ASP進階：用ASP制作統計餅圖、柱狀圖等_ASP教程

2024-05-04 11:03:48

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來源：轉載

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推薦：WebClass入門(1)
1.WebClass 簡介：WebClass 是一個VB組件，駐留在WEB SERVER 上，并對瀏覽器的輸入做出響應。對用戶來說，一個 IIS 應用程序好象是由一系列的HTML頁面組成。對開發者來說，一個 IIS 應用程

我們工作中經常需要將數據轉化成柱狀圖，餅圖等，以方便直觀的分析數據，這里給大家介紹一個ASP中制作餅圖、柱狀圖的組件：csDrawGraph，csdgt.zip,因為是組件，所以我們在使用之前需要用REGSVR32.EXE 注冊一下，csDrawGraph，可以在ASP中創建餅圖，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，再些不詳細說明，下面看一個將數據庫中的數據轉換到圖表的例子：

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 錯誤解析
事件 ID 描述 0100 內存不足。無法分配所需的內存。