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"]%>" οnclick="fillDay(this)" >结束日期：<input id="e" value="<%= Request.QueryString["e"]%>" type="text" οnclick="fillDay(this)" /><input type="button" value="查看" οnclick="location.href='?s='+$F('s')+'&e='+$F('e')" /><br />
<asp:placeholder id="ChartHolder" runat="server"></asp:placeholder>
后台代码：
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));
}
}
}
