大多都先在 .aspx 拉好,順便設定好,所以就亂用
後來才發現原來 Default 是自己命名的...
所以 Chart1.Series.Add("Series1"); ,就必須 Chart1.Series["Series1"]....
還有 Chart1.Series["Series1"].ChartType ... 等於 Chart1.Series[0].ChartType ...
一開始宣告一定要命名,之後要用 Chart1.Series["第n個Series"] 還是 Chart1.Series[n] 都可以
當然 ChartAreas、Legends 是一樣的道理
 
            

參考資料:

Samples Environment for Microsoft Chart Controls  http://archive.msdn.microsoft.com/mschart
posted on 2012-02-09 17:33  clq  阅读(2573)  评论(1编辑  收藏  举报