我在使弹出通知面板仅占用其内部控件所需的空间时遇到问题。
我有什么:
<Grid>
<DockPanel Panel.ZIndex="1111" Grid.Column="0" Grid.Row="0" HorizontalAlignment="Stretch" Visibility="{Binding MessageVisibility}">
<Button Visibility="Collapsed" Name="clickButton" Command="{Binding Path=CloseMessage}"/>
<Border Background="LightGray" CornerRadius="20" MouseDown="Border_MouseDown" BorderThickness="8" BorderBrush="CadetBlue">
<Grid VerticalAlignment="Center" HorizontalAlignment="Center" Margin="20px">
<ItemsControl Grid.Column="0" Grid.Row="0" ItemsSource="{Binding Messages}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<TextBlock TextBlock.TextAlignment="Center" Text="{Binding FallbackValue='Message'}"/>
</DataTemplate>
</ItemsControl.ItemTemplate>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
</Grid>
</Border>
</DockPanel>
<DockPanel Panel.ZIndex="0">
...
</DockPanel>
</Grid>
我试图让第一个 DockPanel 只占用 ItemsControl 所需的空间。它似乎占据了整个空间。设置宽度/高度将使其保持在中心,但不会让它增长。