Wpf DataGrid滚动条的ControlTemplate

我正在寻找一种“简单”的方法来为DataGrid滚动条创建控件模板。我的datagrid中唯一需要控件模板的部分是水平滚动条，即part_HorizontalScrollBar。是否有类似的东西可以添加到我的风格资源中

<Setter Property="Template">
<Setter.Value >
 <ControlTemplate x:Name= "PART_HorizontalScrollBar" >
 <DockPanel> etc... ...

等

---

问题是，当我添加controltemplate时，列标题消失了。如果删除controltemplate，列标题会重新出现，但水平滚动条不会出现。感谢您的建议。

覆盖

数据网格的整个模板

，并将

部分水平滚动条的
模板
属性设置为您的自定义模板：

<DataGrid ...>
    <DataGrid.Resources>
        <ControlTemplate x:Key="yourCustomTemplate" />
    </DataGrid.Resources>
    <DataGrid.Template>
        <ControlTemplate TargetType="{x:Type DataGrid}">
            <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="True">
                <ScrollViewer x:Name="DG_ScrollViewer" Focusable="false">
                    <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"/>
                                </Grid.RowDefinitions>
                                <Button Command="{x:Static DataGrid.SelectAllCommand}" Focusable="false" 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" CanContentScroll="{TemplateBinding CanContentScroll}" Grid.ColumnSpan="2" Grid.Row="1"/>
                                <ScrollBar x:Name="PART_VerticalScrollBar" Grid.Column="2" Maximum="{TemplateBinding ScrollableHeight}" Orientation="Vertical" Grid.Row="1" Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}" Value="{Binding VerticalOffset, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}" ViewportSize="{TemplateBinding ViewportHeight}"/>
                                <Grid Grid.Column="1" Grid.Row="2">
                                    <Grid.ColumnDefinitions>
                                        <ColumnDefinition Width="{Binding NonFrozenColumnsViewportHorizontalOffset, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}"/>
                                        <ColumnDefinition Width="*"/>
                                    </Grid.ColumnDefinitions>
                                    <ScrollBar x:Name="PART_HorizontalScrollBar" 
                                                       Grid.Column="1" 
                                                       Maximum="{TemplateBinding ScrollableWidth}" 
                                                       Orientation="Horizontal" 
                                                       Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}" 
                                                       Value="{Binding HorizontalOffset, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}" 
                                                       ViewportSize="{TemplateBinding ViewportWidth}"
                                                       Template="{StaticResource yourCustomTemplate}"/>
                                </Grid>
                            </Grid>
                        </ControlTemplate>
                    </ScrollViewer.Template>
                    <ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
                </ScrollViewer>
            </Border>
        </ControlTemplate>
    </DataGrid.Template>
</DataGrid>



不幸的是，您不能仅覆盖
控制模板的一部分：

覆盖
数据网格的整个模板
，并将
部分水平滚动条的
模板
属性设置为自定义模板：

<DataGrid ...>
    <DataGrid.Resources>
        <ControlTemplate x:Key="yourCustomTemplate" />
    </DataGrid.Resources>
    <DataGrid.Template>
        <ControlTemplate TargetType="{x:Type DataGrid}">
            <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" SnapsToDevicePixels="True">
                <ScrollViewer x:Name="DG_ScrollViewer" Focusable="false">
                    <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"/>
                                </Grid.RowDefinitions>
                                <Button Command="{x:Static DataGrid.SelectAllCommand}" Focusable="false" 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" CanContentScroll="{TemplateBinding CanContentScroll}" Grid.ColumnSpan="2" Grid.Row="1"/>
                                <ScrollBar x:Name="PART_VerticalScrollBar" Grid.Column="2" Maximum="{TemplateBinding ScrollableHeight}" Orientation="Vertical" Grid.Row="1" Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}" Value="{Binding VerticalOffset, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}" ViewportSize="{TemplateBinding ViewportHeight}"/>
                                <Grid Grid.Column="1" Grid.Row="2">
                                    <Grid.ColumnDefinitions>
                                        <ColumnDefinition Width="{Binding NonFrozenColumnsViewportHorizontalOffset, RelativeSource={RelativeSource AncestorType={x:Type DataGrid}}}"/>
                                        <ColumnDefinition Width="*"/>
                                    </Grid.ColumnDefinitions>
                                    <ScrollBar x:Name="PART_HorizontalScrollBar" 
                                                       Grid.Column="1" 
                                                       Maximum="{TemplateBinding ScrollableWidth}" 
                                                       Orientation="Horizontal" 
                                                       Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}" 
                                                       Value="{Binding HorizontalOffset, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}" 
                                                       ViewportSize="{TemplateBinding ViewportWidth}"
                                                       Template="{StaticResource yourCustomTemplate}"/>
                                </Grid>
                            </Grid>
                        </ControlTemplate>
                    </ScrollViewer.Template>
                    <ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
                </ScrollViewer>
            </Border>
        </ControlTemplate>
    </DataGrid.Template>
</DataGrid>



不幸的是，您不能仅覆盖
控制模板的一部分：

那么我在哪里可以找到整个默认的DataGrid模板呢？我在回答中发布了它：）我不知道So链接在哪里讨论DataGrid的控制模板。此链接显示DataGrid只有一个部分。通过在VS或Blend中的设计模式中右键单击DataGrid控件，然后选择编辑模板->编辑副本，可以将默认模板复制到XAML标记中。这就是我所做的。好的，再次感谢。那么我在哪里可以找到整个默认的DataGrid模板呢？我在回答中发布了它：）我不知道So链接在哪里讨论DataGrid的控件模板。此链接显示DataGrid只有一个部分。通过在VS或Blend中的设计模式中右键单击DataGrid控件，然后选择编辑模板->编辑副本，可以将默认模板复制到XAML标记中。我就是这么做的。好的，再次谢谢你。