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; } }
