wpf边框控件跨越listboxItem的宽度 [英] wpf border control to span the width of listboxItem

问题描述

我试图在我的 wpf 应用程序中为业务对象定义一个 dataTemplate，其中的一个集合被绑定到一个 ListBox.

Im trying to define a dataTemplate for a business object in my wpf application a collection of which is being bound to a ListBox.

<UserControl.Resources>
    <DataTemplate x:Key="ResizedItemsDataTemplate" DataType="{x:Type resizer:ResizeMonitorItem}">
              <Border x:Name="bdr" BorderBrush="Blue" 
                                     BorderThickness="1" 
                                     CornerRadius="2" 
                                     Width="auto"
                                     HorizontalAlignment="Stretch"
                                     VerticalAlignment="Stretch">
                    <Grid Margin="2">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="14"></RowDefinition>
                            <RowDefinition Height="14"></RowDefinition>
                        </Grid.RowDefinitions>


                        <TextBlock Grid.Row="0" Text="{Binding SaveAsFileName}"></TextBlock>
                        <TextBlock Grid.Row="1" Text="{Binding ResizedImageFilePath}"></TextBlock>
                    </Grid>
             </Border>
    </DataTemplate>
</UserControl.Resources>
<Grid VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Margin="0">    
    <Border BorderThickness="0,0,0,5" BorderBrush="DarkGray" >
        <ListBox x:Name="ListBoxResizeItems" ItemsSource="{Binding Path=ResizeItems}" BorderThickness="0" ItemTemplate="{DynamicResource ResizedItemsDataTemplate}">
        </ListBox>
    </Border>
</Grid>

如何让用 x:Name=bdr 定义的边框跨越每个列表框项的整个宽度?目前它只跨越其中的文本块，不需要填充列表框的整个宽度，并且每个列表框也不同.

How can I get the border defined with x:Name=bdr to span the full width of each listbox item? At the moment it only spans the with of the textblocks inside it which dont neccessary fill the full width of the listboxitem and also vary for each listboxitem.

推荐答案

这可能与 ListBoxItems 本身没有占据 ListBox 的整个宽度有关.将 Horizo​​ntalContentAlignment="Stretch" 属性添加到您的 ListBox 中，看看它是否会拉伸各个项目以填充宽度.

This is probably more to do with the ListBoxItems themselves not taking up the full width of the ListBox. Add the HorizontalContentAlignment="Stretch" attribute to your ListBox and see if it stretches the individual items to fill the width.

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