1、首先下载owc11：owc11
2、引用OWC：打开"解决方案资源管理器"面板，鼠标右键单击"引用"，选择"添加引用"菜单，在弹出的"添加引用"对话框中单击"COM"卡片，找到"Microsoft Office Web Components 10.0(office 2003是11.0)"，单击"选择"和"确定"按钮，OWC就被添加到了引用中。
3、建立一个pic.aspx文件，aspx代码如下：
<script language="javascript" type="text/javascript" src="/js/Calendar30.js"></script>
选择开始日期和结束日期。如果时间范围超过365则显示年表，如果时间范围超过30则显示月份表，如果超过1则显示日期表，否则显示小时表。<br />
开始日期：<input id="s" type="text" value="<%= Request.QueryString["s"]%>" onclick="fillDay(this)" >结束日期：<input id="e" value="<%= Request.QueryString["e"]%>" type="text" onclick="fillDay(this)" /><input type="button" value="查看" onclick="location.href='?s='+$F('s')+'&e='+$F('e')" /><br />
<asp:placeholder id="ChartHolder" runat="server"></asp:placeholder>
using System;
using System.Data;
using System.Configuration;
using System.Collections;
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;
public partial class pic : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack && Request.QueryString["s"] != null && Request.QueryString["e"] != null)
{
string file;
DateTime s = DateTime.Parse(Request.QueryString["s"]);
DateTime et = DateTime.Parse(Request.QueryString["e"]);
string x = "";
string y = "";
string danwei = "时";
string sql = "";
int r = ((TimeSpan)(et - s)).Days;
//Response.Write(r);
//Response.Write("<br />");
if (r >= 365)
{
sql = "select datepart(yyyy,regtime) d,count(*) c from t_user where regtime between '{0}' and '{1}' group by datepart(yyyy,regtime) order by d";
danwei = "年";
}
else if (r >= 30)
{
sql = "select datepart(mm,regtime) d,count(*) c from t_user where regtime between '{0}' and '{1}' group by datepart(mm,regtime) order by d";
danwei = "月";
}
else if (r >= 1)
{
sql = "select datepart(dd,regtime) d,count(*) c from t_user where regtime between '{0}' and '{1}' group by datepart(dd,regtime) order by d";
danwei = "日";
}
else
sql = "select datepart(HH,regtime) d,count(*) c from t_user where regtime between '{0}' and '{1}' group by datepart(HH,regtime) order by d";
DateTime s1 = new DateTime(s.Year, s.Month, s.Day);
DateTime e1 = new DateTime(et.Year, et.Month, et.Day, 23, 59, 59);
sql = string.Format(sql, s1.ToString(), e1.ToString());
//Response.Write(sql);
//return;
DataSet ds = DAL.dbHelper.ExecuteDataset(sql);
if (ds != null && ds.Tables.Count > 0 && ds.Tables[0].Rows.Count > 0)
{
x = ds.Tables[0].Rows[0][0].ToString();
y = ds.Tables[0].Rows[0][1].ToString();
for (int i = 1; i < ds.Tables[0].Rows.Count; i++)
{
x += '\t' + ds.Tables[0].Rows[i][0].ToString();
y += '\t' + ds.Tables[0].Rows[i][1].ToString();
}
//创建ChartSpace对象来放置图表
ChartSpace objCSpace = new ChartSpaceClass();
//在ChartSpace对象中添加图表，Add方法返回chart对象
ChChart objChart = objCSpace.Charts.Add(0);
//指定图表的类型。类型由ChartChartTypeEnum枚举值得到
objChart.Type = ChartChartTypeEnum.chChartTypeColumnClustered;
//指定图表是否需要图例
objChart.HasLegend = true;
//给定标题
objChart.HasTitle = true;
objChart.Title.Caption = "注册用户/日期分布图";
//给定x,y轴的图示说明
objChart.Axes[0].HasTitle = true;
objChart.Axes[0].Title.Caption = "X ： 日期/单位： " + danwei;
objChart.Axes[1].HasTitle = true;
objChart.Axes[1].Title.Caption = "Y ： 数量";
//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";
//添加一个series
objChart.SeriesCollection.Add(0);
//给定series的名字
//objChart.SeriesCollection[0].SetData(ChartDimensionsEnum.chDimSeriesNames, +(int)ChartSpecialDataSourcesEnum.chDataLiteral, strSeriesName);
//给定分类
objChart.SeriesCollection[0].SetData(ChartDimensionsEnum.chDimCategories,
+(int)ChartSpecialDataSourcesEnum.chDataLiteral, x);
//给定值
objChart.SeriesCollection[0].SetData
(ChartDimensionsEnum.chDimValues,
(int)ChartSpecialDataSourcesEnum.chDataLiteral, y);
//输出成GIF文件.
file = "/tmp/" + Guid.NewGuid().ToString() + ".gif";
objCSpace.ExportPicture(Server.MapPath("~" + file), "GIF", 800, 400);
}
else
{
file = "/images/0.gif";
}
//把图片添加到placeholder.
string strImageTag = "<IMG SRC='" + file + "'/>";
ChartHolder.Controls.Add(new LiteralControl(strImageTag));
}
}
}
效果图：
Tags - owc , asp.net生产柱形图