Question

主窗口我有以下内容

    <Window x:Uid="Window_1" x:Class="App1.MainWindow"  
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     
            Title="MainWindow" Height="350" Width="525" Loaded="Window_Loaded" Closing="Window_Closing" 
            SizeChanged="Window_SizeChanged" Topmost="True" AllowsTransparency="True"  Opacity="1"
            WindowStyle="None" ResizeMode="CanMinimize"  WindowStartupLocation="CenterScreen"   
            WindowState="Maximized" KeyDown="Window_KeyDown" MouseDoubleClick="Window_MouseDoubleClick"  Background="Black"
            MouseLeftButtonDown="Window_MouseLeftButtonDown" MouseMove="Window_MouseMove"  >

 <Viewbox x:Uid="Viewbox_1" Stretch="Uniform" StretchDirection="Both" SnapsToDevicePixels="True" >
        <Grid  x:Uid="MainLayout"   Name="MainLayout" SnapsToDevicePixels="True">
            <Canvas x:Uid="MainCanvas" Name="MainCanvas" SnapsToDevicePixels="True">

            </Canvas>
        </Grid>
    </Viewbox>

但不知何故，在窗口的NORMAL模式下出现一些填充（由于窗口背景颜色，它是黑色）

有任何线索如何把它取出来？

enter image description here

Answer 1

在根窗口上：Background="Transparent"

Answer 2

我试图复制你的问题，但没有完整的代码，似乎没有发生。我用了这段代码：

<Window x:Class="WpfApplication2.MainWindow"
        x:Uid="Window_1"
            xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"      
            Title="MainWindow" Height="350" Width="525" Topmost="True" AllowsTransparency="True"  Opacity="1" 
            WindowStyle="None" ResizeMode="CanMinimize"  WindowStartupLocation="CenterScreen"  Background="Black" >


    <Grid Background="Green">
        <Viewbox x:Uid="Viewbox_1" Stretch="Uniform" StretchDirection="Both" SnapsToDevicePixels="True" >
            <Grid Background="Red"  x:Uid="MainLayout"   Name="MainLayout" SnapsToDevicePixels="True">
                <Canvas x:Uid="MainCanvas" Name="MainCanvas" SnapsToDevicePixels="True" Background="Blue">

                </Canvas>
            </Grid>
        </Viewbox>

    </Grid>
</Window>

看看会发生什么。显然没有图像，内部画布，网格和视图框不占用任何空间，所以你得到的是一个坚固的绿色窗口（主网格中的绿色与窗口的黑色完全重叠）。

我唯一的想法是：当Viewbox使用均匀拉伸时，它是否与图像的纵横比与窗口的纵横比有关？

WPF窗口边框问题

2 个答案: