prs/prs.shared/Grids/EventEditor/EventEditor.xaml

<UserControl x:Class="PRS.Shared.EventEditor"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:PRS.Shared"
        xmlns:WPF="clr-namespace:InABox.WPF;assembly=InABox.Wpf"
        mc:Ignorable="d" x:Name="Editor">
    <UserControl.Resources>
        <WPF:BooleanToVisibilityConverter x:Key="boolToVisibility"/>
    </UserControl.Resources>
    <Grid Margin="0" DataContext="{Binding ElementName=Editor}"
          MinHeight="400">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*"/>
        </Grid.ColumnDefinitions>
        <DockPanel Grid.Row="0" LastChildFill="False" Margin="0,0,0,5">
            <ComboBox x:Name="EventTypeBox" DockPanel.Dock="Left" Padding="5"
                      SelectedValue="{Binding EventType}" MinWidth="50"/>

            <Label x:Name="EntityTypeLabel" DockPanel.Dock="Left" Margin="5,0,0,0"
                   Content="Entity Type:"
                   Visibility="{Binding HasType,Converter={StaticResource boolToVisibility}}"/>
            <ComboBox x:Name="EntityTypeBox" DockPanel.Dock="Left" Padding="5" Margin="5,0,0,0"
                      Visibility="{Binding HasType,Converter={StaticResource boolToVisibility}}"
                      MinWidth="100"
                      DisplayMemberPath="Name"
                      SelectedValue="{Binding EntityType}"/>
        </DockPanel>
        <ContentControl x:Name="Content" Grid.Row="1" Visibility="Collapsed"/>
        <Grid x:Name="Placeholder" Grid.Row="1">
            <Grid.RowDefinitions>
                <RowDefinition Height="Auto"/>
                <RowDefinition Height="*"/>
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="Auto"/>
                <ColumnDefinition Width="*"/>
            </Grid.ColumnDefinitions>
            <StackPanel Orientation="Horizontal"
                        Grid.Row="0" Grid.RowSpan="2" Grid.Column="1">
                <Separator Style="{StaticResource {x:Static ToolBar.SeparatorStyleKey}}"
                           Margin="3,0,3,0"/>
            </StackPanel>
            <Border BorderBrush="Gray" BorderThickness="0.75" Background="WhiteSmoke"
                    Grid.Row="0" Grid.Column="0">
                <Label Content="Triggers" VerticalAlignment="Center" HorizontalAlignment="Center"/>
            </Border>
            <Border BorderBrush="Gray" BorderThickness="0.75" Background="WhiteSmoke"
                    Grid.Row="0" Grid.Column="2">
                <Label Content="Actions" VerticalAlignment="Center" HorizontalAlignment="Center"/>
            </Border>
            <ContentControl x:Name="TriggersControl" Grid.Row="1" Grid.Column="0" Margin="0,5,0,0">
                <Border BorderBrush="Gray" BorderThickness="0.75" Background="White" />
            </ContentControl>
            <ContentControl x:Name="ActionsControl" Grid.Row="1" Grid.Column="2" Margin="0,5,0,0">
                <Border BorderBrush="Gray" BorderThickness="0.75" Background="White" />
            </ContentControl>
        </Grid>
    </Grid>
</UserControl>