我在主窗口中有如下代码(缩写):
尽管我已经设置了滚动条的可见性和CanContentScroll
属性,但它仍然无法滚动。我猜测这与我的用户控件有关。
<Window>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<TabControl Grid.Column="0" Grid.Row="0" HorizontalAlignment="Stretch" Margin="0" VerticalAlignment="Stretch" Height="Auto" Width="Auto">
<TabItem Header="TEST">
<ScrollViewer HorizontalScrollBarVisibility="Visible" VerticalScrollBarVisibility="Visible" HorizontalContentAlignment="Stretch" VerticalContentAlignment="Stretch">
<my:MY_USER_CONTROL x:Name="myUserControl" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" ScrollViewer.CanContentScroll="True" />
</ScrollViewer>
</TabItem>
</TabControl>
<Button Grid.Column="0" Grid.Row="2" >a button</Button>
<WrapPanel Grid.Column="0" Grid.Row="3" >
</WrapPanel>
</Grid>
</Window>
我的用户控件的简化结构:
<UserControl>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="183*" />
<ColumnDefinition Width="117*" />
</Grid.ColumnDefinitions>
<TreeView ItemsSource="{Binding Children}" Grid.ColumnSpan="2">
<TreeView.ItemContainerStyle>
<Style TargetType="{x:Type TreeViewItem}">
<Setter Property="IsExpanded" Value="{Binding IsExpanded, Mode=TwoWay}" />
<Setter Property="IsSelected" Value="{Binding IsSelected, Mode=TwoWay}" />
<Setter Property="FontWeight" Value="Normal" />
<Style.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter Property="FontWeight" Value="Bold" />
</Trigger>
</Style.Triggers>
</Style>
</TreeView.ItemContainerStyle>
<TreeView.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Children}" >
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition></RowDefinition>
</Grid.RowDefinitions>
<Grid.Children>
<TextBlock Background="LightGray" Padding="2" Margin="2" Grid.Row="0" Grid.Column="0" Text="{Binding Name}" />
<TextBlock Padding="2" Margin="2" Grid.Row="0" Grid.Column="1" Text="{Binding Content}" />
</Grid.Children>
</Grid>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
</TreeView>
</Grid>
</UserControl>
ScrollViewer
设置Height
时才有效。但是设置ScrollViewer
的高度不是我想要的。 - OnurScrollViewer
在TabItem
内部,它也可以正常工作,就像我的原始版本一样。唯一的问题是不允许ScrollViewer
使用尽可能多的空间(就像将高度设置为自动时的情况)。 - Onur