WPF|WPF Treeview 无限分级绑定集合数据

WPF Treeview 无限分级绑定集合数据 2013-04-28 16:42 by swarb, ... 阅读, ... 评论, 收藏, 编辑 【WPF|WPF Treeview 无限分级绑定集合数据】xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mode="clr-namespace:WpfTreeviewDemo"
Title="TreeView无限级树绑定事例" Height="300" Width="300" WindowStartupLocation="CenterScreen" DataContext="{Binding}" ResizeMode="CanMinimize">












using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Threading;
using System.Diagnostics;
using System.Windows.Markup;


namespace WpfTreeviewDemo
{
//定义节点类Node
public class Node
{
//构造函数
public Node()
{
this.Nodes = new List();
}
public int ID { get; set; }//内码
public string Name { get; set; }//名称
public bool IsParent { get; set; }//是否父级
public int OwnerID { get; set; }//上一级内码
public List Nodes { get; set; }//节点集合
}

///
/// MainWindow.xaml 的交互逻辑
///
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
List nodesList = new List()//创建节点的数据集合对象
{
new Node { ID = 1000, Name = "系统", IsParent=true,OwnerID = 0},
new Node { ID = 1100, Name = "软件设置", IsParent=false, OwnerID = 1000 },
new Node { ID = 1200, Name = "数据备份", IsParent=false, OwnerID = 1000 },
new Node { ID = 1300, Name = "数据恢复", IsParent=false, OwnerID = 1000 },
new Node { ID = 2000, Name = "基础资料", IsParent=true,OwnerID = 0},
new Node { ID = 2100, Name = "用户管理", IsParent=false, OwnerID = 2000 },
new Node { ID = 2200, Name = "用户组", IsParent=false, OwnerID = 2000 },
new Node { ID = 2300, Name = "组织机构", IsParent=false, OwnerID = 2000 },
};
List outputList = Bind(nodesList); // 绑定树
this.TreeView.ItemsSource = outputList; //绑定TreeView.Items数据源
}

///
/// 绑定树
///
List Bind(List nodes)
{
List outputList = new List(); //定义节点集合outputList
for (int i = 0; i < nodes.Count; i++)//按节点数量循环
{
if (nodes[i].OwnerID == 0)//判断是否根节点
{
outputList.Add(nodes[i]); //是根节点的,节点集合中加上节点
}
else
{
FindDownward(nodes, nodes[i].OwnerID).Nodes.Add(nodes[i]); //不是根节点的向下查找
}
}
return outputList;
}

///
/// 向下查找
///
Node FindDownward(List nodes, int id)
{
if (nodes == null)
{
return null; //节点集合为空返回null
}
for (int i = 0; i < nodes.Count; i++)//按nodes节点集合数量循环
{
if (nodes[i].ID == id)//判断节点的id是否与父节点相同
{
return nodes[i]; //是父节点返回节点
}
Node node = FindDownward(nodes[i].Nodes, id); //向下查找
if (node != null)//节点不等于返回节点
{
return node;
}
}
return null; //返回空值
}
}
}

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