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69
Wpf.Ui.Extend/UserControls/MultiCheckTreeView.xaml
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69
Wpf.Ui.Extend/UserControls/MultiCheckTreeView.xaml
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<UserControl
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x:Class="Wpf.Ui.Extend.UserControls.MultiCheckTreeView"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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xmlns:models="clr-namespace:Wpf.Ui.Extend.Models"
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d:DesignHeight="300"
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d:DesignWidth="300"
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mc:Ignorable="d">
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<Grid>
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<DockPanel>
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<Border>
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<TreeView x:Name="MultiCheckTree" d:ItemsSource="{d:SampleData}">
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<TreeView.ContextMenu>
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<ContextMenu />
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</TreeView.ContextMenu>
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<TreeView.ItemContainerStyle>
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<Style TargetType="{x:Type TreeViewItem}">
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<Setter Property="IsExpanded" Value="{Binding IsExpanded, Mode=TwoWay}" />
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<EventSetter Event="UIElement.PreviewMouseRightButtonDown" Handler="TreeViewItem_PreviewMouseRightButtonDown" />
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</Style>
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</TreeView.ItemContainerStyle>
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<TreeView.ItemTemplate>
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<HierarchicalDataTemplate DataType="{x:Type models:TreeModel}" ItemsSource="{Binding Children}">
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<StackPanel
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x:Name="staTree"
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Margin="-2,0,0,0"
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Orientation="Horizontal">
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<CheckBox
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Click="treeNode_Click"
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FontFamily="微软雅黑"
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FontSize="14"
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IsChecked="{Binding IsChecked, Mode=TwoWay}"
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Tag="{Binding Children}"
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ToolTip="{Binding ToolTip}">
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<!--<CheckBox.ContextMenu>
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<ContextMenu>
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<MenuItem
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x:Name="menuSelectAllChild"
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Click="menuSelectAllChild_Click"
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Header="全部选中子项">
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<MenuItem.Icon>
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<Image Source="/FamilyTools;component/Images/16_16/Checked_16px.png" />
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</MenuItem.Icon>
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</MenuItem>
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</ContextMenu>
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</CheckBox.ContextMenu>-->
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<StackPanel Orientation="Horizontal">
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<Image VerticalAlignment="Center" Source="{Binding Icon}" />
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<TextBlock
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VerticalAlignment="Center"
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Foreground="Black"
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Text="{Binding Name}" />
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</StackPanel>
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</CheckBox>
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</StackPanel>
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<HierarchicalDataTemplate.Triggers>
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<DataTrigger Binding="{Binding IsChecked}" Value="true">
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<Setter TargetName="staTree" Property="Background" Value="White" />
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</DataTrigger>
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</HierarchicalDataTemplate.Triggers>
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</HierarchicalDataTemplate>
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</TreeView.ItemTemplate>
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</TreeView>
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</Border>
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</DockPanel>
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</Grid>
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</UserControl>
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242
Wpf.Ui.Extend/UserControls/MultiCheckTreeView.xaml.cs
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242
Wpf.Ui.Extend/UserControls/MultiCheckTreeView.xaml.cs
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using System.Collections.Generic;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Input;
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using System.Windows.Media;
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using Wpf.Ui.Extend.Models;
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namespace Wpf.Ui.Extend.UserControls
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{
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public partial class MultiCheckTreeView : UserControl
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{
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/// <summary>
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/// 构造
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/// </summary>
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public MultiCheckTreeView()
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{
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InitializeComponent();
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}
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/// <summary>
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/// 控件数据
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/// </summary>
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private IList<TreeModel> itemsSourceData;
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/// <summary>
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/// 控件数据
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/// </summary>
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public IList<TreeModel> ItemsSourceData
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{
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get => itemsSourceData;
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set
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{
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itemsSourceData = value;
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MultiCheckTree.ItemsSource = itemsSourceData;
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}
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}
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/// <summary>
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/// 获取选中所有项（父节点和子节点）
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/// </summary>
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/// <returns></returns>
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public IList<TreeModel> CheckedItemsIgnoreRelation()
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{
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return GetCheckedItemsIgnoreRelation(itemsSourceData);
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}
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/// <summary>
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/// 设置对应Id的项为选中状态
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/// </summary>
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/// <param name="id"></param>
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/// <returns></returns>
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public int SetCheckedById(string id, IList<TreeModel> treeList)
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{
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foreach (var tree in treeList)
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{
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if (tree.Id.Equals(id))
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{
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tree.IsChecked = true;
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return 1;
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}
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if (SetCheckedById(id, tree.Children) == 1)
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{
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return 1;
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}
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}
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return 0;
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}
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/// <summary>
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/// 设置对应Id的项为选中状态
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/// </summary>
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/// <param name="id"></param>
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/// <returns></returns>
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public int SetCheckedById(string id)
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{
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foreach (var tree in ItemsSourceData)
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{
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if (tree.Id.Equals(id))
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{
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tree.IsChecked = true;
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return 1;
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}
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if (SetCheckedById(id, tree.Children) == 1)
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{
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return 1;
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}
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}
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return 0;
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}
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/// <summary>
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/// 私有方法，忽略层次关系的情况下，获取选中项
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/// </summary>
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/// <param name="list"></param>
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/// <returns></returns>
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private IList<TreeModel> GetCheckedItemsIgnoreRelation(IList<TreeModel> list)
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{
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IList<TreeModel> treeList = [];
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foreach (var tree in list)
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{
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if (tree.IsChecked == true)
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{
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treeList.Add(tree);
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}
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//第二次调用方法时由于没有子节点即为空，所以不进行执行下面语句，跳出下面的foreach语句
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foreach (var child in GetCheckedItemsIgnoreRelation(tree.Children))
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{
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treeList.Add(child);
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}
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}
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return treeList;
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}
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private static DependencyObject VisualUpwardSearch<T>(DependencyObject source)
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{
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while (source != null && source.GetType() != typeof(T))
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source = VisualTreeHelper.GetParent(source);
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return source;
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}
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/// <summary>
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/// 全部展开菜单事件
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void menuExpandAll_Click(object sender, RoutedEventArgs e)
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{
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if (MultiCheckTree.ItemsSource != null)
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{
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foreach (TreeModel tree in MultiCheckTree.ItemsSource)
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{
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tree.IsExpanded = true;
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tree.SetChildrenExpanded(true);
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}
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}
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}
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/// <summary>
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/// 全部选中事件
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void menuSelectAll_Click(object sender, RoutedEventArgs e)
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{
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if (MultiCheckTree.ItemsSource != null)
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{
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foreach (TreeModel tree in MultiCheckTree.ItemsSource)
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{
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tree.IsChecked = true;
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tree.SetChildrenChecked(true);
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}
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}
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}
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/// <summary>
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/// 选中所有子项菜单事件
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void menuSelectAllChild_Click(object sender, RoutedEventArgs e)
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{
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if (MultiCheckTree.SelectedItem != null)
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{
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var tree = (TreeModel)MultiCheckTree.SelectedItem;
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tree.IsChecked = true;
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tree.SetChildrenChecked(true);
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}
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}
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/// <summary>
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/// 全部折叠菜单事件
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void menuUnExpandAll_Click(object sender, RoutedEventArgs e)
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{
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if (MultiCheckTree.ItemsSource != null)
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{
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foreach (TreeModel tree in MultiCheckTree.ItemsSource)
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{
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tree.IsExpanded = false;
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tree.SetChildrenExpanded(false);
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}
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}
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}
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/// <summary>
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/// 全部取消选中
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void menuUnSelectAll_Click(object sender, RoutedEventArgs e)
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{
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if (MultiCheckTree.ItemsSource != null)
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{
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foreach (TreeModel tree in MultiCheckTree.ItemsSource)
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{
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tree.IsChecked = false;
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tree.SetChildrenChecked(false);
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}
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}
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}
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private void treeNode_Click(object sender, RoutedEventArgs e)
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{
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if (VisualUpwardSearch<TreeViewItem>(e.OriginalSource as DependencyObject) is TreeViewItem item)
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{
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item.Focus();
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if (MultiCheckTree.SelectedItem != null)
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{
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var tree = (TreeModel)MultiCheckTree.SelectedItem;
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tree.SetChildrenChecked();
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tree.SetParentChecked();
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}
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e.Handled = true;
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}
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}
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/// <summary>
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/// 鼠标右键事件
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void TreeViewItem_PreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
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{
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if (VisualUpwardSearch<TreeViewItem>(e.OriginalSource as DependencyObject) is TreeViewItem item)
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{
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item.Focus();
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e.Handled = true;
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}
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}
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}
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}
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82
Wpf.Ui.Extend/UserControls/MultiSelectorHelper.cs
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82
Wpf.Ui.Extend/UserControls/MultiSelectorHelper.cs
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using System;
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using System.Collections;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Controls.Primitives;
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namespace Wpf.Ui.Extend.UserControls
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{
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/// <summary>
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/// 多选控件绑定选中项
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/// </summary>
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/// <example>
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/// <c><DataGrid</c>
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/// <c>local:MultiSelectorHelper.BindableSelectedItems="{Binding SelectItems, Mode=OneWayToSource}"</c>
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/// <c>local:MultiSelectorHelper.MonitorSelectionChanged="True" /></c>
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/// </example>
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public class MultiSelectorHelper : DependencyObject
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{
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public static readonly DependencyProperty BindableSelectedItemsProperty = DependencyProperty.Register(
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"BindableSelectedItems",
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typeof(IList),
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typeof(MultiSelectorHelper),
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new PropertyMetadata(default(IList))
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);
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public static IList GetBindableSelectedItems(DependencyObject obj)
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{
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return (IList)obj.GetValue(BindableSelectedItemsProperty);
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}
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public static void SetBindableSelectedItems(DependencyObject obj, IList value)
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{
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obj.SetValue(BindableSelectedItemsProperty, value);
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}
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public static readonly DependencyProperty MonitorSelectionChangedProperty = DependencyProperty.RegisterAttached(
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"SetMonitorSelectionChanged",
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typeof(bool),
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typeof(MultiSelectorHelper),
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new PropertyMetadata(false, MonitorSelectionChangedPropertyChangedCallBack)
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);
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private static void MonitorSelectionChangedPropertyChangedCallBack(
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DependencyObject d,
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DependencyPropertyChangedEventArgs e
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)
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{
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if (d is not MultiSelector selector)
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{
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throw new NotImplementedException();
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}
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if ((bool)e.NewValue)
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{
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selector.SelectionChanged += Selector_SelectionChanged;
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}
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else
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{
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selector.SelectionChanged -= Selector_SelectionChanged;
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}
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}
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private static void Selector_SelectionChanged(object sender, SelectionChangedEventArgs e)
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{
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if (sender is MultiSelector selector)
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{
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SetBindableSelectedItems(selector, selector.SelectedItems);
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selector.GetBindingExpression(BindableSelectedItemsProperty).UpdateSource();
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}
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}
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public static void SetMonitorSelectionChanged(DependencyObject element, bool value)
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{
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element.SetValue(MonitorSelectionChangedProperty, value);
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}
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public static bool GetMonitorSelectionChanged(DependencyObject element)
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{
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return (bool)element.GetValue(MonitorSelectionChangedProperty);
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}
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}
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}
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