大家在编写ASP程序的时候，可能要对各种指标以图形的方式显示出来。如果仅仅是柱状图，可以采用画表格的方法。许多投票程序多采用这种方法。如果是饼状图或从数据库中检索数据后再显示，就有些困难了.办法也有，自己可以封装excel来完成上述功能，或者用deiphi做一个activeform传入参数,或者用php来写(做出的图有些难看),java也可以。当然，用一个比较成熟的图形组件来完成更好一些。microsoft office web compoent非常不错。我在开发一个项目的时候，用到了这个组件。 CHART.ASP程序。 <% Option Explicit %> <!--#include file="adovbs.inc"--> <HTML> <HEAD> <TITLE>柱状图的例子</TITLE> <% Function ExportChartToGIF(objCSpace, strAbsFilePath, strRelFilePath) Dim strFileName Randomize strFileName = Timer & Rnd & ".gif" objCSpace.ExportPicture strAbsFilePath & "\" & strFileName, "gif", 650, 400 ExportChartToGIF = strRelFilePath & "/" & strFileName End Function Sub CleanUpGIF(GIFpath) Dim objFS Dim objFolder Dim gif set objFS = Server.CreateObject("Scripting.FileSystemObject") set objFolder = objFS.GetFolder(GIFpath) for each gif in objFolder.Files if instr(gif.Name, ".gif") > 0 and DateDiff("n", gif.DateLastModified, now) > 10 then objFS.DeleteFile GIFpath & "\" & gif.Name, True end if next set objFolder = nothing set objFS = nothing End Sub %> </HEAD> <BODY BGCOLOR="#FFFFFF"> <div align="center"> <br> <br> <% dim sj1,sj2 sj1=Request.QueryString("s1") sj2=Request.QueryString("s2") dim objChartSpace dim objChart dim objSeries dim objConn dim objRS dim c dim series dim strChartAbsPath dim strChartRelPath dim strChartFile dim axis strChartAbsPath = Server.MapPath("/xjsi-web/dcss/chart") strChartRelPath = "/xjsi-web/dcss/chart" '设置组件 set objChartSpace = Server.CreateObject("OWC.Chart") set objChart = objChartSpace.Charts.Add set c = objChartSpace.Constants objChartSpace.Border.Color="red" '以柱状图显示 objchart.type=1 objChart.HasLegend = True'是否显示图例 objChartSpace.HasChartSpaceTitle=true '显示标题 objChartSpace.ChartSpaceTitle.Caption ="柱状图的例子使用office web组件--九月天空中文技术网站" set objConn = Server.CreateObject("ADODB.Connection") objConn.Open application("strconn") set objRS = Server.CreateObject("ADODB.Recordset") set objRS.ActiveConnection = objConn objRS.CursorType = adOpenStatic objRS.CursorLocation = adUseClient objRS.Open "select dwsj,sum(jfrs) as jfrs from dcss_do_jfgcfxb where dwsj>='"&sj1&"' and dwsj<'"&sj2&"' group by dwsj order by dwsj asc" set objChartSpace.DataSource = objRS '显示图例内容 objChart.SetData c.chDimSeriesNames, 0, "jfrs" for each objSeries in objChart.SeriesCollection objSeries.SetData c.chDimCategories, 0, "dwsj" objSeries.SetData c.chDimValues, 0, "jfrs" next for each axis in objChart.Axes axis.HasTitle = True if axis.Type = c.chCategoryAxis then axis.Title.Caption = "月份" else axis.Title.Caption = "人数" end if next strChartFile = ExportChartToGIF(objChartSpace, strChartAbsPath, strChartRelPath) Response.Write "<IMG SRC=""" & strChartFile & """>" & "<P>" CleanUpGIF strChartAbsPath objRS.Close set objRS = nothing set objConn = nothing set objSeries = nothing set objChart = nothing set objChartSpace = nothing %> </div> </BODY> </HTML> 使用这个组件的注意事项： 1。在office2000的光盘上，有一个msowc.msi的可执行文件.OK 2。建议大家用visual interdev6.0开发，代码的自动提示功能此时会发挥出极大的作用。
2002-8-26 18:27:42 浏览次数:1179
大家在编写ASP程序的时候，可能要对各种指标以图形的方式显示出来。如果仅仅是柱状图，可以采用画表格的方法。许多投票程序多采用这种方法。如果是饼状图或从数据库中检索数据后再显示，就有些困难了.办法也有，自己可以封装excel来完成上述功能，或者用deiphi做一个activeform传入参数,或者用php来写(做出的图有些难看),java也可以。当然，用一个比较成熟的图形组件来完成更好一些。microsoft office web compoent非常不错。我在开发一个项目的时候，用到了这个组件。 CHART.ASP程序。 <% Option Explicit %>
<!--#include file="adovbs.inc"-->
<HTML>
<HEAD>
<TITLE>柱状图的例子</TITLE>
<%
Function ExportChartToGIF(objCSpace, strAbsFilePath, strRelFilePath)
Dim strFileName
Randomize
strFileName = Timer & Rnd & ".gif"
objCSpace.ExportPicture strAbsFilePath & "\" & strFileName, "gif", 650, 400
ExportChartToGIF = strRelFilePath & "/" & strFileName
End Function Sub CleanUpGIF(GIFpath)
Dim objFS
Dim objFolder
Dim gif
set objFS = Server.CreateObject("Scripting.FileSystemObject")
set objFolder = objFS.GetFolder(GIFpath)
for each gif in objFolder.Files
if instr(gif.Name, ".gif") > 0 and
DateDiff("n", gif.DateLastModified, now) > 10 then
objFS.DeleteFile GIFpath & "\" & gif.Name, True
end if
next
set objFolder = nothing
set objFS = nothing
End Sub %>
</HEAD>
<BODY BGCOLOR="#FFFFFF">
<div align="center">
<br>
<br>
<%
dim sj1,sj2
sj1=Request.QueryString("s1")
sj2=Request.QueryString("s2") dim objChartSpace
dim objChart
dim objSeries
dim objConn
dim objRS
dim c
dim series
dim strChartAbsPath
dim strChartRelPath
dim strChartFile
dim axis strChartAbsPath = Server.MapPath("/xjsi-web/dcss/chart")
strChartRelPath = "/xjsi-web/dcss/chart"
'设置组件 set objChartSpace = Server.CreateObject("OWC.Chart")
set objChart = objChartSpace.Charts.Add
set c = objChartSpace.Constants objChartSpace.Border.Color="red"
'以柱状图显示
objchart.type=1
objChart.HasLegend = True'是否显示图例
objChartSpace.HasChartSpaceTitle=true '显示标题
objChartSpace.ChartSpaceTitle.Caption ="柱状图的例子使用office web组件--九月天空中文技术网站"
set objConn = Server.CreateObject("ADODB.Connection")
objConn.Open application("strconn")
set objRS = Server.CreateObject("ADODB.Recordset")
set objRS.ActiveConnection = objConn
objRS.CursorType = adOpenStatic
objRS.CursorLocation = adUseClient
objRS.Open "select dwsj,sum(jfrs) as jfrs
from dcss_do_jfgcfxb where dwsj>='"&sj1&"' and dwsj<'"&sj2&"'
group by dwsj order by dwsj asc" set objChartSpace.DataSource = objRS
'显示图例内容
objChart.SetData c.chDimSeriesNames, 0, "jfrs"
for each objSeries in objChart.SeriesCollection
objSeries.SetData c.chDimCategories, 0, "dwsj"
objSeries.SetData c.chDimValues, 0, "jfrs"
next for each axis in objChart.Axes
axis.HasTitle = True
if axis.Type = c.chCategoryAxis then
axis.Title.Caption = "月份"
else
axis.Title.Caption = "人数"
end if
next strChartFile = ExportChartToGIF(objChartSpace, strChartAbsPath, strChartRelPath)
Response.Write "<IMG SRC=""" & strChartFile & """>" & "<P>"
CleanUpGIF strChartAbsPath objRS.Close
set objRS = nothing
set objConn = nothing
set objSeries = nothing
set objChart = nothing
set objChartSpace = nothing
%>
</div>
</BODY>
</HTML>
使用这个组件的注意事项：
1。在office2000的光盘上，有一个msowc.msi的可执行文件.OK
2。建议大家用visual interdev6.0开发，代码的自动提示功能此时会发挥出极大的作用。
这是asp的,
很容易扩展到vb的
祝你好运