水平ListView内的UserControl无法垂直填充父级

时间:2016-11-18 12:28:08

标签: c# wpf listview user-controls

我需要水平显示UserControl中每个项目的ListView。可以使用StackPanel来完成,但据我所知StackPanel将包装,直到可以放置内容。但我需要垂直填充父级(在此示例中为ListView),就像其Grid多个ListBoxes一样。顺便说一下,我的UserControl是这样的:

<UserControl x:Class="ResourceEditor.LanguagePanel"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:resources="clr-namespace:ResourceEditor.Resources"            
         xmlns:viewModel="clr-namespace:ResourceEditor.ViewModel">
<Grid>
    <Grid.RowDefinitions>
        <RowDefinition Height="*"></RowDefinition>
        <RowDefinition Height="Auto"/>
    </Grid.RowDefinitions>
    <DockPanel Grid.Row="1"  LastChildFill="True" DockPanel.Dock="Bottom">
        <CheckBox HorizontalAlignment="Center" VerticalAlignment="Center" DockPanel.Dock="Right" IsChecked="{Binding SortByThis}"></CheckBox>
        <UniformGrid Columns="2" Rows="0">
            <Button Content="{x:Static resources:Strings.Save}" DockPanel.Dock="Left" Command="{Binding SaveCommand}"></Button>
            <Button Content="{x:Static resources:Strings.Reset}" DockPanel.Dock="Left" Command="{Binding ResetCommand}"></Button>
        </UniformGrid>

    </DockPanel>


        <ListBox Grid.Row="0" SelectedItem="{Binding SelectedWord}" ItemsSource="{Binding Words}">
            <i:Interaction.Triggers>
                <i:EventTrigger EventName="MouseDoubleClick">
                    <command:EventToCommand Command="{Binding Mode=OneTime, Path=EnableEditingCommand}"
                            PassEventArgsToCommand="False" />
                </i:EventTrigger>
            </i:Interaction.Triggers>
            <ListBox.ItemTemplate>
                <HierarchicalDataTemplate DataType="viewModel:WordNodeVM">
                <TextBox IsEnabled="{Binding DataContext.CanEdit, RelativeSource={RelativeSource AncestorType=UserControl}}" Text="{Binding Name}"></TextBox>
                </HierarchicalDataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
</Grid>

这就是我使用它的方式:

  <ListView Grid.Row="2" ItemsSource="{Binding Languages}">
        <ListView.ItemContainerStyle>
            <Style TargetType="ListViewItem">
                <Setter Property="Focusable" Value="false"/>
            </Style>
        </ListView.ItemContainerStyle>
        <ListView.ItemsPanel>
            <ItemsPanelTemplate>
                <UniformGrid Rows="1" Columns="{Binding Languages.Count}">

                </UniformGrid>
            </ItemsPanelTemplate>
        </ListView.ItemsPanel>
        <ListView.ItemTemplate>
            <HierarchicalDataTemplate DataType="{ x:Type viewModel:LanguagePanelViewModel}">
                <resourceEditor:LanguagePanel DataContext="{Binding}"></resourceEditor:LanguagePanel>
            </HierarchicalDataTemplate>
        </ListView.ItemTemplate>
    </ListView>

我尝试了所有可能的解决方案,更改容器,使用路线,内容对齐,但无法让我的用户控制来填充垂直空间。首先我认为UserControl有问题,因为它可能表现得像StackPanel,但事实并非如此。

1 个答案:

答案 0 :(得分:0)

我无法找到当前问题的解决方案。但就我想要的行为而言,我通过这种方式实现了这一目标: 我从布局中删除了ListView。添加了空Grid。在后台代码中,我添加了这个

 public MainWindow()
    {
        var model=new MainViewModel(loadGrid);
        DataContext = model;
        InitializeComponent();
        Closing += (s, e) => ViewModelLocator.Cleanup();

    }

    void loadGrid(IList<LanguagePanelViewModel> panels)
    {

        if (panels == null || !panels.Any())
            return;

        for (int i = 0; i < panels.Count; i++)
        {
            mainGrid.ColumnDefinitions.Add(new ColumnDefinition { Width = new GridLength(1, GridUnitType.Star)});
            var panel = new LanguagePanel { DataContext = panels[i] };
            Grid.SetColumn(panel, i);
            mainGrid.Children.Add(panel);
        }
    }

我试图不破坏MVVM规则,当我的相关列表发生变化时,会调用这个loadGrid方法。由于这不能回答这个问题,我不会接受它作为答案,希望得到健全的答案。