我有一个ListView,它通过包含图像和文本(文件浏览器)的ListViewItems填充视图。当用户按下所选项目上的“Enter”键时,我该如何触发命令并遵守MVVM设计模式?我搜索过并找到了一些解决方案,但似乎都对我无效。
<ListView ScrollViewer.HorizontalScrollBarVisibility="Hidden"
VirtualizingPanel.IsVirtualizing="True"
VirtualizingPanel.ScrollUnit="Item"
Background="#fdfaf4"
Name="filesView"
ItemsSource="{Binding Items}">
<ListView.ItemTemplate>
<DataTemplate>
<!-- The image and item name -->
<Grid Width="{Binding ActualWidth, ElementName=filesView, Converter={x:Static converter:GridWidthToListViewWidthConverter.Instance}}"
Background="Transparent">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="0.07*" MinWidth="25" MaxWidth="40" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<!-- Drive, file or folder -->
<Image Grid.Column="0"
Margin="0,0,5,0"
Name="itemType"
Source="{Binding Type,
Converter={x:Static converter:HeaderToImageConverter.Instance}}" />
<!-- The text is binded to the image size, so they'll expand/shrink together -->
<TextBlock Grid.Column="1"
VerticalAlignment="Center"
FontSize="{Binding ActualHeight,
ElementName=itemType, Converter={x:Static converter:ImageSizeToFontSizeConverter.Instance}}"
Text="{Binding Name}" />
<!-- The command to enter a drive/folder is called from here -->
<Grid.InputBindings>
<MouseBinding Gesture="LeftDoubleClick" Command="{Binding EnterCommand, Mode=TwoWay}" />
<KeyBinding Key="Enter" Command="{Binding EnterCommand, Mode=TwoWay}" />
</Grid.InputBindings>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
鼠标绑定正常工作。我尝试将KeyBinding放在ListView而不是网格中,并使用SelectedItem属性获取焦点项目,但仍然没有效果。