如何在 WPF 数据网格中添加页脚行？我必须在 WPF 数据网格中为每列的总和添加一行，我不想使用任何 dll 或 telerik 以及类似的东西，仅使用 Microsoft 组件来执行此操作。我正在尝试这样做：
<Style TargetType="{x:Type DataGrid}">
<Setter Property="Foreground"
Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" />
<Setter Property="BorderBrush">
<Setter.Value>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="{DynamicResource BorderLightColor}" Offset="0" />
<GradientStop Color="{DynamicResource BorderDarkColor}" Offset="1" />
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="BorderThickness" Value="1" />
<Setter Property="RowDetailsVisibilityMode" Value="VisibleWhenSelected" />
<Setter Property="ScrollViewer.CanContentScroll" Value="true" />
<Setter Property="ScrollViewer.PanningMode" Value="Both" />
<Setter Property="Stylus.IsFlicksEnabled" Value="False" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type DataGrid}">
<Border x:Name="border"
SnapsToDevicePixels="True"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Padding="{TemplateBinding Padding}">
<Border.Background>
<SolidColorBrush Color="{DynamicResource ControlLightColor}" />
</Border.Background>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Disabled">
<Storyboard>
<ColorAnimationUsingKeyFrames Storyboard.TargetName="border"
Storyboard.TargetProperty="(Panel.Background).(SolidColorBrush.Color)">
<EasingColorKeyFrame KeyTime="0" Value="{DynamicResource ControlLightColor}" />
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Normal" />
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<ScrollViewer x:Name="DG_ScrollViewer" Focusable="false" Background="Black">
<ScrollViewer.Template>
<ControlTemplate TargetType="{x:Type ScrollViewer}">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Button Focusable="false"
Command="{x:Static DataGrid.SelectAllCommand}"
Style="{DynamicResource {ComponentResourceKey
ResourceId=DataGridSelectAllButtonStyle,
TypeInTargetAssembly={x:Type DataGrid}}}"
Visibility="{Binding HeadersVisibility,
ConverterParameter={x:Static DataGridHeadersVisibility.All},
Converter={x:Static DataGrid.HeadersVisibilityConverter},
RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}"
Width="{Binding CellsPanelHorizontalOffset,
RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}" />
<DataGridColumnHeadersPresenter x:Name="PART_ColumnHeadersPresenter"
Grid.Column="1"
Visibility="{Binding HeadersVisibility,
ConverterParameter={x:Static DataGridHeadersVisibility.Column},
Converter={x:Static DataGrid.HeadersVisibilityConverter},
RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}" />
<ScrollContentPresenter x:Name="PART_ScrollContentPresenter"
Grid.ColumnSpan="2"
Grid.Row="1"
CanContentScroll="{TemplateBinding CanContentScroll}" />
<ScrollBar x:Name="PART_VerticalScrollBar"
Grid.Column="2"
Grid.Row="1"
Orientation="Vertical"
ViewportSize="{TemplateBinding ViewportHeight}"
Maximum="{TemplateBinding ScrollableHeight}"
Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"
Value="{Binding VerticalOffset, Mode=OneWay,
RelativeSource={RelativeSource TemplatedParent}}"/>
<TextBlock Grid.Row="2" Grid.Column="1" Text="This is footer!"/>
<Grid Grid.Column="1" Grid.Row="3">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="{Binding NonFrozenColumnsViewportHorizontalOffset,
RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<ScrollBar x:Name="PART_HorizontalScrollBar"
Grid.Column="1"
Orientation="Horizontal"
ViewportSize="{TemplateBinding ViewportWidth}"
Maximum="{TemplateBinding ScrollableWidth}"
Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"
Value="{Binding HorizontalOffset, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}"/>
</Grid>
</Grid>
</ControlTemplate>
</ScrollViewer.Template>
<ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
</ScrollViewer>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsGrouping" Value="true">
<Setter Property="ScrollViewer.CanContentScroll" Value="false" />
</Trigger>
</Style.Triggers>
</Style>
我还尝试添加网格而不是文本块，但是在调整数据网格列大小时，它们无法调整大小并且看起来非常难看。
尝试这个。
<ScrollViewer VerticalAlignment="Top" HorizontalScrollBarVisibility="Auto">
<StackPanel>
<DataGrid ScrollViewer.HorizontalScrollBarVisibility="Disabled">
<DataGrid.Columns>
<DataGridTextColumn x:Name="Header1" Header="Header1"></DataGridTextColumn>
<DataGridTextColumn x:Name="Header2" Header="Header2"></DataGridTextColumn>
<DataGridTextColumn x:Name="Header3" Header="Header3"></DataGridTextColumn>
</DataGrid.Columns>
<TextBlock></TextBlock>
<TextBlock></TextBlock>
</DataGrid>
<StackPanel HorizontalAlignment="Left" Orientation="Horizontal">
<Grid Width="{Binding ElementName=Header1,Path=ActualWidth}">
<TextBlock Margin="5,0,0,0" Text="Footer1"></TextBlock>
</Grid>
<Grid Width="{Binding ElementName=Header2,Path=ActualWidth}">
<TextBlock Text="Footer2" Margin="5,0,0,0"></TextBlock>
</Grid>
<Grid Width="{Binding ElementName=Header3,Path=ActualWidth}">
<TextBlock Text="Footer3" Margin="5,0,0,0"></TextBlock>
</Grid>
</StackPanel>
</StackPanel>
</ScrollViewer>
Result
