xaml – 通用App ListView项目Horizo​​ntalAlignment

我目前的XAML看起来像这样：

<Page
x:Class="MDControl.MainPage"
xmlns="http://scheR_702_11845@as.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://scheR_702_11845@as.microsoft.com/winfx/2006/xaml"
xmlns:local="using:MDControl"
xmlns:d="http://scheR_702_11845@as.microsoft.com/expression/blend/2008"
xmlns:mc="http://scheR_702_11845@as.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">

<Page.resources>
    <CollectionViewsource x:Name="messages" source="{Binding mmessages}"/>

    <DataTemplate x:Key="SentmessageTemplate">
        <StackPanel Padding="10" Margin="5" BACkground="Teal" HorizontalAlignment="Right" Width="Auto">
            <TextBlock Text="{Binding messageTypE}" FontWeight="Bold" textwrapping="Nowrap" Foreground="White"/>
            <TextBlock Text="{Binding messageBody}" textwrapping="Wrap" Foreground="White" />
            <TextBlock Text="{Binding timestamp}" textwrapping="Nowrap" Foreground="White" FontStyle="Italic" FontSize="12"/>
        </StackPanel>
    </DataTemplate>

    <DataTemplate x:Key="ReceivedmessageTemplate">
        <StackPanel Padding="10" Margin="5" BACkground="LightGray">
            <TextBlock Text="{Binding messageTypE}" FontWeight="Bold" textwrapping="Nowrap"/>
            <TextBlock Text="{Binding messageBody}" textwrapping="Wrap"/>
            <TextBlock Text="{Binding timestamp}" textwrapping="Nowrap" TextAlignment="Right" FontStyle="Italic" FontSize="12"/>
        </StackPanel>
    </DataTemplate>

    <Style TargetType="ListViewItem" x:Key="SentmessageStyle">
        <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    </Style>

    <Style TargetType="ListViewItem" x:Key="ReceivedmessageStyle">
        <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    </Style>

    <local:messageListTemplate@R_696_10288@ctor x:Key="messageListTemplate@R_696_10288@ctor"
        SentmessageTemplate="{Staticresource SentmessageTemplatE}"
        ReceivedmessageTemplate="{Staticresource ReceivedmessageTemplatE}">
    </local:messageListTemplate@R_696_10288@ctor>

    <local:messageListContainerStyle@R_696_10288@ctor x:Key="messageListContainerStyle@R_696_10288@ctor"
        SentmessageStyle="{Staticresource SentmessageStylE}"
        ReceivedmessageStyle="{Staticresource ReceivedmessageStylE}">
    </local:messageListContainerStyle@R_696_10288@ctor>
</Page.resources>

<Grid BACkground="{Themeresource ApplicationPageBACkgroundThemeBrush}">
    <ListView x:Name="messageList" ScrollViewer.VerticalScrollBarVisibility="Visible" ItemContainerStyle@R_696_10288@ctor="{Staticresource messageListContainerStyle@R_696_10288@ctor}" Itemssource="{Binding source={Staticresource messages}}" ItemTemplate@R_696_10288@ctor="{Staticresource messageListTemplate@R_696_10288@ctor}" Margin="10,120,10,50" VerticalAlignment="Bottom" IsDoubleTapEnabled="false"/>
</Grid>

我可以更改什么以使“已发送”消息正确对齐？目前它们出现了我想要的蓝绿色背景,但它们仍然是左对齐而不是右对齐.我对XAML有点新意,如果我离开这里,请原谅我.

更新：解决方案

网格是关键,我最终必须使用多个网格来实现正确的右对齐,并结合设置Horizo​​ntalContentAlignment的ItemContainerStyle.

<Page
x:Class="MDControl.MainPage"
xmlns="http://scheR_702_11845@as.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://scheR_702_11845@as.microsoft.com/winfx/2006/xaml"
xmlns:local="using:MDControl"
xmlns:d="http://scheR_702_11845@as.microsoft.com/expression/blend/2008"
xmlns:mc="http://scheR_702_11845@as.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">

<Page.resources>
    <CollectionViewsource x:Name="messages" source="{Binding mmessages}"/>

    <DataTemplate x:Key="SentmessageTemplate">
        <Grid>
            <Grid.RowDeFinitions>
                <RowDeFinition Height="Auto"/>
            </Grid.RowDeFinitions>
            <Grid Height="Auto" Grid.Row="1" Margin="5" HorizontalAlignment="Right">
                <Grid.columnDeFinitions>
                    <columnDeFinition Width="*"/>
                </Grid.columnDeFinitions>
                <StackPanel Padding="10" BACkground="Teal">
                    <TextBlock Text="{Binding messageTypE}" FontWeight="Bold" textwrapping="Nowrap" Foreground="White" />
                    <TextBlock Text="{Binding messageBody}" textwrapping="Wrap" Foreground="White" />
                    <TextBlock Text="{Binding timestamp}" textwrapping="Nowrap" Foreground="White" FontStyle="Italic" FontSize="12" HorizontalAlignment="Right"/>
                </StackPanel>
            </Grid>
        </Grid>
    </DataTemplate>

    <DataTemplate x:Key="ReceivedmessageTemplate">
        <Grid>
            <Grid.RowDeFinitions>
                <RowDeFinition Height="Auto"/>
            </Grid.RowDeFinitions>
            <Grid Height="Auto" Grid.Row="1" Margin="5" HorizontalAlignment="Left">
                <Grid.columnDeFinitions>
                    <columnDeFinition Width="*"/>
                </Grid.columnDeFinitions>
                <StackPanel Padding="10" BACkground="LightGray">
                    <TextBlock Text="{Binding messageTypE}" FontWeight="Bold" textwrapping="Nowrap" />
                    <TextBlock Text="{Binding messageBody}" textwrapping="Wrap" />
                    <TextBlock Text="{Binding timestamp}" textwrapping="Nowrap" FontStyle="Italic" FontSize="12" HorizontalAlignment="Right"/>
                </StackPanel>
            </Grid>
        </Grid>
    </DataTemplate>

    <local:messageListTemplate@R_696_10288@ctor x:Key="messageListTemplate@R_696_10288@ctor"
        SentmessageTemplate="{Staticresource SentmessageTemplatE}"
        ReceivedmessageTemplate="{Staticresource ReceivedmessageTemplatE}">
    </local:messageListTemplate@R_696_10288@ctor>
</Page.resources>

<Grid BACkground="{Themeresource ApplicationPageBACkgroundThemeBrush}">

    <ListView x:Name="messageList" ScrollViewer.VerticalScrollBarVisibility="Visible" Itemssource="{Binding source={Staticresource messages}}" ItemTemplate@R_696_10288@ctor="{Staticresource messageListTemplate@R_696_10288@ctor}" Margin="10,50" VerticalAlignment="Bottom" IsDoubleTapEnabled="false">
        <ListView.ItemContainerStyle>
            <Style TargetType="ListViewItem">
                <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
            </Style>
        </ListView.ItemContainerStyle>
    </ListView>
</Grid>