演示：http://www.zwtd.com/2/treeview/treeview.asp
[code]<html>
<head>
<title>ASP TreeView Exemple</title>
<meta name="author" content="Simon La Rochelle">
<meta name="description" content="This is an easy way to make a vb-like TreeView in ASP">
<script language='javascript'>
function ToggleDisplay(oButton, oItems) {
if ((oItems.style.display == "") || (oItems.style.display == "none")) {
oItems.style.display = "block";
oButton.src = "minus.gif";
} else {
oItems.style.display = "none";
oButton.src = "plus.gif";
}
return false;
}
function HideDisplay(oItems) {
oItems.style.display = "none";
}
function ShowDisplay(oItems) {
oItems.style.display = "block";
}
</script>
</head>
<body bgcolor='#FFFFFF'>
<form action='TreeView.asp' method='post'>
<%
'HERE'S THE FIRST EXEMPLE (without checkboxes and links)
WriteHead "MyTreeView",1,"Exemple1",0,True,False,"",False
WriteHead "MyTreeView",2,"Child1",1,True,False,"",False
WriteHead "MyTreeView",3,"Child1-A",2,False,False,"",False
WriteFoot
WriteHead "MyTreeView",4,"Child1-B",2,False,False,"",False
WriteFoot
WriteHead "MyTreeView",5,"Child1-C",2,False,False,"",False
WriteFoot
WriteHead "MyTreeView",6,"Child1-D",2,False,False,"",False
WriteFoot
WriteFoot
WriteHead "MyTreeView",7,"Child2",1,False,False,"",False
WriteFoot
WriteHead "MyTreeView",8,"Child3",1,False,False,"",False
WriteFoot
WriteHead "MyTreeView",9,"Child4",1,False,False,"",False
WriteFoot
WriteHead "MyTreeView",10,"Child5",1,False,False,"",False
WriteFoot
WriteFoot
'Response.Write "<p>"
'HERE'S THE SECOND EXEMPLE (with checkboxes)
WriteHead "My2TreeView",1,"Exemple2",0,True,False,"",False
WriteHead "My2TreeView",2,"Child1",1,True,False,"",False
WriteHead "My2TreeView",3,"Child1-A",2,False,True,"",False
WriteFoot
WriteHead "My2TreeView",4,"Child1-B",2,False,True,"",False
WriteFoot
WriteHead "My2TreeView",5,"Child1-C",2,False,True,"",False
WriteFoot
WriteHead "My2TreeView",6,"Child1-D",2,False,True,"",False
WriteFoot
WriteFoot
WriteHead "My2TreeView",7,"Child2",1,False,True,"",False
WriteFoot
WriteHead "My2TreeView",8,"Child3",1,False,True,"",False
WriteFoot
WriteHead "My2TreeView",9,"Child4",1,False,True,"",False
WriteFoot
WriteHead "My2TreeView",10,"Child5",1,False,True,"",False
WriteFoot
WriteFoot
'Response.Write "<p>"
'HERE'S THE THIRD EXEMPLE (with links)
WriteHead "My3TreeView",1,"Development Sites",0,True,False,"",true
WriteHead "My3TreeView",2,"Planet Source Code",1,True,False,"http://www.planetsourcecode.com",False
WriteHead "My3TreeView",3,"Visual Basic",2,False,False,"http://www.planetsourcecode.com/xq/ASP/lngWId.1/qx/vb/default.htm",False
WriteFoot
WriteHead "My3TreeView",4,"Java / Javascript",2,False,False,"http://www.planetsourcecode.com/xq/ASP/lngWId.2/qx/vb/default.htm",False
WriteFoot
WriteHead "My3TreeView",5,"C / C++",2,False,False,"http://www.planetsourcecode.com/xq/ASP/lngWId.3/qx/vb/default.htm",False
WriteFoot
WriteHead "My3TreeView",6,"ASP / VbScript",2,False,False,"http://www.planetsourcecode.com/xq/ASP/lngWId.4/qx/vb/default.htm",False
WriteFoot
WriteHead "My3TreeView",7,"SQL",2,False,False,"http://www.planetsourcecode.com/xq/ASP/lngWId.5/qx/vb/default.htm",False
WriteFoot
WriteHead "My3TreeView",8,"Perl",2,False,False,"http://www.planetsourcecode.com/xq/ASP/lngWId.6/qx/vb/default.htm",False
WriteFoot
WriteHead "My3TreeView",9,"Delphi",2,False,False,"http://www.planetsourcecode.com/xq/ASP/lngWId.7/qx/vb/default.htm",False
WriteFoot
WriteHead "My3TreeView",10,"PHP",2,False,False,"http://www.planetsourcecode.com/xq/ASP/lngWId.8/qx/vb/default.htm",False
WriteFoot
WriteFoot
WriteHead "My3TreeView",11,"DevX",1,False,False,"http://www.devx.com",False
WriteFoot
WriteHead "My3TreeView",12,"MSDN",1,False,False,"http://msdn.microsoft.com",False
WriteFoot
WriteHead "My3TreeView",13,"4GuysFromRolla",1,False,False,"http://www.4guysfromrolla.com",False
WriteFoot
WriteHead "My3TreeView",14,"LearnASP",1,False,False,"http://www.learnasp.com",False
WriteFoot
WriteFoot
%>
</form>
</body>
</html>
<%
'*********************************
'TREEVIEW SUBS
'*********************************
Sub WriteHead(TreeName,ItemID,ItemName,Level,IsParent,UseCheckBox,MyLink,IsOpn)
Dim IsIE 'as boolean
IsIE = (InStr(request.servervariables("HTTP_USER_AGENT"), "MSIE") > 0)
'Spacing depends on what level you're at
Select Case Level
Case 1 : Response.Write "<IMG SRC='dot1.gif' BORDER=0 ALT=''>"
Case 2 : Response.Write "<IMG SRC='t_dot.gif' WIDTH=36 HEIGHT=18 BORDER=0 ALT=''><IMG SRC='dot1.gif' BORDER=0 ALT=''>"
Case 3 : Response.Write "<IMG SRC='t_dot.gif' WIDTH=72 HEIGHT=18 BORDER=0 ALT=''><IMG SRC='dot1.gif' BORDER=0 ALT=''>"
Case 4 : Response.Write "<IMG SRC='t_dot.gif' WIDTH=108 HEIGHT=18 BORDER=0 ALT=''><IMG SRC='dot1.gif' BORDER=0 ALT=''>"
Case 5 : Response.Write "<IMG SRC='t_dot.gif' WIDTH=144 HEIGHT=18 BORDER=0 ALT=''><IMG SRC='dot1.gif' BORDER=0 ALT=''>"
Case 6 : Response.Write "<IMG SRC='t_dot.gif' WIDTH=180 HEIGHT=18 BORDER=0 ALT=''><IMG SRC='dot1.gif' BORDER=0 ALT=''>"
Case 7 : Response.Write "<IMG SRC='t_dot.gif' WIDTH=216 HEIGHT=18 BORDER=0 ALT=''><IMG SRC='dot1.gif' BORDER=0 ALT=''>"
Case 8 : Response.Write "<IMG SRC='t_dot.gif' WIDTH=252 HEIGHT=18 BORDER=0 ALT=''><IMG SRC='dot1.gif' BORDER=0 ALT=''>"
Case 9 : Response.Write "<IMG SRC='t_dot.gif' WIDTH=288 HEIGHT=18 BORDER=0 ALT=''><IMG SRC='dot1.gif' BORDER=0 ALT=''>"
Case 10 : Response.Write "<IMG SRC='t_dot.gif' WIDTH=324 HEIGHT=18 BORDER=0 ALT=''><IMG SRC='dot1.gif' BORDER=0 ALT=''>"
End Select
'If IsParent then put a plus sign else put a blank space
If IsParent then
'JsCode only if isIE
If isIE then
If IsOpn then
Response.Write "<IMG SRC='minus.gif' WIDTH=12 HEIGHT=10 ID='" & TreeName & ItemID & "Btn' ONCLICK='javascript:ToggleDisplay(" & TreeName & ItemID & "Btn, " & TreeName & ItemID & "chlds);' ALT BORDER='0'>"
Else
Response.Write "<IMG SRC='plus.gif' WIDTH=12 HEIGHT=10 ID='" & TreeName & ItemID & "Btn' ONCLICK='javascript:ToggleDisplay(" & TreeName & ItemID & "Btn, " & TreeName & ItemID & "chlds);' ALT BORDER='0'>"
End If
Else
If IsOpn then
Response.Write "<IMG SRC='minus.gif' WIDTH=12 HEIGHT=10 ID='" & TreeName & ItemID & "Btn' ALT BORDER='0'>"
Else
Response.Write "<IMG SRC='plus.gif' WIDTH=12 HEIGHT=10 ID='" & TreeName & ItemID & "Btn' ALT BORDER='0'>"
End if
End If
Else
If Level = 0 then
Response.Write "<IMG SRC='nosign2.gif' WIDTH=12 HEIGHT=10 ALT BORDER='0'>"
Else
Response.Write "<IMG SRC='nosign.gif' WIDTH=12 HEIGHT=10 ALT BORDER='0'>"
End If
End if
'If UseCheckBox then show a checkbox else add space
If UseCheckBox then
Response.Write "<INPUT TYPE='checkbox' NAME='" & TreeName &"chk' VALUE='" & ItemID & "'>"
Else
Response.Write "<img src='t_dot.gif' WIDTH=4 HEIGHT=18 BORDER=0 ALT=''>"
End If
Response.Write "<font face='Verdana,Arial,Helvetica' size='2' color='#333399'>"
'If MyLink = "" then do not use link
If MyLink = "" then
'If first Level, use bold
If Level = 0 then Response.Write "<b>" & ItemName & "</b>" else Response.Write ItemName
Else
'If first Level, use bold
If Level = 0 then Response.Write "<b><a href='" & MyLink & "'><font color='#333399'>" & ItemName & "</a></b>" else Response.Write "<a href='" & MyLink & "'><font color='#333399'>" & ItemName & "</a>"
End If
Response.Write "</font>"
Response.Write "<br>"
'Always add DIV because WriteFoot() will close it
Response.Write "<div ID='" & TreeName & ItemID & "chlds'>"
'JsCode only if IsIE and if the section is not open
If IsIE then
If IsOpn then
Response.Write "<script language='javascript'>ShowDisplay(" & TreeName & ItemID & "chlds);</script>"
Else
Response.Write "<script language='javascript'>HideDisplay(" & TreeName & ItemID & "chlds);</script>"
End If
End If
End Sub
Sub WriteFoot()
Response.Write "</div>"
End Sub
%>[/code]
