WPF Treeview 无限分级绑定集合数据

<Window x:Class="WpfTreeviewDemo.MainWindow"

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">

<Grid>

<Grid.Resources>

<HierarchicalDataTemplate DataType="{x:Type mode:Node}" ItemsSource="{Binding Nodes}">

<StackPanel Orientation="Horizontal" Margin="0,2,0,2"> <TextBlock Text="{Binding Name}" ToolTip="{Binding Name}" Tag="{Binding}"/>

</StackPanel>

</HierarchicalDataTemplate>

</Grid.Resources>

<TreeView Name="TreeView"/>

</Grid>

</Window>

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<Node>();

}

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<Node> Nodes { get; set; }//节点集合

}

/// <summary>

/// MainWindow.xaml 的交互逻辑

/// </summary>

public partial class MainWindow : Window

{

public MainWindow()

{

InitializeComponent();

List<Node> nodesList = new List<Node>()//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<Node> outputList = Bind(nodesList);// 绑定树

this.TreeView.ItemsSource = outputList;//绑定TreeView.Items数据源

}

/// <summary>

/// 绑定树

/// </summary>

List<Node> Bind(List<Node> nodes)

{

List<Node> outputList = new List<Node>();//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;

}

/// <summary>

/// 向下查找

/// </summary>

Node FindDownward(List<Node> 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

}

}

}