我可以在 WPF 中使用 InputBindings 启用 PreviewClick 吗？

发布于 2024-08-28 15:54:58 字数 608 浏览 8 评论 0 原文

我想检测用户何时单击列表视图上的项目，而不像我执行命令绑定那样使用事件，并且我不喜欢所有无意义的行为。我已经尝试过：

<ListView x:Name="MainList" Margin="2,8,6,8" Background="Black" 
   ItemsSource="{Binding Path=AssetsVM.Data, Mode=OneWay}" 
   BorderBrush="{x:Null}" >

    <ListView.InputBindings>
         <MouseBinding Command="{Binding Path=AssetsVM.SelectActivo}" 
            CommandParameter="{Binding ElementName=MainList, Path=SelectedItem}" 
            MouseAction="LeftClick" />
    </ListView.InputBindings>

如果我单击列表视图，则效果很好，但不适用于项目。我需要的是一种启用“预览”的方法，或者具有充当预览的 MouseAction/Gesture。其中之一可能吗？

原文

I want to detect when a user clicks on an item on a listview, without using events as I do command binding and I don't like all the nonsense of the behaviours. I have tried this:

<ListView x:Name="MainList" Margin="2,8,6,8" Background="Black" 
   ItemsSource="{Binding Path=AssetsVM.Data, Mode=OneWay}" 
   BorderBrush="{x:Null}" >

    <ListView.InputBindings>
         <MouseBinding Command="{Binding Path=AssetsVM.SelectActivo}" 
            CommandParameter="{Binding ElementName=MainList, Path=SelectedItem}" 
            MouseAction="LeftClick" />
    </ListView.InputBindings>

This works fine if I click on the listview but does not work on the items. What I need is either a way to enable "Preview" or have a MouseAction/Gesture that behaves as preview. Are either one of these possible?

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鹊巢 2024-09-04 15:54:58

当使用这样的命令驱动架构时，我通常使用 AttachedCommandBehavior 来回避 Microsoft 没有制作 MouseBinding.Command 依赖属性。下面显示了如何使用此方法获得所需功能的示例：

<ListView x:Name="MainList" ItemsSource="{Binding Path=AssetsVM.Data, Mode=OneWay}">
    <ListView.ItemContainerStyle>
        <Style TargetType="ListViewItem">
            <Style.Setters>
                <Setter Property="acb:CommandBehavior.Event" Value="Selected" />
                <Setter Property="acb:CommandBehavior.Command" Value="{Binding DataContext.AssetsVM.SelectActivo, ElementName=MainList}" />
                <Setter Property="acb:CommandBehavior.CommandParameter" Value="{Binding}" />
            </Style.Setters>
        </Style>
    </ListView.ItemContainerStyle>
</ListView>

When using a command-driven architecture like this, I usually use AttachedCommandBehavior to get around the fact that Microsoft did not make MouseBinding.Command a DependencyProperty. An example of how to do get the functionality you want using this approach is shown below:

<ListView x:Name="MainList" ItemsSource="{Binding Path=AssetsVM.Data, Mode=OneWay}">
    <ListView.ItemContainerStyle>
        <Style TargetType="ListViewItem">
            <Style.Setters>
                <Setter Property="acb:CommandBehavior.Event" Value="Selected" />
                <Setter Property="acb:CommandBehavior.Command" Value="{Binding DataContext.AssetsVM.SelectActivo, ElementName=MainList}" />
                <Setter Property="acb:CommandBehavior.CommandParameter" Value="{Binding}" />
            </Style.Setters>
        </Style>
    </ListView.ItemContainerStyle>
</ListView>

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