UWP：无法使用触摸屏数字键盘将数字输入到屏蔽文本框

Question

我在项目中设计了一个屏蔽TextBox来输入时间格式的数字(使用冒号，如00:00:00(，它适用于物理键盘，但不幸的是不适用于触摸屏的数字键盘！

有人有任何建议如何解决这个问题吗？

这是 XAML 代码：

<Page
x:Class="test.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:test"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-    compatibility/2006"
xmlns:controls="using:Microsoft.Toolkit.Uwp.UI.Controls"
mc:Ignorable="d" Width="800" Height="480">
   <Grid Background="{ThemeResource     ApplicationPageBackgroundThemeBrush}">
    <TextBox
        controls:TextBoxMask.CustomMask="5:[0-5]"
        controls:TextBoxMask.Mask="5:59:59"
        Name="Textbox"
        VerticalAlignment="Center"
        HorizontalAlignment="Center"
        Width="200" Margin="442,166,158,282"/>
    <Button x:Name="button11" Content="1" HorizontalAlignment="Left"    Margin="130,122,0,0" VerticalAlignment="Top" Width="45" Height="45" Foreground="#FFA8A8A8" FontSize="24" FontWeight="Bold" BorderThickness="1" ClickMode="Press" BorderBrush="#FFC9C9C9" Tapped="button11_Tapped">
        <Button.Background>
            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FFE6E6E6" Offset="0.47"/>
                <GradientStop Color="White" Offset="1"/>
            </LinearGradientBrush>
        </Button.Background>
    </Button>
    <Button x:Name="button12" Content="2" HorizontalAlignment="Left"    Margin="186,122,0,0" VerticalAlignment="Top" Width="45" Height="45" Foreground="#FFA8A8A8" FontSize="24" FontWeight="Bold" BorderThickness="1" ClickMode="Press" BorderBrush="#FFC9C9C9">
        <Button.Background>
            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FFE6E6E6" Offset="0.47"/>
                <GradientStop Color="White" Offset="1"/>
            </LinearGradientBrush>
        </Button.Background>
    </Button>
    <Button x:Name="button13" Content="3" HorizontalAlignment="Left" Margin="242,122,0,0" VerticalAlignment="Top" Width="45" Height="45" Foreground="#FFA8A8A8" FontSize="24" FontWeight="Bold" BorderThickness="1" ClickMode="Press" BorderBrush="#FFC9C9C9">
        <Button.Background>
            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FFE6E6E6" Offset="0.47"/>
                <GradientStop Color="White" Offset="1"/>
            </LinearGradientBrush>
        </Button.Background>
    </Button>
    <Button x:Name="button14" Content="4" HorizontalAlignment="Left" Margin="130,178,0,0" VerticalAlignment="Top" Width="45" Height="45" Foreground="#FFA8A8A8" FontSize="24" FontWeight="Bold" BorderThickness="1" ClickMode="Press" BorderBrush="#FFC9C9C9">
        <Button.Background>
            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FFE6E6E6" Offset="0.47"/>
                <GradientStop Color="White" Offset="1"/>
            </LinearGradientBrush>
        </Button.Background>
    </Button>
    <Button x:Name="button15" Content="5" HorizontalAlignment="Left" Margin="186,178,0,0" VerticalAlignment="Top" Width="45" Height="45" Foreground="#FFA8A8A8" FontSize="24" FontWeight="Bold" BorderThickness="1" ClickMode="Press" BorderBrush="#FFC9C9C9" Tapped="button11_Tapped">
        <Button.Background>
            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FFE6E6E6" Offset="0.47"/>
                <GradientStop Color="White" Offset="1"/>
            </LinearGradientBrush>
        </Button.Background>
    </Button>
    <Button x:Name="button16" Content="6" HorizontalAlignment="Left" Margin="242,178,0,0" VerticalAlignment="Top" Width="45" Height="45" Foreground="#FFA8A8A8" FontSize="24" FontWeight="Bold" BorderThickness="1" ClickMode="Press" BorderBrush="#FFC9C9C9">
        <Button.Background>
            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FFE6E6E6" Offset="0.47"/>
                <GradientStop Color="White" Offset="1"/>
            </LinearGradientBrush>
        </Button.Background>
    </Button>
    <Button x:Name="button17" Content="7" HorizontalAlignment="Left" Margin="130,234,0,0" VerticalAlignment="Top" Width="45" Height="45" Foreground="#FFA8A8A8" FontSize="24" FontWeight="Bold" BorderThickness="1" ClickMode="Press" BorderBrush="#FFC9C9C9">
        <Button.Background>
            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FFE6E6E6" Offset="0.47"/>
                <GradientStop Color="White" Offset="1"/>
            </LinearGradientBrush>
        </Button.Background>
    </Button>
    <Button x:Name="button18" Content="8" HorizontalAlignment="Left" Margin="186,234,0,0" VerticalAlignment="Top" Width="45" Height="45" Foreground="#FFA8A8A8" FontSize="24" FontWeight="Bold" BorderThickness="1" ClickMode="Press" BorderBrush="#FFC9C9C9">
        <Button.Background>
            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FFE6E6E6" Offset="0.47"/>
                <GradientStop Color="White" Offset="1"/>
            </LinearGradientBrush>
        </Button.Background>
    </Button>
    <Button x:Name="button19" Content="9" HorizontalAlignment="Left" Margin="242,234,0,0" VerticalAlignment="Top" Width="45" Height="45" Foreground="#FFA8A8A8" FontSize="24" FontWeight="Bold" BorderThickness="1" ClickMode="Press" BorderBrush="#FFC9C9C9">
        <Button.Background>
            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FFE6E6E6" Offset="0.47"/>
                <GradientStop Color="White" Offset="1"/>
            </LinearGradientBrush>
        </Button.Background>
    </Button>
    <Button x:Name="button20" Content="0" HorizontalAlignment="Left" Margin="186,290,0,0" VerticalAlignment="Top" Width="45" Height="45" Foreground="#FFA8A8A8" FontSize="24" FontWeight="Bold" BorderThickness="1" ClickMode="Press" BorderBrush="#FFC9C9C9">
        <Button.Background>
            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FFE6E6E6" Offset="0.47"/>
                <GradientStop Color="White" Offset="1"/>
            </LinearGradientBrush>
        </Button.Background>
    </Button>
    <Button x:Name="button_delete11" Content="&#xE94F;" HorizontalAlignment="Left" Margin="242,290,0,0" VerticalAlignment="Top" Width="45" Height="45" Foreground="#FFA8A8A8" FontSize="16" BorderThickness="1" ClickMode="Press" BorderBrush="#FFC9C9C9" FontFamily="Segoe MDL2 Assets">
        <Button.Background>
            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FFE6E6E6" Offset="0.47"/>
                <GradientStop Color="White" Offset="1"/>
            </LinearGradientBrush>
        </Button.Background>
    </Button>
    <Button x:Name="button_accept11" Content="&#xEC61;" HorizontalAlignment="Left" Margin="298,122,0,0" VerticalAlignment="Top" Width="45" Height="213" Foreground="White" FontSize="20" BorderThickness="0" ClickMode="Press" BorderBrush="{x:Null}" FontFamily="Segoe MDL2 Assets" FontWeight="Bold">
        <Button.Background>
            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FF6CC98A" Offset="1"/>
                <GradientStop Color="#FFA2FFC1"/>
            </LinearGradientBrush>
        </Button.Background>
    </Button>
    <Button x:Name="button_cancel11" Content="&#xEB90;" HorizontalAlignment="Left" Margin="130,290,0,0" VerticalAlignment="Top" Width="45" Height="45" Foreground="White" FontSize="18" BorderThickness="0" BorderBrush="{x:Null}" ClickMode="Press" FontFamily="Segoe MDL2 Assets">
        <Button.Background>
            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                <GradientStop Color="#FFF75959" Offset="1"/>
                <GradientStop Color="#FFFF9E9E"/>
            </LinearGradientBrush>
        </Button.Background>
    </Button>
    <TextBox
        x:Name="Textbox_Copy"
        VerticalAlignment="Center"
        HorizontalAlignment="Center"
        Width="200" Margin="442,274,158,174"/>
</Grid>
</Page>

这是背后的代码：

public sealed partial class MainPage : Page
{
    public MainPage()
    {
        this.InitializeComponent();
    }
    private void button11_Tapped(object sender, TappedRoutedEventArgs e)
    {
        Button Btn = (Button)sender;
        Textbox_Copy.Text = Textbox_Copy.Text + Btn.Content;
    }
}

Answer 1

我以前遇到过这个问题。由于某些事件得到处理，因此发生了此问题。检查在使用任何工具(如 xaml 间谍(指定的文本框时是否处理任何事件