实现功能,点击树的父节点,能把下面的子节点选中,然后在把选中的读取出来放到ListBox1中!
现在遇到的问题是:
加上 这条语句:TreeView1.Attributes.Add("oncheck","tree_onchec(document.getElementById('TreeView1'))");可以实现点击树的父节点,能把下面的子节点选中;但是不能把选中的节点读取出来,而且点击确定按钮后原先选中的节点变为不选中了;去掉这条语句;我可以把选中的节点读取出来,但是不能实现点击树的父节点,能把下面的子节点选中;
该怎么修改才能同时可以实现这2个功能。
<%@ Register TagPrefix="iewc" Namespace="Microsoft.Web.UI.WebControls" Assembly="Microsoft.Web.UI.WebControls" %>
<%@ Page language="c#" Codebehind="WebForm6.aspx.cs" AutoEventWireup="false" Inherits="wl.WebForm6" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<script language="C#" runat="server">
private void Page_Load(object sender, System.EventArgs e)
{
TreeView1.Attributes.Add("oncheck","tree_oncheck(this)");
}
</script>
<script language="javascript">
<!--
//初始化选中节点
function initchecknode()
{
var node=TreeView1.getTreeNode("1");
node.setAttribute("Checked","true");
setcheck(node,"true");
FindCheckedFromNode(TreeView1);
}
//oncheck事件
function tree_oncheck(tree)
{
var node=tree.getTreeNode(tree.clickedNodeIndex);
var Pchecked=tree.getTreeNode(tree.clickedNodeIndex).getAttribute("checked");
setcheck(node,Pchecked);
document.all.checked.value="";
document.all.unchecked.value="";
FindCheckedFromNode(TreeView1);
}
//设置子节点选中
function setcheck(node,Pc)
{
var i;
var ChildNode=new Array();
ChildNode=node.getChildren();
if(parseInt(ChildNode.length)==0)
return;
else
{
for(i=0;i<ChildNode.length;i++)
{
var cNode;
cNode=ChildNode[i];
if(parseInt(cNode.getChildren().length)!=0)
setcheck(cNode,Pc);
cNode.setAttribute("Checked",Pc);
}
}
}
//获取所有节点状态
function FindCheckedFromNode(node) {
var i = 0;
var nodes = new Array();
nodes = node.getChildren();
for (i = 0; i < nodes.length; i++) {
var cNode;
cNode=nodes[i];
if (cNode.getAttribute("Checked"))
AddChecked(cNode);
else
AddUnChecked(cNode);
if (parseInt(cNode.getChildren().length) != 0 ) {
FindCheckedFromNode(cNode);
}
}
}
//添加选中节点
function AddChecked(node) {
document.all.checked.value += node.getAttribute("NodeData");
document.all.checked.value += ',';
}
//添加未选中节点
function AddUnChecked(node) {
document.all.unchecked.value += node.getAttribute("NodeData");
document.all.unchecked.value += ',';
}
//-->
</script> <title>WebForm6</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<FONT face="宋体">
<iewc:TreeView id="TreeView1" style="Z-INDEX: 101; LEFT: 48px; POSITION: absolute; TOP: 40px" runat="server"
Width="200px" Height="352px">
<iewc:TreeNode CheckBox="True" Text="Root">
<iewc:TreeNode CheckBox="True" Text="Node1"></iewc:TreeNode>
<iewc:TreeNode CheckBox="True" Text="Node2">
<iewc:TreeNode CheckBox="True" Text="Node4">
<iewc:TreeNode CheckBox="True" Text="Node7"></iewc:TreeNode>
<iewc:TreeNode CheckBox="True" Text="Node8"></iewc:TreeNode>
</iewc:TreeNode>
<iewc:TreeNode CheckBox="True" Text="Node5"></iewc:TreeNode>
</iewc:TreeNode>
<iewc:TreeNode CheckBox="True" Text="Node3">
<iewc:TreeNode CheckBox="True" Text="Node6"></iewc:TreeNode>
</iewc:TreeNode>
</iewc:TreeNode>
</iewc:TreeView>
<asp:ListBox id="ListBox1" style="Z-INDEX: 102; LEFT: 416px; POSITION: absolute; TOP: 136px"
runat="server" Width="152px" Height="168px"></asp:ListBox>
<asp:Button id="Button1" style="Z-INDEX: 103; LEFT: 328px; POSITION: absolute; TOP: 184px" runat="server"
Width="56px" Height="88px" Text=">>"></asp:Button></FONT>
</form>
</body>
</HTML>
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.Odbc;
using System.Data.OracleClient;
using Microsoft.Web.UI.WebControls;
namespace wl
{
/// <summary>
/// Summary description for WebForm6.
/// </summary>
public class WebForm6 : System.Web.UI.Page
{
protected Microsoft.Web.UI.WebControls.TreeView TreeView1;
protected System.Web.UI.WebControls.ListBox ListBox1;
protected System.Web.UI.WebControls.Button Button1;
protected DataSet ds;
private void Page_Load(object sender, System.EventArgs e)
{
if(!(Page.IsPostBack))
{
TreeView1.Attributes.Add("oncheck","tree_onchec(document.getElementById('TreeView1'))");
}
}
private void GetCheckedNodeText(Microsoft.Web.UI.WebControls.TreeView TreeView1, out ArrayList nodeTexts)
{
ArrayList nodes = new ArrayList();
nodeTexts = new ArrayList();
nodes.Add(TreeView1.Nodes[0]);
for(int i = 0; i < nodes.Count; i++)
{
Microsoft.Web.UI.WebControls.TreeNode treeNode = (Microsoft.Web.UI.WebControls.TreeNode)nodes[i];
if(treeNode.Checked == true)
nodeTexts.Add(treeNode.Text);
if(treeNode.Nodes.Count > 0)
{
foreach(Microsoft.Web.UI.WebControls.TreeNode child in treeNode.Nodes)
{
nodes.Add(child);
}
}
nodes.Remove(treeNode);
i--;
}
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Load += new System.EventHandler(this.Page_Load); }
#endregion private void Button1_Click(object sender, System.EventArgs e)
{
ArrayList texts = null;
GetCheckedNodeText(TreeView1, out texts);
for(int i = 0; i < texts.Count; i++)
{
ListBox1.Items.Add((string)texts[i]);
}
} }
}
现在遇到的问题是:
加上 这条语句:TreeView1.Attributes.Add("oncheck","tree_onchec(document.getElementById('TreeView1'))");可以实现点击树的父节点,能把下面的子节点选中;但是不能把选中的节点读取出来,而且点击确定按钮后原先选中的节点变为不选中了;去掉这条语句;我可以把选中的节点读取出来,但是不能实现点击树的父节点,能把下面的子节点选中;
该怎么修改才能同时可以实现这2个功能。
<%@ Register TagPrefix="iewc" Namespace="Microsoft.Web.UI.WebControls" Assembly="Microsoft.Web.UI.WebControls" %>
<%@ Page language="c#" Codebehind="WebForm6.aspx.cs" AutoEventWireup="false" Inherits="wl.WebForm6" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<script language="C#" runat="server">
private void Page_Load(object sender, System.EventArgs e)
{
TreeView1.Attributes.Add("oncheck","tree_oncheck(this)");
}
</script>
<script language="javascript">
<!--
//初始化选中节点
function initchecknode()
{
var node=TreeView1.getTreeNode("1");
node.setAttribute("Checked","true");
setcheck(node,"true");
FindCheckedFromNode(TreeView1);
}
//oncheck事件
function tree_oncheck(tree)
{
var node=tree.getTreeNode(tree.clickedNodeIndex);
var Pchecked=tree.getTreeNode(tree.clickedNodeIndex).getAttribute("checked");
setcheck(node,Pchecked);
document.all.checked.value="";
document.all.unchecked.value="";
FindCheckedFromNode(TreeView1);
}
//设置子节点选中
function setcheck(node,Pc)
{
var i;
var ChildNode=new Array();
ChildNode=node.getChildren();
if(parseInt(ChildNode.length)==0)
return;
else
{
for(i=0;i<ChildNode.length;i++)
{
var cNode;
cNode=ChildNode[i];
if(parseInt(cNode.getChildren().length)!=0)
setcheck(cNode,Pc);
cNode.setAttribute("Checked",Pc);
}
}
}
//获取所有节点状态
function FindCheckedFromNode(node) {
var i = 0;
var nodes = new Array();
nodes = node.getChildren();
for (i = 0; i < nodes.length; i++) {
var cNode;
cNode=nodes[i];
if (cNode.getAttribute("Checked"))
AddChecked(cNode);
else
AddUnChecked(cNode);
if (parseInt(cNode.getChildren().length) != 0 ) {
FindCheckedFromNode(cNode);
}
}
}
//添加选中节点
function AddChecked(node) {
document.all.checked.value += node.getAttribute("NodeData");
document.all.checked.value += ',';
}
//添加未选中节点
function AddUnChecked(node) {
document.all.unchecked.value += node.getAttribute("NodeData");
document.all.unchecked.value += ',';
}
//-->
</script> <title>WebForm6</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<FONT face="宋体">
<iewc:TreeView id="TreeView1" style="Z-INDEX: 101; LEFT: 48px; POSITION: absolute; TOP: 40px" runat="server"
Width="200px" Height="352px">
<iewc:TreeNode CheckBox="True" Text="Root">
<iewc:TreeNode CheckBox="True" Text="Node1"></iewc:TreeNode>
<iewc:TreeNode CheckBox="True" Text="Node2">
<iewc:TreeNode CheckBox="True" Text="Node4">
<iewc:TreeNode CheckBox="True" Text="Node7"></iewc:TreeNode>
<iewc:TreeNode CheckBox="True" Text="Node8"></iewc:TreeNode>
</iewc:TreeNode>
<iewc:TreeNode CheckBox="True" Text="Node5"></iewc:TreeNode>
</iewc:TreeNode>
<iewc:TreeNode CheckBox="True" Text="Node3">
<iewc:TreeNode CheckBox="True" Text="Node6"></iewc:TreeNode>
</iewc:TreeNode>
</iewc:TreeNode>
</iewc:TreeView>
<asp:ListBox id="ListBox1" style="Z-INDEX: 102; LEFT: 416px; POSITION: absolute; TOP: 136px"
runat="server" Width="152px" Height="168px"></asp:ListBox>
<asp:Button id="Button1" style="Z-INDEX: 103; LEFT: 328px; POSITION: absolute; TOP: 184px" runat="server"
Width="56px" Height="88px" Text=">>"></asp:Button></FONT>
</form>
</body>
</HTML>
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.Odbc;
using System.Data.OracleClient;
using Microsoft.Web.UI.WebControls;
namespace wl
{
/// <summary>
/// Summary description for WebForm6.
/// </summary>
public class WebForm6 : System.Web.UI.Page
{
protected Microsoft.Web.UI.WebControls.TreeView TreeView1;
protected System.Web.UI.WebControls.ListBox ListBox1;
protected System.Web.UI.WebControls.Button Button1;
protected DataSet ds;
private void Page_Load(object sender, System.EventArgs e)
{
if(!(Page.IsPostBack))
{
TreeView1.Attributes.Add("oncheck","tree_onchec(document.getElementById('TreeView1'))");
}
}
private void GetCheckedNodeText(Microsoft.Web.UI.WebControls.TreeView TreeView1, out ArrayList nodeTexts)
{
ArrayList nodes = new ArrayList();
nodeTexts = new ArrayList();
nodes.Add(TreeView1.Nodes[0]);
for(int i = 0; i < nodes.Count; i++)
{
Microsoft.Web.UI.WebControls.TreeNode treeNode = (Microsoft.Web.UI.WebControls.TreeNode)nodes[i];
if(treeNode.Checked == true)
nodeTexts.Add(treeNode.Text);
if(treeNode.Nodes.Count > 0)
{
foreach(Microsoft.Web.UI.WebControls.TreeNode child in treeNode.Nodes)
{
nodes.Add(child);
}
}
nodes.Remove(treeNode);
i--;
}
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Load += new System.EventHandler(this.Page_Load); }
#endregion private void Button1_Click(object sender, System.EventArgs e)
{
ArrayList texts = null;
GetCheckedNodeText(TreeView1, out texts);
for(int i = 0; i < texts.Count; i++)
{
ListBox1.Items.Add((string)texts[i]);
}
} }
}
自己up~~~