[英]Cannot input string in `TextBox` in WPF
我有兩個窗戶。 單擊MainWindow
的唯一一個按鈕將顯示第二個窗口PlayingGameWindow
,該窗口具有一個TextBox
和一個Button
。 但是,不能使用TextBox
和Button
:前者無法輸入,后者無法單擊。 他們都是灰色的。
MainWindow.xaml:
<Window x:Class="GuessFigure.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:GuessFigure"
mc:Ignorable="d"
Title="猜數字" Height="350" Width="525">
<Grid>
<Button x:Name="button" Content="開始游戲" HorizontalAlignment="Left" Margin="228,139,0,0" VerticalAlignment="Top" Width="75" Click="Button_Click"/>
</Grid>
</Window>
MainWindow.cs:
namespace GuessFigure
{
/// <summary>
/// MainWindow.xaml 的交互邏輯
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
//開始游戲按鈕
private void Button_Click(object sender, RoutedEventArgs e)
{
PlayingGameWindow playingGameWindow = new PlayingGameWindow();
playingGameWindow.Show();
Close();
}
}
}
PlayingGameWindow.xaml:
<Window x:Class="GuessFigure.PlayingGameWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:GuessFigure"
mc:Ignorable="d"
Title="PlayingGame" Height="300" Width="300">
<Grid
xmlns:viewmodel="clr-namespace:GuessFigure.ViewModel" IsEnabled="False">
<Grid.Resources>
<viewmodel:PlayGameViewModel x:Key="playGameViewModel"/>
</Grid.Resources>
<Grid.RowDefinitions>
<RowDefinition Height="40*"/>
<RowDefinition Height="51*"/>
<RowDefinition Height="81*"/>
<RowDefinition Height="40*"/>
<RowDefinition Height="58*"/>
</Grid.RowDefinitions>
<Grid.DataContext>
<Binding Source="{StaticResource playGameViewModel}" />
</Grid.DataContext>
<TextBlock x:Name="tbTime" HorizontalAlignment="Left" Margin="76,24,0,0" TextWrapping="Wrap" Text="{Binding Path=TimeText}" VerticalAlignment="Top" Grid.Row="4" Height="15" Width="88"/>
<TextBox x:Name="answerTextBox" HorizontalAlignment="Left" Height="23" Margin="76,37.8,0,0" TextWrapping="Wrap" Text="{Binding Path=UserAnswer}" VerticalAlignment="Top" Width="120" Grid.Row="2"/>
<TextBlock x:Name="roundNumber" HorizontalAlignment="Left" Margin="10,10,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Text="{Binding Path=RoundName}" PreviewTextInput="NumberValidationTextBox" Height="15"/>
<Button x:Name="button" Content="確認" HorizontalAlignment="Left" Margin="176,11,0,0" Grid.Row="3" VerticalAlignment="Top" Width="75" IsEnabled="True"/>
<TextBlock x:Name="currentQuestiontextBlock" HorizontalAlignment="Left" Margin="94,26,0,0" Grid.Row="1" TextWrapping="Wrap" Text="{Binding Path=Question}" VerticalAlignment="Top"/>
</Grid>
</Window>
玩GameWIndow.cs:
namespace GuessFigure
{
/// <summary>
/// PlayingGame.xaml 的交互邏輯
/// </summary>
public partial class PlayingGameWindow : Window
{
public PlayingGameWindow()
{
InitializeComponent();
}
private void NumberValidationTextBox(object sender, TextCompositionEventArgs e)
{
Regex regex = new Regex("[^0-9]+");
e.Handled
= regex.IsMatch(e.Text);
}
}
}
在第二個窗口中,您具有IsEnabled = false。 這將禁用您的所有輸入。
<Grid
xmlns:viewmodel="clr-namespace:GuessFigure.ViewModel" IsEnabled="False">
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