使用owc11组件画柱形图、折线图、面积图等

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Microsoft.Office.Interop.Owc11;
using System.Collections.Generic;
using System.Collections;

namespace Owc.Web.Common
{
/// <summary>
/// OWCdrawing 的摘要说明
/// </summary>
public class OWCdrawing
{
public OWCdrawing()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
private static string strSeriesName = "图例1";

public static string title;//标题名称

public static string xCaption;//X轴说明

public static string yCaption;//Y轴说明

public static string strAbsolutePath;//图片物理路径

public static string date;

public static string Drawing(System.Collections.Hashtable ht, ChartChartTypeEnum value, string imgName)
{
int imgHight = 300;
int count = ht.Count;
string[] xNum = new string[count];
//存放数据
string[] yNum = new string[count];

int i = 0;
//为数组赋值
foreach (DictionaryEntry de in ht)
{
string []temp = de.Value.ToString().Split(',');
xNum[i] = temp[0];
yNum[i] = temp[1];
i++;
}
//为x轴指定特定字符串，以便显示数据
string strXdata = String.Empty;
foreach (string strData in xNum)
{
strXdata += strData + "/t";
}
string strYdata = String.Empty;
//为y轴指定特定的字符串，以便与x轴相对应
foreach (string strValue in yNum)
{
strYdata += strValue + "/t";
}

//创建ChartSpace对象来放置图表
ChartSpace laySpace = new ChartSpaceClass();

//在ChartSpace对象中添加图表
ChChart InsertChart = laySpace.Charts.Add(0);

//指定绘制图表的类型。类型可以通过OWC.ChartChartTypeEnum枚举值得到
//InsertChart.Type = ChartChartTypeEnum.chChartTypeLine;//折线图
//InsertChart.Type = ChartChartTypeEnum.chChartTypeArea;//面积图
//InsertChart.Type = ChartChartTypeEnum.chChartTypeColumnClustered;//纵向柱形图
//InsertChart.Type = ChartChartTypeEnum.chChartTypeBarClustered;//横向柱形图
//InsertChart.Type = ChartChartTypeEnum.chChartTypeColumnClustered3D;//纵向3D柱形图
//InsertChart.Type = ChartChartTypeEnum.chChartTypeBarClustered3D;
//为了数据量太大引起的图表样式的改变，这里规定数据超过10条后保存为横向柱形图
if (ht.Count > 10)
{
if (value.ToString() != "chChartTypeBarClustered3D" && value.ToString() != "chChartTypeBarClustered")
{
value = ChartChartTypeEnum.chChartTypeBarClustered;
}
imgHight = ht.Count * 40;//显示的图片高度根据数据条数扩展
}
InsertChart.Type = value;

//指定图表是否需要图例标注
InsertChart.HasLegend = false;

InsertChart.HasTitle = true;//为图表添加标题
InsertChart.Title.Caption = title;//标题名称

//为x,y轴添加图示说明
InsertChart.Axes[0].HasTitle = true;
InsertChart.Axes[0].Title.Caption = xCaption;//x轴说明
InsertChart.Axes[1].HasTitle = true;
//InsertChart.Axes[1].Scaling.SplitMinimum = 200;
InsertChart.Axes[1].Title.Caption = yCaption;//y轴说明

//添加一个series系列
InsertChart.SeriesCollection.Add(0);

//给定series系列的名字
InsertChart.SeriesCollection[0].SetData(ChartDimensionsEnum.chDimSeriesNames, +(int)ChartSpecialDataSourcesEnum.chDataLiteral, strSeriesName);

//给定分类
InsertChart.SeriesCollection[0].SetData(ChartDimensionsEnum.chDimCategories, +(int)ChartSpecialDataSourcesEnum.chDataLiteral, strXdata);

//给定值
InsertChart.SeriesCollection[0].SetData(ChartDimensionsEnum.chDimValues, (int)ChartSpecialDataSourcesEnum.chDataLiteral, strYdata);
//输出文件.

laySpace.ExportPicture(strAbsolutePath, "GIF", 951, imgHight);

//获取创建GIF文件的相对路径.
string strRelativePath = "../Record/ReportImage/" + imgName;

//把图片添加到placeholder中，并在页面上显示
string strImageTag = "<IMG SRC="" + strRelativePath + "" mce_SRC="" + strRelativePath + ""/>";
return strImageTag;
}
}
}

Drawing(System.Collections.Hashtable ht, ChartChartTypeEnum value, string imgName)

说明：这里以hashtable作为图表的数据源，存放的方式为：key,"value,value"，ChartChartTypeEnum value为页面给用户选择的图标呈现方式（折线图、面积图等）,string imgName为图片名称