wpf Tree

code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
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;

namespace CodeAI
{
    public class Node
    {
        public Node()
        {
            this.Nodes = new List<Node>();
            this.ParentID = -1;
        }
        public int ID { get; set; }
        public string Name { get; set; }
        public int ParentID { get; set; }
        public List<Node> Nodes { get; set; }
    }  

    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();

            new TemplateControl().load();

            List<Node> nodes = new List<Node>()   
            {   
                new Node { ID = 1, Name = "中国" },   
                new Node { ID = 2, Name = "北京市", ParentID = 1 },   
                new Node { ID = 3, Name = "吉林省", ParentID = 1 },   
                new Node { ID = 4, Name = "上海市", ParentID = 1 },   
                new Node { ID = 5, Name = "海淀区", ParentID = 2 },   
                new Node { ID = 6, Name = "朝阳区", ParentID = 2 },   
                new Node { ID = 7, Name = "大兴区", ParentID = 2 },   
                new Node { ID = 8, Name = "白山市", ParentID = 3 },   
                new Node { ID = 9, Name = "长春市", ParentID = 3 },   
                new Node { ID = 10, Name = "抚松县", ParentID = 8 },   
                new Node { ID = 11, Name = "靖宇县", ParentID = 8 }   
            };
            List<Node> outputList = Bind(nodes);

            this.TreeView.ItemsSource = outputList;   
        }
        List<Node> Bind(List<Node> nodes)
        {
            List<Node> outputList = new List<Node>();
            for (int i = 0; i < nodes.Count; i++)
            {
                if (nodes[i].ParentID == -1) outputList.Add(nodes[i]);
                else FindDownward(nodes, nodes[i].ParentID).Nodes.Add(nodes[i]);
            }
            return outputList;
        }

        Node FindDownward(List<Node> nodes, int id)
        {
            if (nodes == null) return null;
            for (int i = 0; i < nodes.Count; i++)
            {
                if (nodes[i].ID == id)
                    return nodes[i];
                Node node = FindDownward(nodes[i].Nodes, id);
                if (node != null) return node;
            }
            return null;
        }

        private void TextBlock_MouseDown_1(object sender, MouseButtonEventArgs e)
        {

        }   
    }
}

xaml

<Window x:Class="CodeAI.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:src="clr-namespace:CodeAI"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Grid.Resources>
            <HierarchicalDataTemplate DataType="{x:Type src:Node}" ItemsSource="{Binding Nodes}">
                <StackPanel Orientation="Horizontal" Margin="0,2,0,2">
                    <!--<Image Source="pack://application:,,,/WpfTest;Component/Resources/KnowDot.png" Width="16" Height="16" />-->
                    <!--<Image Source="Resources/KnowDot.png" Width="16" Height="16" />-->
                    <!--<Image Source="/WpfTest;Component/Resources/KnowDot.png" Width="16" Height="16" />-->
                    <TextBlock Text="{Binding Name}" ToolTip="{Binding Name}" Tag="{Binding}" MouseDown="TextBlock_MouseDown_1"/>
                </StackPanel>
            </HierarchicalDataTemplate>
        </Grid.Resources>
        <TreeView Name="TreeView"/>
        
    </Grid>
</Window>

树形版

code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CodeAI
{
    public class TemplateNode
    {
        public TemplateNode()
        {
            this.childs = new List<TemplateNode>();
        }
        public string Name { get; set; }

        private TemplateNode parent;
        public TemplateNode Parent
        {
            set
            {
                value.childs.Add(this);
                parent = value;
            }
            get
            {
                return parent;
            }
        }
        public List<TemplateNode> childs { get; set; }

        public void addChild(TemplateNode node)
        {
            node.parent = this;
            childs.Add(node);
        }
        public string filePath;

        public bool PictureVisible
        {
            get{
                if(parent != null && parent.parent == null){
                    return true;
                }
                return false;
            }
        }
    }
}

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
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;

namespace CodeAI
{
    /// <summary>
    /// TemplateControl.xaml 的交互逻辑
    /// </summary>
    public partial class TemplateControl : UserControl
    {
        public TemplateControl()
        {
            InitializeComponent();
        }

        public void load()
        {
            TemplateNode root = new TemplateNode();
            root.Name = "root";
            if(Directory.Exists("template"))
            {
                loadSub("template", root);
                string[] subFolder = Directory.GetDirectories("template");
            }
        }

        public void loadSub(string folderPath, TemplateNode parent)
        {
            string[] subFolders = Directory.GetDirectories(folderPath);

            foreach (string filePath in Directory.GetFiles(folderPath))
            {
                TemplateNode node = new TemplateNode();
                node.filePath = filePath;
                node.Name = System.IO.Path.GetFileName(filePath);
                node.Parent = parent;
            }

            foreach (string subFolder in subFolders)
            {
                TemplateNode subParent = new TemplateNode();
                subParent.filePath = subFolder;
                subParent.Name = System.IO.Path.GetDirectoryName(subFolder);
                subParent.Parent = parent;

                loadSub(folderPath , subParent);
            }
        }
    }
}

xaml

<UserControl x:Class="CodeAI.TemplateControl"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             mc:Ignorable="d" 
             xmlns:src="clr-namespace:CodeAI"
             d:DesignHeight="300" d:DesignWidth="300">
    <UserControl.Resources>
        <HierarchicalDataTemplate DataType="{x:Type src:TemplateNode}" ItemsSource="{Binding childs}">
            <StackPanel Orientation="Horizontal" Margin="0,2,0,2">
                <Image Source="image/folder.png" Visibility="{Binding PictureVisible}" Width="16" Height="16" />
                <TextBlock Text="{Binding Name}" ToolTip="{Binding Name}" Tag="{Binding}" />
            </StackPanel>
        </HierarchicalDataTemplate>
    </UserControl.Resources>

    <Grid>
        <TreeView Name="TreeView"/>
    </Grid>
</UserControl>

节点事件

使用模板HierarchicalDataTemplate

<HierarchicalDataTemplate x:Key="BookMarkTemplate" >
            <StackPanel Orientation="Horizontal">
                <TextBlock Text="{Binding Child.MarkName,Mode=TwoWay}"></TextBlock>
            </StackPanel>
        </HierarchicalDataTemplate>
        <HierarchicalDataTemplate x:Key="ChapterTemplate" ItemTemplate="{StaticResource BookMarkTemplate}" ItemsSource="{Binding InlineList,Mode=TwoWay}" >
            <StackPanel Orientation="Horizontal">
                <TextBlock Text="{Binding Name}"></TextBlock>
            </StackPanel>
        </HierarchicalDataTemplate>

从父节点删除选中项

  <TreeView  x:Name="treeview"  TreeViewItem.Selected="treeView1_Selected" ItemTemplate="{StaticResource ChapterTemplate}">

private void treeView1_Selected(object sender, RoutedEventArgs e)
        {
            if ((e.OriginalSource as TreeViewItem).Header.GetType()==typeof(InlineUIContainer))
            {
                mark = ((e.OriginalSource as TreeViewItem).Header as InlineUIContainer);
                BookMarkRun run = mark.Child as BookMarkRun;
                txtSelectionContent.Text = run.MarkName;
                DependencyObject parent = VisualTreeHelper.GetParent((e.OriginalSource as TreeViewItem));
                while (!(parent is TreeViewItem))
                    parent = VisualTreeHelper.GetParent(parent);
                TreeViewItem item = (TreeViewItem)parent;
                volumeModel = (item.Header as VolumeModel);
                btnAdd.Content = "修改";
                btnDel.IsEnabled = true;
                btnAdd.IsEnabled = true;
            }
     }