如果ItemTemplate中的TextBox获得焦点，则选择ListBoxItem [英] Select ListBoxItem if TextBox in ItemTemplate gets focus

问题描述

我在ListBox类中添加了DataTemplate以将我的收藏绑定到:

I have added a DataTemplate to a ListBox class to bind my collection to:

<ListBox x:Name="lstEmails" Height="259" Margin="12,0,12,41" Width="276"
         SelectionChanged="lstEmails_SelectionChanged">
    <ListBox.ItemTemplate> 
        <DataTemplate> 
            <StackPanel Orientation="Horizontal"> 
                <Label Visibility="Hidden" Content="{Binding ID}"></Label> 
                <TextBox Width="200"  Text="{Binding EmailAddress}"></TextBox> 
            </StackPanel> 
        </DataTemplate> 
    </ListBox.ItemTemplate> 
</ListBox> 

这正是我想要的.尽管当我单击TextBox时，ListBox不会自动将关联的ListItem设置为Selected.我可以在代码中做到这一点，但我更希望将其用作组件(届时就不足为奇了).

This does exactly what I want it to do. Although when I click on the TextBox, the ListBox does not automatically set the associated ListItem as Selected. I could do this in code, but I would prefer to use this as a component (no surprises there then).

关于如何实现这一目标的任何想法?

Any ideas on how to achieve this?

这似乎不起作用，它不会让我单击任何东西.我错过了什么吗?这是我的新XAML.

That doesn't seem to work, it won't let me click on anything. Have I missed something. Here is my new XAML.

<UserControl.Resources> 
    <!--<TextBox x:Key="TB" x:Name="TextBoxInsideListBoxItemTemplate"> 
        <TextBox.Style>--> 
            <Style TargetType="{x:Type TextBox}"> 
                <Setter Property="IsHitTestVisible" Value="False" /> 
                <Style.Triggers> 
                    <DataTrigger Binding="{Binding IsSelected, RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type ListBoxItem}, AncestorLevel=1}}" 
                                                     Value="True"> 
                        <Setter Property="IsHitTestVisible" Value="True" /> 
                    </DataTrigger> 
                </Style.Triggers> 
            </Style> 
        <!--</TextBox.Style> 
    </TextBox>--> 
</UserControl.Resources> 
<Grid> 
    <ListBox x:Name="lstEmails" Height="259" Margin="12,0,12,41" Width="276" SelectionChanged="lstEmails_SelectionChanged">
        <ListBox.ItemTemplate> 
            <DataTemplate> 
                <StackPanel Orientation="Horizontal"> 
                    <!--<Label Visibility="Hidden" Content="{Binding ID}"></Label>--> 
                    <TextBox Width="220" Text="{Binding EmailAddress}" > 
                    </TextBox> 
                    <!--<TextBox Width="220" Text="{Binding EmailAddress}" GotFocus="TextBox_GotFocus"></TextBox>-->
                </StackPanel> 
            </DataTemplate> 
        </ListBox.ItemTemplate> 
    </ListBox> 
    <Button Width="20" Margin="12,0,0,12" Name="btnAdd" VerticalAlignment="Bottom" Click="btnAdd_Click" Height="23" HorizontalAlignment="Left">+</Button>
    <Button Width="20" HorizontalAlignment="Left" Margin="30,0,0,12" Name="btnRemove" VerticalAlignment="Bottom" Click="btnRemove_Click" Height="23">-</Button>
    <Button Height="23" HorizontalAlignment="Right" Margin="0,0,12,12" Name="btnApply" VerticalAlignment="Bottom" Width="49" Click="btnApply_Click">Apply</Button>
</Grid>

我认为两次单击是很好的功能.

I think the click twice bit is good functionality.

推荐答案

如果您有ListBox的多个实例，则可以考虑使用自定义列表框(从ListBox派生).请参阅此处的说明.

If you have multiple instance of ListBox then you may consider using your custom listbox (by deriving it from ListBox). See the explanation here.

或者，如果您只有1个(或只有少数几个)这样的ListBox并且不想为此创建单独的类，请使用此 hack :

Or, use this hack if you have only 1 (or only small number of) such ListBox and don't want to create a separate class for that:

<TextBox x:Name="TextBoxInsideListBoxItemTemplate" ... >

    <TextBox.Style>
        <Style TargetType="{x:Type TextBox}">
            <Setter Property="IsHitTestVisible" Value="False" />
            <Style.Triggers>
                <DataTrigger
                        Binding="{Binding IsSelected, RelativeSource={RelativeSource FindAncestor, 
                    AncestorType={x:Type ListBoxItem}, AncestorLevel=1}}"
                        Value="True">
                    <Setter Property="IsHitTestVisible" Value="True" />
                </DataTrigger>
            </Style.Triggers>
        </Style>
    </TextBox.Style>

</TextBox>

请注意，您必须再次单击以编辑TextBox中的文本(对我来说，这实际上很酷).

Note that you'll have to click once again to edit text in the TextBox (which is actually cool according to me).

这篇关于如果ItemTemplate中的TextBox获得焦点，则选择ListBoxItem的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！