Question

我的C＃代码有效，但XAML代码无效...我不知道我犯了什么错误。我是XAML的新手，我试着学习它。当我删除此代码时：

KeyDown =“HandleKeyDown”

Initialized =“MainWindow_Initilized”Background =“DimGray”＆gt;

然后没有错误。

<Window x:Class="Tetris.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="570" Width="525">
    KeyDown = "HandleKeyDown" 
    Initialized = "MainWindow_Initilized" Background ="DimGray">

  <DockPanel LastChildFill="False">
    <StackPanel DockPanel.Dock="Right" Width="127">
      <Label Content="Label" Height="56" Name="Scores" FontSize="28" FontWeight="Bold" />
      <Label Content="Label" Height="56" Name="Lines" FontSize="28" FontWeight="Bold"/>
    </StackPanel>
    <Grid Name="MainGrid" Height="500" Width="250">
      <Grid.RowDefinitions>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
        <RowDefinition/>
      </Grid.RowDefinitions>
      <Grid.ColumnDefinitions>
        <ColumnDefinition/>
        <ColumnDefinition/>
        <ColumnDefinition/>
        <ColumnDefinition/>
        <ColumnDefinition/>
        <ColumnDefinition/>
        <ColumnDefinition/>
        <ColumnDefinition/>
        <ColumnDefinition/>
        <ColumnDefinition/>
      </Grid.ColumnDefinitions>
    </Grid>
  </DockPanel>
 </Window>

Answer 1

在您声明>属性之前，您还有一个额外的KeyDown。

注意颜色突出显示停止

<Window x:Class="Tetris.MainWindow"  
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"  
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"  
    Title="MainWindow" Height="570" Width="525">  
    KeyDown = "HandleKeyDown"   
    Initialized = "MainWindow_Initilized" Background ="DimGray">

我认为你并不打算那样做。

Answer 2

因为您关闭了Window标记两次：

Title="MainWindow" Height="570" Width="525">
KeyDown = "HandleKeyDown" 
Initialized = "MainWindow_Initilized" Background ="DimGray">

您在Width="525"之后和Background ="DimGray"之后再次关闭了它。删除Width="525"之后的那个，如果您在Window XAML的最底部有</Window>，则应该没问题。

此外，如果您尝试使用KeyDown来实现键盘快捷键，则应该执行以下操作：

<Window.InputBindings>
<KeyBinding Gesture="Ctrl+O" Command="{commands:ApplicationCommand}" CommandParameter="OpenFile"/>
</Window.InputBindings>

为什么我的XAML代码没有运行？

2 个答案: