当前位置: 首页 > 图文教程 > 网络编程 > ASP > 关于生成目录树结构的类

ASP
ASP编程入门进阶(十二):ASP技巧累加(一)
ASP编程入门进阶(十三):Ad & Content Rotator
ASP编程入门进阶(十四):Browser & Linking
ASP编程入门进阶(十五):组件Counters
一些简单的ASP练习
ASP编程入门进阶(十六):FSO组件之驱动器操作
ASP编程入门进阶(十七):FSO组件之文件夹操作
ASP编程入门进阶(十八):FSO组件之文件操作(上)
ASP编程入门进阶(十八):FSO组件之文件操作(中)
ASP编程入门进阶(十八):FSO组件之文件操作(下)
ASP编程入门进阶(十九):ASP技巧累加(二)
ASP中有关双引号,单引号以及&号的解释
ASP编程入门进阶(二十):ADO组件之显示数据记录
ASP编程入门进阶(二十):ADO组件之插入数据记录
ASP编程入门进阶(二十):ADO组件之分页程序
ASP编程入门进阶(二十):ADO组件之修改数据记录
ASP编程入门进阶(二十):ADO组件之删除数据记录
ASP初学者常犯的几个错误(ZT)
无组件上传图片之文件采用方案
ASP编程入门进阶(二十):ADO组件之查询数据记录

ASP 中的 关于生成目录树结构的类


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-11-03   浏览: 197 ::
收藏到网摘: n/a

本程序有两文件test.asp 和tree.asp 还有一些图标文件
1。test.asp 调用类生成树 代码如下
<%@ Language=VBScript %>
<html>
<head>
<link rel="stylesheet" href="tree.css">
<title>tree</title>
</head>
<!-- #include file="tree.asp" -->
<%

'========================================
' BUILDING A TREE PROGRAMATICALLY
'========================================
' This approach would be best suited for building
' dynamic trees using For..Next loops and such.

Set MyTree2 = New Tree
MyTree2.Top = 10
MyTree2.Left = 10
MyTree2.ExpandImage = "plus.gif"
MyTree2.CollapseImage = "minus.gif"
MyTree2.LeafImage = "webpage.gif"

' Notice the indentation used to reprensent the hierarchy
Set Node1 = MyTree2.CreateChild("script")
Set SubNode1 = Node1.CreateChild("server")
Set secSubNode1 = SubNode1.CreateChild("html")
secSubNode1.CreateChild "<A HREF=""http://127.0.0.1/"">asp</A>"
secSubNode1.CreateChild "<A HREF=""http://127.0.0.1/"">php</A>"
secSubNode1.CreateChild "<A HREF=""http://127.0.0.1/"">jsp</A>"

Set SubNode2 = Node1.CreateChild("os")
SubNode2.CreateChild "<A HREF=""#"">winnt</A>"
SubNode2.CreateChild "<A HREF=""#"">win2000</A>"

Set Node2 = MyTree2.CreateChild("Desktop")
Node2.CreateChild "<A HREF=""#"">Area Code Lookup</A>"
Node2.CreateChild "<A HREF=""#"">Arin Based Whois Search</A>"
Node2.CreateChild "<A HREF=""#"">World Time Zone Map</A>"

MyTree2.Draw()

Set MyTree2 = Nothing

%>

</BODY>
</HTML>
2。tree.asp 类的定义 代码如下
<%
'******************************************************
' Author: Jacob Gilley
' Email: [email protected]
' My Terms: You can use this control in anyway you see fit
' cause I have no means to enforce any guidelines
' or BS that most developers think they can get
' you to agree to by spouting out words like
' "intellectual property" and "The Code Gods".
' - Viva la Microsoft!
'******************************************************

Dim gblTreeNodeCount:gblTreeNodeCount = 1

Class TreeNode

Public Value
Public ExpandImage
Public CollapseImage
Public LeafImage
Public Expanded
Private mszName
Private mcolChildren
Private mbChildrenInitialized

Public Property Get ChildCount()
ChildCount = mcolChildren.Count
End Property

Private Sub Class_Initialize()
mszName = "node" & CStr(gblTreeNodeCount)
gblTreeNodeCount = gblTreeNodeCount + 1

mbChildrenInitialized = False
Expanded = False
End Sub

Private Sub Class_Terminate()
If mbChildrenInitialized And IsObject(mcolChildren) Then
mcolChildren.RemoveAll()
Set mcolChildren = Nothing
End If
End Sub

Private Sub InitChildList()
Set mcolChildren = Server.CreateObject("Scripting.Dictionary")
mbChildrenInitialized = True
End Sub

Private Sub LoadState()
If Request(mszName) = "1" Or Request("togglenode") = mszName Then
Expanded = True
End If
End Sub

Public Function CreateChild(szValue)

If Not mbChildrenInitialized Then InitChildList()

Set CreateChild = New TreeNode
CreateChild.Value = szValue
CreateChild.ExpandImage = ExpandImage
CreateChild.CollapseImage = CollapseImage
CreateChild.LeafImage = LeafImage

mcolChildren.Add mcolChildren.Count + 1, CreateChild

End Function

Public Sub Draw()

LoadState()

Response.Write "<table border=""0"">" & vbCrLf
Response.Write "<tr><td>" & vbCrLf

If Expanded Then
Response.Write "<a href=""javascript:collapseNode('" & mszName & "')""><img src=""" & CollapseImage & """ border=""0""></a>" & vbCrLf
ElseIf Not mbChildrenInitialized Then
Response.Write "<img src=""" & LeafImage & """ border=0>" & vbCrLf
Else
Respo