wpf - 水平滚动条未出现在 DataGrid 中

Question

我的 DataGrid 出现在可视范围之外的数据。我在 StackOverflow 上研究了几个类似的问题，但似乎没有一个能解决我的问题。我无法弄清楚我做错了什么。这是我的 xaml 的样子:

<Grid>
    <Grid.RowDefinitions>
        <RowDefinition Height="50"/>
        <RowDefinition Height="*"/>
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
        <ColumnDefinition Width="*"/>
    </Grid.ColumnDefinitions>        
    <TextBlock HorizontalAlignment="Left" Foreground="{DynamicResource TitleFontColor}" 
     TextWrapping="Wrap" Text="{Binding WindowTitle}" VerticalAlignment="Center" 
     Margin="10,10,0,10" FontSize="18.667" FontFamily="Segoe UI" />
    <Border  Background="{DynamicResource pnlworkarea}" 
      Grid.Row="1" CornerRadius="2" BorderThickness="1">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="65"/>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Border BorderThickness="1" 
         Background="{DynamicResource Brush_HeaderNew}" 
         BorderBrush="{DynamicResource pnlworkareastroke}" 
         CornerRadius="2" Margin="5">
        <Grid Margin="0">
               <ListBox ItemsSource="{Binding ViewMenuItems}" SelectedItem="{Binding Viewselected}" 
                VerticalAlignment="Center" Style="{DynamicResource Content_Header_ListBoxStyle}" 
        ItemTemplate="{DynamicResource Header_DataTemplate}" 
        ItemContainerStyle="{DynamicResource ContentHeader_ListBoxItemStyle}"               
        ItemsPanel="{DynamicResource Header_ItemsPanelTemplate}" HorizontalAlignment="Left"/>                                   
    </Grid>
    </Border>
    <Grid Grid.Row="1" Margin="5">
            <StackPanel HorizontalAlignment="Left" Orientation="Horizontal" VerticalAlignment="Top" Margin="10,0,0,0">
                     <ContentControl Focusable="False" Content="ContentControl"  
        Background="{DynamicResource Brush_VectorIcon}" 
       Template="{DynamicResource vector_Summary}" 
       Height="16" Margin="0,5,0,0"/>
        <TextBlock TextWrapping="Wrap" Text="{Binding SearchDisplayMessage}" Margin="5,3,0,0" VerticalAlignment="Center"/>
            </StackPanel>
        </Grid>
        <Grid Grid.Row="2" Margin="5">
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto"/>
                <RowDefinition Height="*"/>
            </Grid.RowDefinitions>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*"/>
                </Grid.ColumnDefinitions>
                <DataGrid  x:Name="dataGrid"
                    commands:ControlEvents.GridViewSelectionChangedEventCommand="{Binding SelectionItemsChangeCommand}"
                    SelectionMode="Single"
                    AutoGenerateColumns="True"                      
                    Margin="0,5" Grid.Row="1" IsReadOnly="True"
                    ItemsSource="{Binding GridItem, Mode=TwoWay}"  SelectedItem="{Binding SelectedItem}"
                    AlternatingRowBackground="#FFF5F4F8" Background="White" Grid.ColumnSpan="2"
                    ScrollViewer.CanContentScroll="True" 
                    ScrollViewer.HorizontalScrollBarVisibility="Auto" 
                    ScrollViewer.VerticalScrollBarVisibility="Auto">
                    <i:Interaction.Behaviors>
                        <Behaviors:SelectorDoubleClickCommandBehavior Command="{Binding GridDoubleclickcommand}"/>
                    </i:Interaction.Behaviors>

                </DataGrid>
            </Grid>

        </Grid>

    </Border>

</Grid>

只是补充一点，这里的 DataGrid 并不是我正在使用的实际 DataGrid。我的自定义 DataGrid 派生自 DataGrid。但是我也用普通的 DataGrid 尝试过这个，但似乎也不起作用。

Answer 1

我遇到了类似的问题，水平滚动条没有显示。我有一列宽度为“*”。一旦我删除它，滚动条就会出现。我想如果您将宽度设置为固定值，它也会出现。