WPF:如何在不同时禁用箭头键导航的情况下禁用选项卡导航? [英] WPF: How to disable tab navigation without also disabling arrow key navigation?

问题描述

我已经在窗口中的所有控件上将IsTabStop设置为false，因此，当我按下Tab键时，焦点不会移动(我需要使用Tab键执行其他操作).但这会破坏箭头键的导航-我在ListView中单击一个项目，然后按上/下键不再更改所选的项目.

I have set IsTabStop to false on all controls in my window, so that when I press the Tab key, the focus doesn't move (I need the Tab key for something else). But doing this breaks arrow key navigation - I click on an item in a ListView and then pressing up/down doesn't change the selected item anymore.

是否有一种方法可以禁用选项卡导航，但又无需触摸箭头键导航?它们似乎相关.

Is there a way to disable tab navigation, but without touching arrow key navigation? They seem to be related.

我尝试将IsTabStop设置为true，将TabNavigation设置为false，但这也不起作用.

I tried setting IsTabStop to true and TabNavigation to false, but it doesn't work either.

<ListView ItemContainerStyle="{StaticResource ItemCommon}" IsTabStop="False">
    <ListView.Resources>
        <Style x:Key="ItemCommon">
            <Setter Property="IsTabStop" Value="False"/>
            <Setter Property="KeyboardNavigation.TabNavigation" Value="None"/>
            <Setter Property="KeyboardNavigation.DirectionalNavigation" Value="Cycle"/>
        </Style>
    </ListView.Resources>
</ListView>

推荐答案

在窗口(或您不希望使用标签的控件的某些祖先)上吞下Tab键.

On your window (or some ancestor of the controls you don't want tab to work on) swallow the tab key.

您可以通过附加到PreviewKeyDown事件来吞下它，并在键为制表符时将e.Handled = true设置为

You can swallow it by attaching to the PreviewKeyDown event and set e.Handled = true when the key is a tab.

后面的纯代码

 public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();

            this.PreviewKeyDown += MainWindowPreviewKeyDown;
        }

        static void MainWindowPreviewKeyDown(object sender, KeyEventArgs e)
        {
            if(e.Key == Key.Tab)
            {
                e.Handled = true;
            }
        }
    }

您还可以这样设置键盘处理程序:

You can also set a Keyboard handler as such:

<Window x:Class="TabSwallowTest.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525"
        Keyboard.PreviewKeyDown="Window_PreviewKeyDown" >

    <StackPanel>
        <TextBox Width="200" Margin="10"></TextBox>
        <TextBox Width="200" Margin="10"></TextBox>
    </StackPanel>
</Window>

但是您需要一个相应的事件处理程序:

but you'll need a corresponding event handler:

   private void Window_PreviewKeyDown(object sender, KeyEventArgs e)

    {
        if (e.Key == Key.Tab)
        {
            e.Handled = true;
        }
    }

这篇关于WPF:如何在不同时禁用箭头键导航的情况下禁用选项卡导航?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！