ASP進(jìn)階：用ASP制作統(tǒng)計(jì)餅圖、柱狀圖等_ASP教程

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1.WebClass 簡介： WebClass 是一個(gè)VB組件，駐留在WEB SERVER 上，并對(duì)瀏覽器的輸入做出響應(yīng)。對(duì)用戶來說，一個(gè) IIS 應(yīng)用程序好象是由一系列的HTML頁面組成。對(duì)開發(fā)者來說，一個(gè) IIS 應(yīng)用程

我們工作中經(jīng)常需要將數(shù)據(jù)轉(zhuǎn)化成柱狀圖，餅圖等，以方便直觀的分析數(shù)據(jù)，這里給大家介紹一個(gè)ASP中制作餅圖、柱狀圖的組件：csDrawGraph，csdgt.zip,因?yàn)槭墙M件，所以我們?cè)谑褂弥靶枰肦EGSVR32.EXE 注冊(cè)一下，csDrawGraph，可以在ASP中創(chuàng)建餅圖，柱狀圖以及線圖，其支持的格式有GIF, PNG, JPG and BMP.

chartdemo.asp

<%@ language=vbscript %>
<html>
<head>
<title>csDrawGraph Demonstration</title>
</head>
<body bgcolor="#FFFFFF">
This simple demonstration shows two graphs using the same data. The first is
a bar chart:
<IMG src="chartimages.asp?Type=Bar" width="400" height="300">

The second is a pie chart. The background colour is set to light
grey to show the overall size of the image.
<IMG src="chartimages.asp?Type=Pie" width="400" height="300">

</body>
</html>

chartimages.asp

<%@ language=vbscript %>

<%
Response.Expires = 0
Response.Buffer = true
Response.Clear
Response.ContentType = "Image/Gif"

Set Chart = Server.CreateObject("csDrawGraphTrial.Draw")

Chart.AddData "NO> 1", 17, "ff0000"
Chart.AddData "NO> 2", 28, "00ff00"
Chart.AddData "NO> 3", 5, "0000ff"

If Request.QueryString("Type") = "Pie" Then
Chart.Title = "Sample Pie Chart"
Chart.BGColor = "eeeeee"
Chart.LabelBGColor = "eeeeee"
Chart.TitleBGColor = "eeeeee"
Response.BinaryWrite Chart.GifPie
Else
Chart.Title = "Sample Bar Chart"
Response.BinaryWrite Chart.GifBar
End If

Response.End
%>

程序很簡單，再些不詳細(xì)說明，下面看一個(gè)將數(shù)據(jù)庫中的數(shù)據(jù)轉(zhuǎn)換到圖表的例子：

lines.asp:

<html>
<head>
<title>Line graph showing all the results</title>

</head>

<body>
<table align=center width=400>
<tr><td colspan=4><img src="gif_lines.asp" width=400 height=300></td></tr>
</table>
Links to the other result pages:
<a href=barsbyday.asp>Bar chart showing all results for any one day</a>.
<a href=barsbycolour.asp>Bar charts showing results for each colour separately</a>.
</body>
</html>

gif_lines.asp:

分享：IIS6.0 ASP 錯(cuò)誤解析
事件 ID 描述 0100 內(nèi)存不足。無法分配所需的內(nèi)存。