WPF实现CheckBoxListView

在Win7的资源管理器中，如果我们选中【文件夹选项】->【查看】->【文件和文件夹】->【使用复选框以选择项】。则可通过列表项上的复选框实现多选，而不再需要按【Ctrl】或【Shift】键。WPF中没有对应的控件，但是利用WPF我们可以比较容易实现此功能。
讨论
    首先，CheckBox的选中状态应该和ListViewItem的选中状态保持一致，故需要将CheckBox的IsChecked属性和ListViewItem的IsSelected属性绑定到一起。
    其次，CheckBox的可见性应该在ListViewItem被选中或鼠标移动到其上面时可见，故需要把CheckBox的Visibility属性复合绑定到ListViewItem的IsMouseOver属性和IsSelected属性上。

效果
    实现后的效果如图所示：

例子代码片段

    Window1.xaml文件：

<Window x:Class="TestCheckListView.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:l="clr-namespace:TestCheckListView"
    Title="Window1" Height="300" Width="300">
    <Window.Resources>
        <l:CheckBoxVisibilityConverter x:Key="CheckBoxVisibilityConverter"/>
        <GridView x:Key="gridview">
            <GridViewColumn Header="Name">
                <GridViewColumn.CellTemplate>
                    <DataTemplate>
                        <StackPanel Orientation="Horizontal">
                            <CheckBox IsChecked="{Binding Path=IsSelected, RelativeSource={RelativeSource AncestorType={x:Type ListViewItem}}}">
                                <CheckBox.Visibility>
                                    <MultiBinding Converter="{StaticResource CheckBoxVisibilityConverter}">
                                        <Binding Path="IsMouseOver" RelativeSource="{RelativeSource AncestorType={x:Type ListViewItem}}"/>
                                        <Binding Path="IsSelected" RelativeSource="{RelativeSource AncestorType={x:Type ListViewItem}}"/>
                                    </MultiBinding>
                                </CheckBox.Visibility>
                            </CheckBox>
                            <TextBlock Text="{Binding Name}"/>
                        </StackPanel>
                    </DataTemplate>
                </GridViewColumn.CellTemplate>
            </GridViewColumn>
            <GridViewColumn Header="Age" DisplayMemberBinding="{Binding Age}"/>
            <GridViewColumn Header="Sex" DisplayMemberBinding="{Binding Sex}"/>
        </GridView>
    </Window.Resources>
   
    <Grid Margin="10">
        <ListView Name="lv" View="{StaticResource gridview}"/>
    </Grid>
</Window>

 

    Window1.xaml.cs文件：

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.Collections.ObjectModel;

namespace TestCheckListView
{
    /// <summary>
    /// Window1.xaml 的交互逻辑
    /// </summary>
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();

            this.lv.ItemsSource = this.persons;

            this.persons.Add(new Person("John", 12, true));
            this.persons.Add(new Person("Rose", 21, false));
            this.persons.Add(new Person("Jack", 12, true));
            this.persons.Add(new Person("Jenny", 21, false));
            this.persons.Add(new Person("Tom", 12, true));
            this.persons.Add(new Person("Alma", 21, false));
        }

        private ObservableCollection<Person> persons = new ObservableCollection<Person>();
    }

    public class Person
    {
        public Person(String name, Int32 age, Boolean bMale)
        {
            this.Name = name;
            this.Age = age;
            this.Sex = bMale ? "M" : "F";
        }

        public String Name { get; set; }
        public Int32 Age { get; set; }
        public String Sex { get; set; }
    }

    public class CheckBoxVisibilityConverter : IMultiValueConverter
    {
        public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            try
            {
                Boolean isMouseOver = (Boolean)(values[0]);
                Boolean isSelected = (Boolean)(values[1]);
                if (isSelected)
                    return Visibility.Visible;
                else if (isMouseOver)
                    return Visibility.Visible;
                else
                    return Visibility.Hidden;
            }
            catch { return Visibility.Hidden; }
        }

        public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
        {
            return null;
        }
    }
}