InlineScriptDesigner.xaml

<!-- Copyright (c) Microsoft Corporation.  All rights reserved. -->
<sap:ActivityDesigner
    x:Class="Microsoft.PowerShell.Activities.InlineScriptDesigner"
    Collapsible="True" 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"   
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"   
    xmlns:s="clr-namespace:System;assembly=mscorlib"   
    xmlns:conv="clr-namespace:System.Activities.Presentation.Converters;assembly=System.Activities.Presentation"   
    xmlns:sap="clr-namespace:System.Activities.Presentation"   
    xmlns:sapv="clr-namespace:System.Activities.Presentation.View;assembly=System.Activities.Presentation"
    mc:Ignorable="d" 
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    d:DesignHeight="128" d:DesignWidth="463">
    <sap:ActivityDesigner.Resources>
        <DataTemplate x:Key="Collapsed">
            <StackPanel>
                <TextBlock>This is the collapsed view</TextBlock>
            </StackPanel>
        </DataTemplate>
        <DataTemplate x:Key="Expanded">
          <TextBox x:Uid="TextBox_1" Text="{Binding Path=ModelItem.Command, Mode=TwoWay}" 
            TextWrapping="WrapWithOverflow"  AcceptsReturn="True" MinLines="4" 
            Background="{x:Null}" Margin="3" DockPanel.Dock="Bottom" Height="97" Width="488" />
        </DataTemplate>
        <Style x:Key="ExpandOrCollapsedStyle" TargetType="{x:Type ContentPresenter}">
            <Setter Property="ContentTemplate" Value="{DynamicResource Collapsed}"/>
            <Style.Triggers>
                <DataTrigger Binding="{Binding Path=ShowExpanded}" Value="true">
                    <Setter Property="ContentTemplate" Value="{DynamicResource Expanded}"/>
                </DataTrigger>
            </Style.Triggers>
        </Style>
    </sap:ActivityDesigner.Resources>
    <DockPanel x:Uid="DockPanel_1" LastChildFill="True">
        <ContentPresenter Style="{DynamicResource ExpandOrCollapsedStyle}" Content="{Binding}" />
    </DockPanel>
</sap:ActivityDesigner>