PsUi

1.0.1

resources/xaml/styles/GroupBoxStyle.xaml

                                <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <Style x:Key="ModernGroupBoxStyle" TargetType="GroupBox">

        <Setter Property="Background" Value="{DynamicResource ControlBackgroundBrush}"/>

        <Setter Property="BorderBrush" Value="{DynamicResource BorderBrush}"/>

        <Setter Property="Foreground" Value="{DynamicResource ControlForegroundBrush}"/>

        <Setter Property="BorderThickness" Value="1"/>

        <Setter Property="Padding" Value="12"/>

        <Setter Property="Margin" Value="4,4,4,8"/>

        <Setter Property="FontFamily" Value="Segoe UI"/>

        <Setter Property="FontSize" Value="12"/>

        <Setter Property="UseLayoutRounding" Value="True"/> 

        <Setter Property="Template">

            <Setter.Value>

                <ControlTemplate TargetType="GroupBox">

                    <Grid>

                        <Border x:Name="CardBorder"

                                Background="{TemplateBinding Background}"

                                BorderBrush="{TemplateBinding BorderBrush}"

                                BorderThickness="1"

                                CornerRadius="6"

                                SnapsToDevicePixels="True">

                            <Border.Effect>

                                <DropShadowEffect Color="Black" 

                                                  Direction="270" 

                                                  ShadowDepth="1" 

                                                  BlurRadius="8" 

                                                  Opacity="0.2"/>

                            </Border.Effect>

                            <Grid>

                                <Grid.RowDefinitions>

                                    <RowDefinition Height="Auto"/>

                                    <RowDefinition Height="*"/>

                                </Grid.RowDefinitions>

                                <Grid x:Name="HeaderArea" Grid.Row="0">

                                    <Border BorderBrush="{TemplateBinding BorderBrush}"

                                            BorderThickness="0,0,0,1"

                                            Background="Transparent"

                                            Opacity="0.5"/>

                                    <ContentPresenter ContentSource="Header"

                                                      RecognizesAccessKey="True"

                                                      Margin="12,6,12,6"

                                                      VerticalAlignment="Center"

                                                      TextElement.FontWeight="Bold"

                                                      TextElement.FontSize="13">

                                        <TextElement.Foreground>

                                            <DynamicResource ResourceKey="ControlForegroundBrush"/>

                                        </TextElement.Foreground>

                                    </ContentPresenter>

                                </Grid>

                                <ContentPresenter Grid.Row="1"

                                                  Margin="{TemplateBinding Padding}"

                                                  SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>

                            </Grid>

                        </Border>

                    </Grid>

                    <ControlTemplate.Triggers>

                        <Trigger Property="Header" Value="{x:Null}">

                            <Setter TargetName="HeaderArea" Property="Visibility" Value="Collapsed"/>

                        </Trigger>

                        <Trigger Property="Header" Value="">

                            <Setter TargetName="HeaderArea" Property="Visibility" Value="Collapsed"/>

                        </Trigger>

                    </ControlTemplate.Triggers>

                </ControlTemplate>

            </Setter.Value>

        </Setter>

    </Style>

</ResourceDictionary>