У меня есть собственный шаблон для расширителя, близкий к приведенному ниже коду. Мне пришлось изменить часть кода, чтобы удалить пользовательские классы, кисти и т. Д.
<Style TargetType="{x:Type Expander}">
<Setter Property="HorizontalContentAlignment"
Value="Stretch" />
<Setter Property="VerticalContentAlignment"
Value="Top" />
<Setter Property="BorderBrush"
Value="Transparent" />
<Setter Property="FontFamily"
Value="Tahoma" />
<Setter Property="FontSize"
Value="12" />
<Setter Property="Foreground"
Value="Black" />
<Setter Property="BorderThickness"
Value="1" />
<Setter Property="Margin"
Value="2,0,0,0" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Expander}">
<Border x:Name="Border"
SnapsToDevicePixels="true"
Background="White"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Margin="0,0,0,10"
Padding="0"
CornerRadius="8">
<DockPanel>
<Border x:Name="HeaderSite"
Background="Blue"
CornerRadius="8"
Height="32"
DockPanel.Dock="Top">
<DockPanel>
<ToggleButton Foreground="White"
HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
Margin="0"
MinHeight="0"
MinWidth="0"
Padding="6,2,6,2"
IsChecked="{Binding Path=IsExpanded, Mode=TwoWay, RelativeSource={RelativeSource TemplatedParent}}"
DockPanel.Dock="Left">
</ToggleButton>
<ContentPresenter SnapsToDevicePixels="True"
HorizontalAlignment="Left"
Margin="4,0,0,0"
ContentSource="Header"
VerticalAlignment="Center"
RecognizesAccessKey="True" />
</DockPanel>
</Border>
<Border x:Name="InnerBorder"
Margin="0" >
<ContentPresenter Focusable="false"
Visibility="Collapsed"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
Margin="{TemplateBinding Padding}"
x:Name="ExpandSite"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
DockPanel.Dock="Bottom" />
</Border>
</DockPanel>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsExpanded"
Value="true">
<Setter Property="Margin"
TargetName="InnerBorder"
Value="5" />
<Setter Property="Visibility"
TargetName="ExpandSite"
Value="Visible" />
</Trigger>
<Trigger Property="IsEnabled"
Value="false">
<Setter Property="Foreground"
Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Как видите, есть два ContentPresenters. Я бы хотел первым использовать Tahoma Bold вместо шрифта Tahoma по умолчанию. Как я могу это сделать?