Question

我有一个水平扩展的矩形，但不是垂直的：

<Grid x:Name="MainDisplay" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Column="0" Grid.Row="0">
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="*" />
        <ColumnDefinition Width="10" />
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
        <RowDefinition Height="*" />
        <RowDefinition Height="10" />
    </Grid.RowDefinitions>
    <Viewbox MinWidth="400" MinHeight="400" x:Name="Scenario4ImageContainer" Stretch="Fill" Grid.Column="0" Grid.Row="0" VerticalAlignment="Stretch">
        <Rectangle MinWidth="400" MinHeight="400" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Fill="Blue"/>
    </Viewbox>

当我将MinHeight属性设置为700时，它会占用所有屏幕空间，但我想占用它可以获得的空间。

此外部网格也位于此父网格内：

<Grid x:Name="Output" Background="#1D1D1D" Margin="0,2,0,-2" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="*"/>
        <ColumnDefinition Width="300"/>
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
        <RowDefinition Height="*" />
        <RowDefinition Height="*" />
    </Grid.RowDefinitions>

Answer 1

我已经尝试过您发布的XAML，Rectangle正在扩展。唯一限制它的是外部Grid，它定义了两行相等的高度。尝试将第二行缩小，您会看到Rectangle展开：

<Grid x:Name="Output" Background="#1D1D1D" Margin="0,2,0,-2" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="*"/>
        <ColumnDefinition Width="300"/>
    </Grid.ColumnDefinitions>
    <Grid.RowDefinitions>
        <RowDefinition Height="*" />
        <RowDefinition Height="100" />
    </Grid.RowDefinitions>
    <Grid x:Name="MainDisplay" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Column="0" Grid.Row="0">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="10" />
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
            <RowDefinition Height="10" />
        </Grid.RowDefinitions>
        <Viewbox MinWidth="400" MinHeight="400" x:Name="Scenario4ImageContainer" Stretch="Fill" Grid.Column="0" Grid.Row="0" VerticalAlignment="Stretch">
            <Rectangle MinWidth="400" MinHeight="400" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Fill="Blue"/>
        </Viewbox>
    </Grid>
</Grid>

XAML矩形不扩展

1 个答案: