我有一个
background
颜色
#424242
用一个
ListBox
还有一些内容。。
我想要一把
#424242个
Transparent
在控件的顶部。问题是,我得到一个白色背景:
如果我换了
透明的
具有
#00000000
我有深色/黑色:
XAML代码
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="136*"/>
<RowDefinition Height="203*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<StackPanel Orientation="Vertical" Grid.Column="0" Grid.Row="0" HorizontalAlignment="Center">
<TextBlock Text="Transparent to #424242"></TextBlock>
<TextBlock Text="Transparent to #424242"></TextBlock>
<TextBlock Text="Transparent to #424242"></TextBlock>
<TextBlock Text="Transparent to #424242"></TextBlock>
<TextBlock Text="Transparent to #424242"></TextBlock>
<TextBlock Text="Transparent to #424242"></TextBlock>
<TextBlock Text="Transparent to #424242"></TextBlock>
<TextBlock Text="Transparent to #424242"></TextBlock>
<TextBlock Text="Transparent to #424242"></TextBlock>
<TextBlock Text="Transparent to #424242"></TextBlock>
<TextBlock Text="Transparent to #424242"></TextBlock>
<TextBlock Text="Transparent to #424242"></TextBlock>
<TextBlock Text="Transparent to #424242"></TextBlock>
<TextBlock Text="Transparent to #424242"></TextBlock>
<TextBlock Text="Transparent to #424242"></TextBlock>
</StackPanel>
<Rectangle Grid.Column="0" Grid.Row="0">
<Rectangle.Fill>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="Transparent" Offset="0"/>
<GradientStop Color="#424242" Offset="1"/>
</LinearGradientBrush>
</Rectangle.Fill>
</Rectangle>
<StackPanel Orientation="Vertical" Grid.Column="1" Grid.Row="0" HorizontalAlignment="Center">
<TextBlock Text="#00000000 to #424242"></TextBlock>
<TextBlock Text="#00000000 to #424242"></TextBlock>
<TextBlock Text="#00000000 to #424242"></TextBlock>
<TextBlock Text="#00000000 to #424242"></TextBlock>
<TextBlock Text="#00000000 to #424242"></TextBlock>
<TextBlock Text="#00000000 to #424242"></TextBlock>
<TextBlock Text="#00000000 to #424242"></TextBlock>
<TextBlock Text="#00000000 to #424242"></TextBlock>
<TextBlock Text="#00000000 to #424242"></TextBlock>
<TextBlock Text="#00000000 to #424242"></TextBlock>
<TextBlock Text="#00000000 to #424242"></TextBlock>
<TextBlock Text="#00000000 to #424242"></TextBlock>
<TextBlock Text="#00000000 to #424242"></TextBlock>
<TextBlock Text="#00000000 to #424242"></TextBlock>
<TextBlock Text="#00000000 to #424242"></TextBlock>
</StackPanel>
<Rectangle Grid.Column="1" Grid.Row="0">
<Rectangle.Fill>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#00000000" Offset="0"/>
<GradientStop Color="#424242" Offset="1"/>
</LinearGradientBrush>
</Rectangle.Fill>
</Rectangle>
<StackPanel Orientation="Vertical" Grid.Column="2" Grid.Row="0" HorizontalAlignment="Center">
<TextBlock Text="Hello World"></TextBlock>
<TextBlock Text="Hello World"></TextBlock>
<TextBlock Text="Hello World"></TextBlock>
<TextBlock Text="Hello World"></TextBlock>
<TextBlock Text="Hello World"></TextBlock>
<TextBlock Text="Hello World"></TextBlock>
<TextBlock Text="Hello World"></TextBlock>
<TextBlock Text="Hello World"></TextBlock>
<TextBlock Text="Hello World"></TextBlock>
<TextBlock Text="Hello World"></TextBlock>
<TextBlock Text="Hello World"></TextBlock>
<TextBlock Text="Hello World"></TextBlock>
<TextBlock Text="Hello World"></TextBlock>
<TextBlock Text="Hello World"></TextBlock>
<TextBlock Text="Hello World"></TextBlock>
</StackPanel>
<Rectangle Grid.Column="2" Grid.Row="0" Opacity="0">
<Rectangle.Fill>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#424242" Offset="0"/>
<GradientStop Color="#424242" Offset="1"/>
</LinearGradientBrush>
</Rectangle.Fill>
</Rectangle>
</Grid>
</Grid>