我的WPF应用程序中有一个数据网格。我一直在尝试向datagridrowheader添加一个切换按钮，这已经做到了。我遇到的问题是尝试设置datagridrowheader的样式。如果我省略该行-RowHeaderStyle =“ {StaticResource DG_RowHeader}”，则我的按钮将正确加载。当我将这条线添加回去时，我的按钮没有出现，为什么？
据我所知，DG_RowHeader只是在设置行标题的样式？我想知道如何将这种样式应用于datagridrowheader并同时显示切换按钮？
我的数据网格
<DataGrid DataContext="{Binding OrderBlock}"
x:Name="dataGridOrders"
ItemsSource="{Binding Orders}"
Style="{StaticResource DataGridTemplate}"
ColumnHeaderStyle="{StaticResource DG_ColumnHeader}"
RowStyle="{StaticResource DG_Row}"
CellStyle="{StaticResource DG_Cell}"
RowHeaderStyle="{StaticResource DG_RowHeader}"
RowDetailsTemplate="{StaticResource DG_RowDetail}"
AutoGenerateColumns="False"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
Background="Silver"
RowHeaderWidth="30"
Margin="25,5,20,15"
RowDetailsVisibilityChanged="dataGridOrders_RowDetailsVisibilityChanged">
<DataGrid.RowHeaderTemplate>
<DataTemplate>
<ToggleButton x:Name="RowHeaderToggleButton"
Click="RowHeaderToggleButton_Click"
Cursor="Hand"/>
</DataTemplate>
</DataGrid.RowHeaderTemplate>
我的DataGridRowHeader
<!-- Data Grid row with toggle button -->
<Style x:Key="DG_RowHeader" TargetType="{x:Type DataGridRowHeader}">
<Setter Property="Width" Value="35"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type DataGridRowHeader}">
<Border x:Name="DGRH_Border"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
SnapsToDevicePixels="True">
<Border.Background>
<LinearGradientBrush StartPoint="0,0" EndPoint="1,1">
<GradientStop Offset="0" Color="LightGray"/>
<GradientStop Offset="1" Color="WhiteSmoke"/>
</LinearGradientBrush>
</Border.Background>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
我的切换按钮
<!-- Toogle Button -->
<Style TargetType="ToggleButton" x:Name="rowdetailToggleButton">
<Setter Property="Padding" Value="0" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ToggleButton">
<Grid>
<Path x:Name="DefaultPath"
VerticalAlignment="Top"
Data="M0,0 14,7 0,14 Z"
Fill="DarkGray"
Stretch="Fill"
Margin="6"/>
<Path x:Name="CheckedPath"
VerticalAlignment="Top"
Data="M0,0 14,0 7,14 Z"
Fill="DarkGray"
Stretch="Fill"
Margin="6"
Visibility="Collapsed" />
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CheckStates">
<VisualState x:Name="Checked">
<Storyboard>
<ObjectAnimationUsingKeyFrames Duration="0"
Storyboard.TargetName="DefaultPath"
Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Collapsed</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Duration="0"
Storyboard.TargetName="CheckedPath"
Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetName="CheckedPath" Storyboard.TargetProperty="(Path.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="0:0:0.2" Value="LightGray" />
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Unchecked" />
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
它看起来像你忘了要显示的内容DataGridRowHeader的DG_RowHeader风格，更精确地里DGRH_Border。
您可以在其中添加ContentPresenter：
<Border x:Name="DGRH_Border"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
SnapsToDevicePixels="True">
[...]
<ContentPresenter Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"/>
</Border>
至于ToggleButtons，您需要：
在ToggleButton的声明中指定样式：
（假设您的样式是使用x:Key属性定义的（x:Name而是您指定的））：
<Style TargetType="ToggleButton" x:Key="rowdetailToggleButton">
通过删除x:Key属性，将样式设置为切换按钮的默认样式：
无论哪种方式，您都需要确保资源的字典在声明按钮的位置可用。
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