MainWindow.xaml

<?xml version="1.0" encoding="utf-8"?>
<Window
    x:Class="Albacore.StartMenuCompanion.Sample.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:Albacore.StartMenuCompanion.Sample"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d" Title="Start Menu Companion (Sample)">

    <Grid Margin="6">
        <Grid.RowDefinitions>
            <RowDefinition Height="32"/>
            <RowDefinition Height="*"/>
            <RowDefinition Height="40"/>
        </Grid.RowDefinitions>
        <TextBlock Grid.Row="0" FontSize="20">Adaptive Card JSON:</TextBlock>
        <TextBox Grid.Row="1" Name="CompanionJSONContent" AcceptsReturn="True" TextWrapping="Wrap" IsSpellCheckEnabled="False" ScrollViewer.VerticalScrollBarVisibility="Auto"/>
        <StackPanel Grid.Row="2" Margin="0,6,0,0" Orientation="Horizontal">
            <Button Name="SaveButton" Content="Save" Margin="0,0,6,0" Click="SaveButton_Click"/>
            <Button Name="ReloadButton" Content="Reload" Margin="0,0,6,0" Click="ReloadButton_Click"/>
            <Button Name="OpenFolderButton" Content="Open folder" Click="OpenFolderButton_Click"/>
        </StackPanel>
    </Grid>
</Window>