在两个列表框之间同步(多重)选择

本文关键字：同步 之间 多重 选择 两个 列表 | 更新日期: 2023-09-27 18:29:15

我有两个列表框，它们绑定到同一数据源（文件名数组）。一个列表框将文件视为图标，而另一个则将其视为列表。现在我希望他们有相同的选择。因此，当我在一个文件中多重选择两个或多个文件时，同样的文件也应该在另一个中选择。有没有办法做到这一点，最好是在XAML中？我尝试了IsSynchronizedWithCurrentItem和绑定到SelectedItem，但这些仅适用于单选项。

<Listbox Name="listView" ItemsSource="{Binding Files}">
    <Listbox.ItemTemplate>
        // View as list
    </Listbox.ItemTemplate>
</ListBox>
<Listbox Name="IconView" ItemsSource="{Binding Files}">
    <Listbox.ItemTemplate>
        // View as Icon grid
    </Listbox.ItemTemplate>
</ListBox>

在两个列表框之间同步(多重)选择

试试这个代码

XAML

 <StackPanel>
        <ListBox Height="100" SelectionMode="Multiple" SelectedItem="{Binding SelectedListItem}" x:Name="listview"  ItemsSource="{Binding ListBoxItems}">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding Item}"/>
                </DataTemplate>
            </ListBox.ItemTemplate>
            <ListBox.ItemContainerStyle>
                <Style TargetType="{x:Type ListBoxItem}">
                    <Setter Property="IsSelected" Value="{Binding Mode=TwoWay, Path=IsSelected}"/>
                </Style>
            </ListBox.ItemContainerStyle>
        </ListBox>
        <ListBox Height="100" x:Name="itemview" SelectionMode="Multiple"  SelectedItem="{Binding SelectedListItem}" ItemsSource="{Binding ListBoxItems}">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <TextBlock Text="{Binding Item}"/>
                </DataTemplate>
            </ListBox.ItemTemplate>
            <ListBox.ItemContainerStyle>
                <Style TargetType="{x:Type ListBoxItem}">
                    <Setter Property="IsSelected" Value="{Binding Mode=TwoWay, Path=IsSelected}"/>
                </Style>
            </ListBox.ItemContainerStyle>
        </ListBox>
    </StackPanel>

ViewModel

    private ObservableCollection<MultipleSelection> listBoxItems = new ObservableCollection<MultipleSelection>();
            public ObservableCollection<MultipleSelection> ListBoxItems
            {
                get
                {
                    return listBoxItems;
                }
                set
                {
                    listBoxItems = value;
                    this.RaisePropertyChanged("ListBoxItems");
                }
            }
            private MultipleSelection selectedListItem;
            public MultipleSelection SelectedListItem
            {
                get
                {
                    return selectedListItem;
                }
                set
                {
              selectedListItem = value;
            var selectedItems = ListBoxItems.Where(x => x.IsSelected);
            this.RaisePropertyChanged("SelectedListItem");
                }
            }
public class MultipleSelection : INotifyPropertyChanged
        {
            private string item;
            public string Item
            {
                get { return item; }
                set
                {
                    item = value;
                    this.RaisePropertyChanged("Item");
                }
            }
            private bool isSelected;
            public bool IsSelected
            {
                get { return isSelected; }
                set
                {
                    isSelected = value;
                    this.RaisePropertyChanged("IsSelected");
                }
            }
        }
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