为什么我看不到我创建的菜单？

Question

所以我创建了一个小的wpf应用程序来获得乐趣，我希望它有一个菜单。我创建了菜单，但没有，但是当我运行程序时，菜单根本没有显示出来。在菜单的代码是目前：

<Window x:Class="TBA_Alpha.MainWindow" 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    Title="TBA LogIn" Height="350" Width="525"> 
<Grid> 
    <PasswordBox x:Name="tbPsw" HorizontalAlignment="Left" Margin="214,143,0,0" VerticalAlignment="Top" Width="133" SelectionBrush="Black" Background="White"> 
     <PasswordBox.BorderBrush> 
      <LinearGradientBrush EndPoint="0,20" MappingMode="Absolute" StartPoint="0,0"> 
       <GradientStop Color="#FFABADB3" Offset="0.05"/> 
       <GradientStop Color="#FFE2E3EA" Offset="0.07"/> 
       <GradientStop Color="Black" Offset="1"/> 
      </LinearGradientBrush> 
     </PasswordBox.BorderBrush> 
    </PasswordBox> 
    <TextBox x:Name="tbUId" HorizontalAlignment="Left" Height="23" Margin="214,94,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="133" SelectionBrush="Black"> 
     <TextBox.Background> 
      <SolidColorBrush Color="White"/> 
     </TextBox.Background> 
     <TextBox.BorderBrush> 
      <LinearGradientBrush EndPoint="0,20" MappingMode="Absolute" StartPoint="0,0"> 
       <GradientStop Color="#FFABADB3" Offset="0.05"/> 
       <GradientStop Color="#FFE2E3EA" Offset="0.07"/> 
       <GradientStop Color="Black" Offset="1"/> 
      </LinearGradientBrush> 
     </TextBox.BorderBrush> 
    </TextBox> 
    <Button Content="LogIn" HorizontalAlignment="Left" Margin="239,200,0,0" VerticalAlignment="Top" Width="75" Click="Button_Click"/> 
    <TextBlock HorizontalAlignment="Left" Margin="214,73,0,0" TextWrapping="Wrap" Text="Your UserID:" VerticalAlignment="Top"/> 
    <TextBlock HorizontalAlignment="Left" Margin="214,122,0,0" TextWrapping="Wrap" Text="Your Password:" VerticalAlignment="Top"/> 
    <Menu HorizontalAlignment="Left" Height="25" VerticalAlignment="Top" Width="43" BorderThickness="1"> 
     <MenuItem Header=" New " RenderTransformOrigin="0.5,0.5" Width="63" Height="36" Background="White" Visibility="Visible" AllowDrop="True" IsHitTestVisible="True"> 
      <MenuItem Header=" User " Click="newUser"/> 
     </MenuItem> 
    </Menu> 
</Grid> 

任何任何帮助将大大赞赏的感谢。

编辑：增加了整个XAML代码为WPF，这里的菜单靠近代码的结束

编辑：删除所有的额外的东西，只留下头，仍然遇到了同样的问题

后

编辑：尝试的代码在不同的清洁项目和它的工作，谢谢，你

Answer 1

的问题是，大部分的控件的使用Magrin属性本身分开，而不是Grid的功能。由于他们都没有指定附加属性Grid.Row，它们都在同一行。由于Menu未指定Margin，因此它位于Grid的顶部，因此与其他控件重叠。

使用try实际电网行

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

    <PasswordBox x:Name="tbPsw" HorizontalAlignment="Left" Grid.Row="0" VerticalAlignment="Top" Width="133" SelectionBrush="Black" Background="White"> 
     <PasswordBox.BorderBrush> 
      <LinearGradientBrush EndPoint="0,20" MappingMode="Absolute" StartPoint="0,0"> 
       <GradientStop Color="#FFABADB3" Offset="0.05"/> 
       <GradientStop Color="#FFE2E3EA" Offset="0.07"/> 
       <GradientStop Color="Black" Offset="1"/> 
      </LinearGradientBrush> 
     </PasswordBox.BorderBrush> 
    </PasswordBox> 
    <TextBox x:Name="tbUId" HorizontalAlignment="Left" Height="23" Grid.Row="1" TextWrapping="Wrap" VerticalAlignment="Top" Width="133" SelectionBrush="Black"> 
     <TextBox.Background> 
      <SolidColorBrush Color="White"/> 
     </TextBox.Background> 
     <TextBox.BorderBrush> 
      <LinearGradientBrush EndPoint="0,20" MappingMode="Absolute" StartPoint="0,0"> 
       <GradientStop Color="#FFABADB3" Offset="0.05"/> 
       <GradientStop Color="#FFE2E3EA" Offset="0.07"/> 
       <GradientStop Color="Black" Offset="1"/> 
      </LinearGradientBrush> 
     </TextBox.BorderBrush> 
    </TextBox> 
    <Button Content="LogIn" HorizontalAlignment="Left" Grid.Row="2" VerticalAlignment="Top" Width="75" Click="Button_Click"/> 
    <TextBlock HorizontalAlignment="Left" Grid.Row="3" TextWrapping="Wrap" Text="Your UserID:" VerticalAlignment="Top"/> 
    <TextBlock HorizontalAlignment="Left" Grid.Row="4" TextWrapping="Wrap" Text="Your Password:" VerticalAlignment="Top"/> 
    <Menu Grid.Row="5" HorizontalAlignment="Left" Height="25" VerticalAlignment="Top" Width="43" BorderThickness="1"> 
     <MenuItem Header=" New " RenderTransformOrigin="0.5,0.5" Width="63" Height="36" Background="White" Visibility="Visible" AllowDrop="True" IsHitTestVisible="True"> 
      <MenuItem Header=" User " Click="newUser"/> 
     </MenuItem> 
    </Menu> 
</Grid>