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 System.Data.SqlClient; //添加数据操作引用
using Microsoft.Office.Interop.Owc11;//添加Office组件引用
public partial class OWCdrawing : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//连接数据库并获取特定字符串
string strSeriesName = "图例1";
string ConnectString = "Server=(local);DataBase=web;Uid=sa;Pwd=sa";
string Sql = "SELECT month,Allcount FROM Chart";
SqlConnection myConn = new SqlConnection(ConnectString);
myConn.Open();
SqlDataAdapter Da = new SqlDataAdapter(Sql, myConn);
DataSet ds = new DataSet();
Da.Fill(ds);
//存放月
string[] MonNum = new string[12];
//存放数据
string[] MonCount = new string[12];
//为数组赋值
for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
{
MonNum[i] = ds.Tables[0].Rows[i][0].ToString();
MonCount[i] = ds.Tables[0].Rows[i][1].ToString();
}
//为x轴指定特定字符串，以便显示数据
string strXdata = String.Empty;
foreach (string strData in MonNum)
{
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 MonCount)
{
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.chChartTypeBarClustered;//条形图
InsertChart.Type = ChartChartTypeEnum.chChartTypeColumnClustered;//柱形图
//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 = "2006年清清月儿每个月花销流水账";//标题名称
//为x,y轴添加图示说明
InsertChart.Axes[0].HasTitle = true;
InsertChart.Axes[0].Title.Caption = "";//月份
InsertChart.Axes[1].HasTitle = true;
InsertChart.Axes[1].Scaling.SplitMinimum = 200;
InsertChart.Axes[1].Title.Caption = "数量";
//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.
string strAbsolutePath = (Server.MapPath(".")) + "\\ShowData.gif";
laySpace.ExportPicture(strAbsolutePath, "GIF", 400, 250);
//创建GIF文件的相对路径.
string strRelativePath = "./ShowData.gif";
//把图片添加到placeholder中，并在页面上显示
string strImageTag = "";
this.PlaceHolder1.Controls.Add(new LiteralControl(strImageTag));
}
}
