我有一个Windows Store应用程序,其中包含高度不同的网格列表框(ListBox
)。我无法使它们顶部对齐。我尝试了各种VerticalAlignment
和VerticalContentAlignment
组合,但它们总是在垂直方向上居中。
以下是我的XAML代码:
<Page
x:Class="MyApp.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:MyApp"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
<Grid Margin="50,50,50,50" HorizontalAlignment="Stretch" Width="Auto">
<Grid.RowDefinitions>
<RowDefinition Height="50"></RowDefinition>
<RowDefinition Height="80"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
</Grid.RowDefinitions>
<TextBlock Grid.Row="0" Text="" Margin="12,0,0,0" Style="{StaticResource HeaderTextStyle}" />
<Grid Grid.Row="1" Margin="30,0,0,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="300"></ColumnDefinition>
<ColumnDefinition Width="15"></ColumnDefinition>
<ColumnDefinition Width="100"></ColumnDefinition>
<ColumnDefinition Width="15"></ColumnDefinition>
<ColumnDefinition Width="1*"></ColumnDefinition>
</Grid.ColumnDefinitions>
<TextBox Grid.Column="0" x:Name="bxAddItem" Width="300" Height="28" Margin="0,0,0,0" Text="Item text" KeyUp="bxAddItem_KeyUp" GotFocus="bxAddItem_GotFocus" LostFocus="bxAddItem_LostFocus"></TextBox>
<ComboBox Grid.Column="2" x:Name="comboList" SelectionChanged="comboList_SelectionChanged" Width="100" Height="32">
<ComboBoxItem Tag="0">No List</ComboBoxItem>
</ComboBox>
<Button Grid.Column="4" x:Name="btnAddItem" Click="AddItem_Click" HorizontalAlignment="Left" Background="#45000000" Height="34">Add an Item</Button>
</Grid>
<ScrollViewer HorizontalScrollBarVisibility="Visible" Grid.Row="2">
<ListBox Width="Auto" VerticalContentAlignment="Top" ItemsSource="{Binding ToDoLists}">
<ListBox.ItemTemplate>
<DataTemplate>
<Grid Background="Beige">
<Grid.RowDefinitions>
<RowDefinition Height="50"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
</Grid.RowDefinitions>
<TextBlock Text="{Binding Title}"></TextBlock>
<ListBox Grid.Row="1" Grid.Column="0" Name="ToDoList" ItemsSource="{Binding Path=Items}"
Margin="24,0,0,0" Height="Auto" MinWidth="200" VerticalAlignment="Stretch"
BorderBrush="BlueViolet" SelectionChanged="ToDoList_SelectionChanged">
<ListBox.ItemTemplate>
<DataTemplate>
<Grid>
<TextBlock Text="{Binding ItemName}"></TextBlock>
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<VirtualizingStackPanel Orientation="Vertical"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ListBox>
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<VirtualizingStackPanel VerticalAlignment="Top" Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ListBox>
</ScrollViewer>
</Grid>
</Grid>
</Page>
编辑:
Sheridan的答案对我无效。页面上可能有其他原因导致此问题。
我已更新问题,包括整个页面代码。
编辑2:
这篇文章被错误地标记为WPF,实际上问题出在Windows Store应用程序中。这段代码在WPF中完美运作,因此引起了混淆。但是,在Windows Store应用程序中却不起作用。