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J'ai un DataGrid avec des données hiérarchiques. Chaque fois que je réduis mes détails de ligne, la ligne parent ne se redimensionne pas automatiquement. Cela signifie que lorsque je continue d'étendre mes détails de ligne, la grille des parents continue de prendre de plus en plus d'espace jusqu'à ce que je plante une rangée au même niveau. J'ai snoopé l'application et découvert que l'élément de plus bas niveau qui garde la nouvelle hauteur est le DataGridRowsPresenter qui est le PART_ColumnHeadersPresenter.WPF DataGrid La ligne ne règle pas la hauteur après l'expansion Détails de la ligne
J'ai mon propre ControlTemplate pour la ligne et la grille:
<Style x:Key="{x:Type Custom:DataGrid}" TargetType="{x:Type Custom:DataGrid}">
<Setter Property="CanUserResizeRows" Value="False" />
<Setter Property="Background"
Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
<Setter Property="Foreground"
Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="BorderBrush" Value="#FF688CAF" />
<Setter Property="BorderThickness" Value="1" />
<!-- This is needed to force DG to have a non-default value. Otherwise the DGR.DetailsVisibility cannot have a value of VisibleWhenSelected by default. -->
<Setter Property="RowDetailsVisibilityMode" Value="VisibleWhenSelected" />
<Setter Property="ScrollViewer.CanContentScroll"
Value="true"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Custom:DataGrid}">
<Border Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
SnapsToDevicePixels="True"
Padding="{TemplateBinding Padding}">
<ScrollViewer Focusable="false"
Name="DG_ScrollViewer">
<ScrollViewer.Template>
<ControlTemplate TargetType="{x:Type ScrollViewer}">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<!--Left Column Header Corner -->
<Button Command="{x:Static Custom:DataGrid.SelectAllCommand}"
Width="{Binding RelativeSource={RelativeSource AncestorType={x:Type Custom:DataGrid}}, Path=CellsPanelHorizontalOffset}"
Template="{StaticResource SelectAllButtonTemplate}"
Focusable="false"
Visibility="{Binding RelativeSource={RelativeSource AncestorType={x:Type Custom:DataGrid}}, Path=HeadersVisibility, Converter={x:Static Custom:DataGrid.HeadersVisibilityConverter}, ConverterParameter={x:Static Custom:DataGridHeadersVisibility.All}}" />
<!--Column Headers-->
<Custom:DataGridColumnHeadersPresenter Grid.Column="1"
Name="PART_ColumnHeadersPresenter"
Visibility="{Binding RelativeSource={RelativeSource AncestorType={x:Type Custom:DataGrid}}, Path=HeadersVisibility, Converter={x:Static Custom:DataGrid.HeadersVisibilityConverter}, ConverterParameter={x:Static Custom:DataGridHeadersVisibility.Column}}"/>
<!--DataGrid content-->
<ScrollContentPresenter x:Name="PART_ScrollContentPresenter"
Grid.Row="1"
Grid.ColumnSpan="2"
CanContentScroll="{TemplateBinding CanContentScroll}"
Height="Auto" VerticalAlignment="Stretch">
</ScrollContentPresenter>
<ScrollBar Grid.Row="1" Grid.Column="2" Name="PART_VerticalScrollBar"
Orientation="Vertical"
Maximum="{TemplateBinding ScrollableHeight}"
ViewportSize="{TemplateBinding ViewportHeight}"
Value="{Binding Path=VerticalOffset, RelativeSource={RelativeSource TemplatedParent}, Mode=OneWay}"
Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"/>
<Grid Grid.Row="2" Grid.Column="1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="{Binding RelativeSource={RelativeSource AncestorType={x:Type Custom:DataGrid}}, Path=NonFrozenColumnsViewportHorizontalOffset}"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<ScrollBar Grid.Column="1"
Name="PART_HorizontalScrollBar"
Orientation="Horizontal"
Maximum="{TemplateBinding ScrollableWidth}"
ViewportSize="{TemplateBinding ViewportWidth}"
Value="{Binding Path=HorizontalOffset, RelativeSource={RelativeSource TemplatedParent}, Mode=OneWay}"
Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"/>
</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>
<ControlTemplate x:Key="PlainDataGridRowControlTemplate" TargetType="{x:Type Custom:DataGridRow}">
<Grid x:Name="LayoutRoot">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid x:Name="DGR_Border"
Background="Transparent"
SnapsToDevicePixels="True">
<Custom:SelectiveScrollingGrid Name="DGR_SelectiveScrollingGrid">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Custom:DataGridCellsPresenter Grid.Column="1" Name="DGR_CellsPresenter" ItemsPanel="{TemplateBinding ItemsPanel}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
<Custom:DataGridDetailsPresenter Height="Auto"
Grid.Column="1"
Grid.Row="1"
Visibility="{TemplateBinding DetailsVisibility}" Custom:SelectiveScrollingGrid.SelectiveScrollingOrientation="{Binding RelativeSource={RelativeSource AncestorType={x:Type Custom:DataGrid}}, Path=AreRowDetailsFrozen, Converter={x:Static Custom:DataGrid.RowDetailsScrollingConverter}, ConverterParameter={x:Static Custom:SelectiveScrollingOrientation.Vertical}}" />
<!--<localprimitives:DataGridRowHeader localprimitives:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical" Visibility="{Binding RelativeSource={RelativeSource AncestorType={x:Type local:DataGrid}}, Path=HeadersVisibility, Converter={x:Static local:DataGrid.HeadersVisibilityConverter}, ConverterParameter={x:Static local:DataGridHeadersVisibility.Row}}"/>-->
<Custom:DataGridRowHeader Grid.RowSpan="2" Custom:SelectiveScrollingGrid.SelectiveScrollingOrientation="Vertical" />
</Custom:SelectiveScrollingGrid>
</Grid>
</Grid>
</ControlTemplate>
<Style TargetType="Custom:DataGridRow">
<Setter Property="Margin" Value="0, 0, 0, 0"/>
<Setter Property="Template" Value="{StaticResource PlainDataGridRowControlTemplate}" />
</Style>
Quelqu'un peut-il s'il vous plaît conseiller?