方向更改時WP7列表寬度問題

Question

我想創建一個動態填充列表，以填充屏幕上的內容，因此我要做的是：首先：設計

<Border BorderBrush="Black" CornerRadius="25" Margin="0,10,0,0" BorderThickness="1" Background="Aqua">
 <Grid>
  <Grid.ColumnDefinitions>
   <ColumnDefinition Width="auto"/>
   <ColumnDefinition Width="*"/>
   <ColumnDefinition Width="auto"/>
  </Grid.ColumnDefinitions>
  <StackPanel Grid.Column="0" Orientation="Horizontal" HorizontalAlignment="Right" VerticalAlignment="Center">
   <Button Width="100" Name="RED"  Height="100" Click="ButtonDec_Click">
    <Button.Background>
     <ImageBrush ImageSource="/LifeCounter;component/Images/RED.png" />
    </Button.Background>
   </Button>
  </StackPanel>
  <StackPanel Margin="10,0,0,0" Grid.Column="1" HorizontalAlignment="Center" VerticalAlignment="Center" >
   <TextBlock Name="name" HorizontalAlignment="Center" VerticalAlignment="Center" Text="AAAAAAAAAAAAA" Foreground="{Binding color}" TextWrapping="Wrap" FontWeight="Bold" FontSize="22" />
   <TextBlock Name="count" HorizontalAlignment="Center" VerticalAlignment="Center" Text="CCCCC" FontWeight="Bold" TextWrapping="Wrap" FontSize="30" />
  </StackPanel>
  <StackPanel Grid.Column="2" Orientation="Horizontal" HorizontalAlignment="Right" VerticalAlignment="Center">
   <Button Grid.Column="0" Width="100" Name="GREEN"  Height="100" Click="ButtonInc_Click">
    <Button.Background>
     <ImageBrush ImageSource="/LifeCounter;component/Images/Green.png" />
    </Button.Background>
   </Button>
  </StackPanel>
 </Grid>
</Border>

結果是一個充滿整個屏幕的項目，與縱向或橫向無關緊要

並使其動態，只需簡單地列出數據模板即可

 <ListBox  Grid.Row="1" Name="countersList" HorizontalAlignment="Center" VerticalAlignment="Center" SelectionChanged="countersList_SelectionChanged">
  <ListBox.ItemTemplate>
   <DataTemplate>
    <Border BorderBrush="Black" CornerRadius="25" Margin="0,10,0,0" BorderThickness="1" Background="Aqua">
     <Grid>
      <Grid.ColumnDefinitions>
       <ColumnDefinition Width="auto"/>
       <ColumnDefinition Width="*"/>
       <ColumnDefinition Width="auto"/>
      </Grid.ColumnDefinitions>
      <StackPanel Grid.Column="0" Orientation="Horizontal" HorizontalAlignment="Right" VerticalAlignment="Center">
       <Button Width="100" Name="{Binding index}"  Height="100" Click="ButtonDec_Click">
        <Button.Background>
         <ImageBrush ImageSource="/LifeCounter;component/Images/RED.png" />
        </Button.Background>
       </Button>
      </StackPanel>
      <StackPanel Margin="10,0,0,0" Grid.Column="1" HorizontalAlignment="Center" VerticalAlignment="Center" >
       <TextBlock Name="name" HorizontalAlignment="Center" VerticalAlignment="Center" Text="{Binding name}" Foreground="{Binding color}" TextWrapping="Wrap" FontWeight="Bold" FontSize="22" />
       <TextBlock Name="count" HorizontalAlignment="Center" VerticalAlignment="Center" Text="{Binding count}" FontWeight="Bold" TextWrapping="Wrap" FontSize="30" />
      </StackPanel>
      <StackPanel Grid.Column="2" Orientation="Horizontal" HorizontalAlignment="Right" VerticalAlignment="Center">
       <Button Grid.Column="0" Width="100" Name="{Binding index}"  Height="100" Click="ButtonInc_Click">
        <Button.Background>
         <ImageBrush ImageSource="/LifeCounter;component/Images/Green.png" />
        </Button.Background>
       </Button>
      </StackPanel>
     </Grid>
    </Border>
   </DataTemplate>
  </ListBox.ItemTemplate>
 </ListBox>

結果是一個列表，其中包含了它的大小和內容

所以，我該如何解決它，我想要一個可以填滿整個屏幕的列表，無論是橫向還是縱向都沒關系

Answer 1

您遇到的問題是列表框中的項目未拉伸。

列表框項目的大小不是由ItemTemplate決定的，而是由ItemContainerStyle和ListBox的大小決定的。

首先添加到列表框：

<ListBox HorizontalAlignment="Stretch" ...>

確保ListBox本身是水平拉伸的。 如果將其設置在“ Center ，它將僅根據其內容/孩子的要求變寬。

然后將其添加到列表框：

<ListBox.ItemContainerStyle>
    <Style TargetType="ListBoxItem">
        <Setter Property="HorizontalContentAlignment"
                Value="Stretch" />
    </Style>
</ListBox.ItemContainerStyle>

此ItemContainerStyle將導致所有項目拉伸到父項的寬度（ListBox的項目面板）