仅当通过单击外部

如何解决仅当通过单击外部

我正在使用以下xaml将TextBox绑定到ListBox中的所选项目：

<Window x:Class="DataTemplateDemo.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:local="clr-namespace:DataTemplateDemo"
    mc:Ignorable="d"
    Title="MainWindow" Height="300" Width="300">

<Grid>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="120" />
        <ColumnDefinition />
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
        <RowDefinition />
        <RowDefinition Height="25"/>
        <RowDefinition Height="25"/>
        <RowDefinition Height="25"/>
        <RowDefinition Height="25"/>
    </Grid.RowDefinitions>

    <TextBlock Margin="5">Contacts</TextBlock>
    <ListBox x:Name="LBox" Grid.Column="1" Margin="0 0 0 3" ItemsSource="{Binding Contacts}">
        <ListBox.ItemTemplate>
            <DataTemplate>
                <StackPanel>
                    <TextBox FontWeight="Bold" FontSize="12" BorderThickness="0"
                        Background="Transparent" Text="{Binding Name}"/>
                    <TextBox FontSize="10" BorderThickness="0"
                        Background="Transparent" Text="{Binding Telephone}"/>
                    <TextBox FontStyle="Italic" BorderThickness="0" FontSize="10"
                        Background="Transparent" Text="{Binding Email}"/>
                </StackPanel>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>

    <TextBlock Grid.Row="1" Margin="5">Name</TextBlock>
    <TextBox Grid.Row="1" Grid.Column="1" Height="22" Text="{Binding EditableContact.Name}"/>

    <TextBlock Grid.Row="2" Margin="5">Telephone Number</TextBlock>
    <TextBox Grid.Row="2" Grid.Column="1" Height="22" Text="{Binding EditableContact.Telephone}"/>

    <TextBlock Grid.Row="3" Margin="5">Email Address</TextBlock>
    <TextBox Grid.Row="3" Grid.Column="1" Height="22" Text="{Binding EditableContact.Email}"/>

    <TextBlock Grid.Row="4" Margin="5">Selected Name</TextBlock>
    <TextBox Grid.Row="4" Grid.Column="1" Height="22" Text="{Binding ElementName=LBox,Path=SelectedItem.Name,UpdateSourceTrigger=LostFocus}"/>

    <Button Grid.Row="4" Grid.Column="1" HorizontalAlignment="Right"
            Height="22" Width="50" Click="Add_Click">Add</Button>
</Grid>

标记为“选定名称”的

TextBox仅在我在右侧DataTemplate的TextBoxes外部单击鼠标时更新。单击显示列表框所选项目的TextBox项目不会产生反应。

当我在显示的ListBox项之一上的任意位置单击时，如何触发绑定？

解决方法

您可以定义一个ItemContainerStyle容器，当它的任何子元素具有键盘焦点时选择ListBoxItem容器：

<ListBox x:Name="LBox" Grid.Column="1" Margin="0 0 0 3" ItemsSource="{Binding Contacts}">
    <ListBox.ItemContainerStyle>
        <Style TargetType="ListBoxItem">
            <Style.Triggers>
                <Trigger Property="IsKeyboardFocusWithin" Value="True">
                    <Setter Property="IsSelected" Value="True" />
                </Trigger>
            </Style.Triggers>
        </Style>
    </ListBox.ItemContainerStyle>
    <ListBox.ItemTemplate>
        ...
    </ListBox.ItemTemplate>
</ListBox>