<treenodes>
<treenode>
<treenode>
test1
</treenode>
<treenode>
test2
</treenode>
</treenode>
<treenode>
test3
</treenode>
<treenode>
test4
</treenode>
<treenode>
test5
</treenode>
</treenodes>
<treenode>
<treenode>
test1
</treenode>
<treenode>
test2
</treenode>
</treenode>
<treenode>
test3
</treenode>
<treenode>
test4
</treenode>
<treenode>
test5
</treenode>
</treenodes>
<%@ Register TagPrefix="IE" Namespace="Microsoft.Web.UI.WebControls" Assembly="Microsoft.Web.UI.WebControls" %><html>
<head>
<title>
TreeViewDataSet.aspx
</title>
</head>
<body>
<form runat="Server">
<IE:TreeView
AutoPostBack="True"
TreeNodeSrc="Categories.aspx"
Runat="Server"/>
</form>
</body>
</html>Categories.aspx
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %><Script runat="Server">
sub page_load
Dim mycon as SqlConnection
Dim cmdCategories As SqlCommand
Dim dsCategories As DataSet
Dim strQuery As String mycon=New Sqlconnection("Server=localhost;UID=sa;PWD=secret;Database=Northwind")
strQuery="select categoryname as Text,'products.aspx?catid='
+LTRIM(STR(CategoryID))" & _
"As TreeNodeSrc from Categories As TreeNode for xml auto, XMLDATA"
cmdCategories=new SqlCommand(strQuery,mycon)
dsCategories=New DataSet
dsCategories.ReadXML(cmdCategories.ExecuteXmlReader(),XmlReadMode.Fragment)
dsCategories.DataSetName="TREENODES"
dsCategories.WriteXml(Response.OutputStream)
end sub
</script>Products.aspx
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %><Script runat="Server">
sub page_load
Dim mycon as SqlConnection
Dim cmdProducts As SqlCommand
Dim dsProducts As DataSet
Dim strQuery As String mycon=New Sqlconnection("Server=localhost;UID=sa;PWD=secret;Database=Northwind")
strQuery="select Productname as Text from products As TreeNode" & _
" where CategoryID=@categoryID for xml auto, XMLDATA "
cmdproducts=new SqlCommand(strQuery,mycon)
cmdproducts.Parameters.Add(New SqlParameter("@categoryID",Request.QueryString("catID")))
mycon.open()
dsproducts=New DataSet
dsproducts.ReadXML(cmdproducts.ExecuteXmlReader(),XmlReadMode.Fragment)
dsproducts.DataSetName="TREENODES"
dsproducts.WriteXml(Response.OutputStream)
mycon.close()
end sub
</script>
http://www.csdn.net/Develop/Read_Article.asp?Id=26150
http://www.csdn.net/Develop/Read_Article.asp?Id=26151
谢谢你的答复,你如此的方法我看过的,但是我没有尝试成功,我的数据表不是象Northwind那样规范,我需要三个数据表的数据提出来生成一个XML文件,大致的格式如下: 表1字段1
表2字段1
表3字段1
表3字段2
表3字段3
表3字段4
表1字段2
表2字段2
表3字段5
表3字段6
表3字段7
表3字段8
....你这种方法我没有尝试成功,请问上边的方法有什么限制吗??
我对XML也不是太熟悉,如果还有疑问会打扰你的,还望不吝赐教^_^
也知道你方法的意思,我这边的情况是:一棵树的节点很多,如果是你这种解决方案的话,会不会刷新的很厉害??如果是这样,我何必不用XML来解决呢? 还望多多指教^_^
来实现,此种方法局限:提出的数据到客户端,不能即时与数据库保持同步2.忍耐下刷新吧^_^
我给你邮箱发送了一份1的解决方案(我手头的资料)希望对你有帮助!
[email protected]
谢谢老大!