为列表视图列设置不同的对齐方式

Question

我在绘制列左对齐或居中对齐的列表视图时遇到问题。我查看了在这里或其他论坛上找到的一些解决方案，但它们似乎适用于所有列，或者我无法让它们工作。

到目前为止，我得到的最好的代码是这段代码，但所有内容都是左对齐的（我已经放入右对齐来测试代码）。有人可以告诉我哪里出错了吗？

<ListView Name="lsvQuestions" DockPanel.Dock="Bottom">                
     <ListView.View>
         <GridView>
             <GridViewColumn Width="450" Header="Question Text">
                 <GridViewColumn.CellTemplate>
                     <DataTemplate>
                         <TextBlock Text="{Binding QuestionText}" TextAlignment="Left"/>
                     </DataTemplate>
                 </GridViewColumn.CellTemplate>
                 </GridViewColumn>
                 <GridViewColumn Width="200" Header="Type">
                    <GridViewColumn.CellTemplate>
                        <DataTemplate>
                            <TextBlock Text="{Binding QuestionType}" TextAlignment="Right"/>
                        </DataTemplate>
                    </GridViewColumn.CellTemplate>
                 </GridViewColumn>
                 <GridViewColumn Width="100" Header="Page Number">
                     <GridViewColumn.CellTemplate>
                         <DataTemplate>
                             <TextBlock Text="{Binding QuestionPageNumber}" TextAlignment="Center"/>
                         </DataTemplate>
                     </GridViewColumn.CellTemplate>
                 </GridViewColumn>
                 <GridViewColumn Width="100" Header="Order">
                    <GridViewColumn.CellTemplate>
                        <DataTemplate>
                            <TextBlock Text="{Binding QuestionOrder}" TextAlignment="Center"/>
                        </DataTemplate>
                    </GridViewColumn.CellTemplate>
                </GridViewColumn>
            </GridView>
        </ListView.View>               
    </ListView>

Answer 1

默认情况下，您的

ListViewItem

不会拉伸内容，这就是所有项目都显示在左侧的原因。添加这个就可以了：

<ListView.ItemContainerStyle>
    <Style TargetType="ListViewItem">
        <Setter Property="HorizontalContentAlignment" Value="Stretch" />
    </Style>
</ListView.ItemContainerStyle>

Answer 2

虽然 LPL 的提示已经解决了成千上万的麻烦，但我会更进一步，将 HorizontalContentAlignment 和 VerticalContentAlignment 定义为 stretch，以便在大多数使用的表驱动控件上实现预期的对齐行为：

• ListView 列标题和项目模板

• DataGrid 列标题和单元格模板。

    <Window x:Class="TaskManager.UI.Views.AcumuladosPorTarefaWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:v="clr-namespace:TaskManager.UI.Views"
    xmlns:catel="http://catel.codeplex.com"        
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    Title="AcumuladosPorTarefaWindow" Height="451.533" Width="323.305"
    >
    <Window.Resources>
    <Style TargetType="GridViewColumnHeader">
        <Setter Property="HorizontalContentAlignment" Value="Stretch" />
        <Setter Property="VerticalContentAlignment" Value="Stretch" />
    </Style>
    <Style TargetType="DataGridColumnHeader">
        <Setter Property="HorizontalContentAlignment" Value="Stretch" />
        <Setter Property="VerticalContentAlignment" Value="Stretch" />
    </Style>
    <Style TargetType="ListViewItem">
        <Setter Property="HorizontalContentAlignment" Value="Stretch" />
        <Setter Property="VerticalContentAlignment" Value="Stretch" />
    </Style>
    <Style TargetType="DataGridCell">
        <Setter Property="HorizontalContentAlignment" Value="Stretch" />
        <Setter Property="VerticalContentAlignment" Value="Stretch" />
    </Style>
    </Window.Resources>
    <StackPanel Orientation="Vertical">
  
    <ListView ItemsSource="{Binding AcumuladosPorTarefa}" SelectedItem="{Binding LinhaSelecionada}">
        <ListView.View>
            <GridView>
                <GridViewColumn>
                    <GridViewColumn.CellTemplate>
                        <DataTemplate>
                            <TextBlock Text="{Binding TarefaID}"/>
                        </DataTemplate>
                    </GridViewColumn.CellTemplate>
                    <GridViewColumnHeader>
                        <TextBlock Text="ID" TextAlignment="Center" />
                    </GridViewColumnHeader>
                </GridViewColumn>
                <GridViewColumn>
                    <GridViewColumn.CellTemplate>
                        <DataTemplate>
                            <TextBlock Text="{Binding Tarefa.Nome}"/>
                        </DataTemplate>
                    </GridViewColumn.CellTemplate>
                    <TextBlock Text="Nome" TextAlignment="Left"/>
                </GridViewColumn>
                <GridViewColumn>
                    <GridViewColumn.CellTemplate>
                        <DataTemplate>
                            <TextBlock Text="{Binding DuracaoInMS}" TextAlignment="Right" HorizontalAlignment="Stretch" />
                        </DataTemplate>
                    </GridViewColumn.CellTemplate>
                    <GridViewColumnHeader Width="auto">
                        <TextBlock Text="Duração" TextAlignment="Right"/>
                    </GridViewColumnHeader>
                </GridViewColumn>
            </GridView>
        </ListView.View>
    </ListView>
    <DataGrid ItemsSource="{Binding AcumuladosPorTarefa}" AutoGenerateColumns="False" SelectedItem="{Binding LinhaSelecionada}" CanUserAddRows="False" HorizontalAlignment="Stretch">
        <DataGrid.Columns>
            <DataGridTemplateColumn Width="auto" MinWidth="20" CanUserSort="True" CanUserReorder="True" CanUserResize="True">
                <DataGridTemplateColumn.Header>
                    <TextBlock Text="ID" TextAlignment="Right" />
                </DataGridTemplateColumn.Header>
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <TextBlock Text="{Binding TarefaID}" HorizontalAlignment="Stretch"/>
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
            <DataGridTemplateColumn Width="auto" MinWidth="150" CanUserSort="True">
                <DataGridTemplateColumn.HeaderTemplate>
                    <DataTemplate>
                        <TextBlock Text="Nome" HorizontalAlignment="Left"/>
                    </DataTemplate>
                </DataGridTemplateColumn.HeaderTemplate>
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <TextBlock Text="{Binding Tarefa.Nome}"/>
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
            <DataGridTemplateColumn Header="Duração" Width="auto" MinWidth="25" IsReadOnly="True">
                <DataGridTemplateColumn.HeaderTemplate>
                    <DataTemplate>
                        <TextBlock Text="Duração" TextAlignment="Right"/>
                    </DataTemplate>
                </DataGridTemplateColumn.HeaderTemplate>
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <TextBlock Text="{Binding DuracaoInMS}" TextAlignment="Right" />
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
        </DataGrid.Columns>
    </DataGrid>
    </StackPanel>
    </Window>
  

记住：您始终可以在应用程序级别定义默认样式和其他资源，这样您就不必在每个视图中都定义它。

希望它能帮助其他人，就像 LPL 的提示帮助我一样。