using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using OWC11;
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namespace WebApplication1
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{
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/**//// <summary>
/// WebForm3 的摘要说明。
/// </summary>
public class WebForm3 : System.Web.UI.Page
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{
protected System.Web.UI.WebControls.PlaceHolder ChartHolder;
private void Page_Load(object sender, System.EventArgs e)
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{
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// 在此处放置用户代码以初始化页面
//创建ChartSpace对象来放置图表
OWC11.ChartSpace objCSpace = new OWC11.ChartSpaceClass ();
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//在ChartSpace对象中添加图表,Add方法返回chart对象
OWC11.ChChart objChart = objCSpace.Charts.Add (0);
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//指定图表的类型。类型由OWC11.ChartChartTypeEnum枚举值得到
objChart.Type = OWC11.ChartChartTypeEnum.chChartTypePie ;
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//指定图表是否需要图例
objChart.HasLegend = true;
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//给定标题
objChart.HasTitle = true;
objChart.Title.Caption= "上半年分布图";
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//计算数据
//categories 和 values 可以用tab分割的字符串来表示*/
string strSeriesName = "图例 1";
string strCategory = "1" + '\t' + "2" + '\t' + "3" + '\t'+"4" + '\t' + "5" + '\t' + "6" + '\t';
string strValue = "9" + '\t' + "8" + '\t' + "4" + '\t'+"10" + '\t' + "12" + '\t' + "6" + '\t';
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//添加一个series
objChart.SeriesCollection.Add(0);
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//给定series的名字
objChart.SeriesCollection[0].SetData (OWC11.ChartDimensionsEnum.chDimSeriesNames,
(int)OWC11.ChartSpecialDataSourcesEnum.chDataLiteral, strSeriesName);
//给定分类
objChart.SeriesCollection[0].SetData (OWC11.ChartDimensionsEnum.chDimCategories,
(int)OWC11.ChartSpecialDataSourcesEnum.chDataLiteral, strCategory);
//给定值
objChart.SeriesCollection[0].SetData
(OWC11.ChartDimensionsEnum.chDimValues,
(int)OWC11.ChartSpecialDataSourcesEnum.chDataLiteral, strValue);
OWC11.ChDataLabels dls = objChart.SeriesCollection[0].DataLabelsCollection.Add();
dls.HasValue = true;
dls.HasPercentage=true;
dls.Font .Name="宋体";
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//输出成GIF文件.
string strAbsolutePath = (Server.MapPath(".")) + "\\test.gif";
objCSpace.ExportPicture(strAbsolutePath, "GIF", 600, 450);
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//创建GIF文件的相对路径.
string strRelativePath = "./test.gif";
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//把图片添加到placeholder.
string strImageTag = "<IMG SRC='"+strRelativePath+"'/>";
ChartHolder.Controls.Add(new LiteralControl(strImageTag));
}
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Web 窗体设计器生成的代码#region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
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{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}
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/**//// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
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{
this.Load += new System.EventHandler(this.Page_Load);
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}
#endregion
}
}
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