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Datalist nested Treeview

Source: Internet
Author: User
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Datalist nest Treeview and execute the Treeview selection event.

 

Code
<% @ Page Language = " C # " Autoeventwireup = " True " Codefile = " Treedemo. aspx. CS " Inherits = " Treedemo "   %>

<!Doctype HTML public "-// W3C // dtd xhtml 1.0 transitional // en" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

< Html Xmlns = "Http://www.w3.org/1999/xhtml" >
< Head Runat = "Server" >
< Title > </ Title >
</ Head >
< Body >
< Form ID = "Form1" Runat = "Server" >
< Div >

</ Div >
< ASP: datalist ID = "Datalist1" Runat = "Server"  
Onitemdatabound = "Datalistpolicitemdatabound" >
< Itemtemplate >
Aaaaaaaaaa
< ASP: Treeview ID = "Tree" Runat = "Server"  
Onselectednodechanged = "Tree_selectednodechanged"   > </ ASP: Treeview >
</ Itemtemplate >
</ ASP: datalist >

</ Form >
</ Body >
</ Html >

 

 

The day after tomorrowCode

 

Code
Using System;
Using System. Collections. Generic;
Using System. LINQ;
Using System. Web;
Using System. Web. UI;
Using System. Web. UI. webcontrols;
Using System. Data;

Public   Partial   Class Treedemo: system. Web. UI. Page
{
Protected   Void Page_load ( Object Sender, eventargs E)
{
If ( ! Ispostback)
{
Datatable dt =   New Datatable ();
DT. Columns. Add ( " Name " );
Datarow Dr = DT. newrow ();
Dr [ " Name " ] =   " Ayi " ;

DT. Rows. Add (DR );

Datalist1.datasource=DT;
Datalist1.databind ();
}
}

Protected   Void Tree_selectednodechanged ( Object Sender, eventargs E)
{
Treeview TV = (Treeview) sender;
Response. Write (TV. selectedvalue );
}
Protected   Void Datalist1_itemdatabound ( Object Sender, datalistitemeventargs E)
{
If (E. Item. itemindex ! =   - 1 )
{
Treeview TV = (Treeview) E. Item. findcontrol ( " Tree " );

treenode node = New treenode ();
node. text = " test " ;
node. value = " 1 " ;

TV. nodes. Add (node);
}< BR >}< br>

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