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我有一个 WPF 表单，我想用它进行箭头键导航。当前系统已关闭，即使我已成功指定选项卡导航顺序。我有两排三个单选按钮。当我在中间按钮，顶行，我应该能够点击左箭头并选择顶行的第一个按钮；相反，它选择第一个按钮，底行。我该如何纠正？

更新：

<Grid>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="20*"/>
        <ColumnDefinition Width="80*"/>
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
        <RowDefinition Height="15*"/>
        <RowDefinition Height="15*"/>
        <RowDefinition Height="15*"/>
        <RowDefinition Height="30*"/>
        <RowDefinition Height="25*"/>
    </Grid.RowDefinitions>
    <Label Grid.Column="0" Grid.Row="0" Content="Who:" VerticalAlignment="Top" HorizontalAlignment="Right" Margin="0,0,5,0" FontSize="12"/>
    <Label Grid.Column="0" Grid.Row="1" Content="Caller:" VerticalAlignment="Top" HorizontalAlignment="Right" Margin="0,0,5,0" />
    <Label Grid.Column="0" Grid.Row="2" Content="Office:" VerticalAlignment="Top" HorizontalAlignment="Right" Margin="0,0,5,0" />
    <Label Grid.Column="0" Grid.Row="3" Content="Name:" VerticalAlignment="Top" HorizontalAlignment="Right" Margin="0,0,5,0" />
    <Button Grid.Column="0" Grid.Row="4" Content="Find" VerticalAlignment="Bottom" HorizontalAlignment="Left" Margin="0,0,0,0" Width="50" Command="{Binding Path=FindCommand}" IsDefault="True" Click="Button_Click" TabIndex="9" />
    <Grid Grid.Column="1" Grid.Row="0">
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition/>
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>
        <RadioButton Content="All People" Grid.Column="0" HorizontalAlignment="Left" Margin="0,5,0,0" VerticalAlignment="Top" IsChecked="{Binding Path=IsPersonAll}" TabIndex="3" />
        <RadioButton Content="Users Only" Grid.Column="1" HorizontalAlignment="Left" Margin="0,5,0,0" VerticalAlignment="Top" IsChecked="{Binding Path=IsPersonUser}" TabIndex="4" />
        <RadioButton Content="Admin Only" Grid.Column="2" HorizontalAlignment="Left" Margin="0,5,0,0" VerticalAlignment="Top" TabIndex="5" />
    </Grid>
    <Grid Grid.Column="1" Grid.Row="1">
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition/>
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>
        <RadioButton Content="Off Campus" Grid.Column="0" HorizontalAlignment="Left" Margin="0,5,0,0" VerticalAlignment="Top" IsChecked="{Binding Path=IsCallerOff}" TabIndex="6" />
        <RadioButton Content="Admin" Grid.Column="1" HorizontalAlignment="Left" Margin="0,5,0,0" VerticalAlignment="Top" IsChecked="{Binding Path=IsCallerOnAd}" TabIndex="7" />
        <RadioButton Content="User" Grid.Column="2" HorizontalAlignment="Left" Margin="0,5,0,0" VerticalAlignment="Top" TabIndex="8" />
    </Grid>
    <ComboBox 
        Grid.Column="1" Grid.Row="2" 
        Height="25" HorizontalAlignment="Stretch" 
        Margin="0,0,0,0" VerticalAlignment="Top" 
        ItemsSource="{Binding Path=Offices}"
        SelectedItem="{Binding Path=Office}" TabIndex="2" />
    <Grid Grid.Column="1" Grid.Row="3">
        <Grid.ColumnDefinitions>
            <ColumnDefinition />
            <ColumnDefinition />
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="55*"/>
            <RowDefinition Height="45*"/>
            <RowDefinition Height="50*"/>
    </Grid.RowDefinitions>
        <TextBox Name="lName" Grid.Column="0" Grid.Row="0" Margin="0,0,5,0" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="22" Text="{Binding Path=LastName, UpdateSourceTrigger=PropertyChanged}" TabIndex="0" />
        <TextBox Grid.Column="1" Grid.Row="0" Margin="5,0,0,0" VerticalAlignment="Top" HorizontalAlignment="Stretch" Height="22" Text="{Binding Path=FirstName, UpdateSourceTrigger=PropertyChanged}" TabIndex="1" />
        <Label Grid.Column="0" Grid.Row="1" Content="Last Name" HorizontalAlignment="Left" Margin="-5,-5,0,0" VerticalAlignment="Top" />
        <Label Grid.Column="1" Grid.Row="1" Content="First Name" HorizontalAlignment="Left" Margin="0,-5,0,0" VerticalAlignment="Top" />
        <Label Grid.Row="2" Grid.ColumnSpan="2" Content="Please supply search information in Department or Name." Foreground="Red" HorizontalAlignment="Stretch" Margin="-5,-5,0,0" VerticalAlignment="Top" Height="26" Visibility="{Binding Path=ErrVisibility}"/>
    </Grid>
</Grid>
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1 回答 1

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这对我来说也是一种奇怪的行为，在玩弄它之后我可以告诉你它是由 Horizo​​ntalAlignment 属性引起的，但我无法真正解释为什么。也许其他人可以对此有所了解。

更多信息：

在您的情况下，控件由 content 属性按字母顺序排列。您可以通过更改轻松测试

<RadioButton Content="All People" Grid.Column="0" HorizontalAlignment="Left"

至

<RadioButton Content="Pall People" Grid.Column="0" HorizontalAlignment="Left"

更改后，由于字母顺序，控件现在从右到左正确地集中在第一行：用户 -> Pall 人员 -> 校外。

由于我不知道这种行为，我尝试通过使用以下 XAML 创建一个新项目来重现，但箭头键的行为与预期的一样，将下一个邻居集中在箭头键的方向：

<Grid>
        <Grid.RowDefinitions>
            <RowDefinition></RowDefinition>
            <RowDefinition></RowDefinition>
        </Grid.RowDefinitions>

        <Grid Grid.Row="0">
            <Grid.RowDefinitions>
                <RowDefinition></RowDefinition>
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition></ColumnDefinition>
                <ColumnDefinition></ColumnDefinition>
                <ColumnDefinition></ColumnDefinition>
            </Grid.ColumnDefinitions>
            <RadioButton Grid.Column="0" Content="All People"></RadioButton>
            <RadioButton Grid.Column="1" Content="Users Only"></RadioButton>
            <RadioButton Grid.Column="2" Content="Admin Only"></RadioButton>
        </Grid>

        <Grid Grid.Row="1">
            <Grid.RowDefinitions>
                <RowDefinition></RowDefinition>
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition></ColumnDefinition>
                <ColumnDefinition></ColumnDefinition>
                <ColumnDefinition></ColumnDefinition>
            </Grid.ColumnDefinitions>
            <RadioButton Grid.Column="0" Content="Off Campus"></RadioButton>
            <RadioButton Grid.Column="1" Content="Admin"></RadioButton>
            <RadioButton Grid.Column="2" Content="User"></RadioButton>
        </Grid>
</Grid>

所以我删除了你的 xaml 单选按钮的属性，直到我最终通过删除 Horizo​​ntalAlignment 来达到目的。

XAML 现在按预期工作，至少对于单选按钮：

<Grid Grid.Column="1" Grid.Row="0">
    <Grid.ColumnDefinitions>
        <ColumnDefinition/>
        <ColumnDefinition/>
        <ColumnDefinition/>
    </Grid.ColumnDefinitions>
    <RadioButton Content="All People" Grid.Column="0" Margin="0,5,0,0" VerticalAlignment="Top" IsChecked="{Binding Path=IsPersonAll}" TabIndex="3" />
    <RadioButton Content="Users Only" Grid.Column="1" Margin="0,5,0,0" VerticalAlignment="Top" IsChecked="{Binding Path=IsPersonUser}" TabIndex="4" />
    <RadioButton Content="Admin Only" Grid.Column="2" Margin="0,5,0,0" VerticalAlignment="Top" TabIndex="5" />
</Grid>
<Grid Grid.Column="1" Grid.Row="1">
    <Grid.ColumnDefinitions>
        <ColumnDefinition/>
        <ColumnDefinition/>
        <ColumnDefinition/>
    </Grid.ColumnDefinitions>
    <RadioButton Content="Off Campus" Grid.Column="0" Margin="0,5,0,0" VerticalAlignment="Top" IsChecked="{Binding Path=IsCallerOff}" TabIndex="6" />
    <RadioButton Content="Admin" Grid.Column="1"  Margin="0,5,0,0" VerticalAlignment="Top" IsChecked="{Binding Path=IsCallerOnAd}" TabIndex="7" />
    <RadioButton Content="User" Grid.Column="2" Margin="0,5,0,0" VerticalAlignment="Top" TabIndex="8" />
</Grid>
于 2012-07-14T01:26:10.553 回答