MainWindow.xaml

<Window
        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:HyperVPeek"
        xmlns:tk="clr-namespace:Xceed.Wpf.Toolkit;assembly=DotNetProjects.Wpf.Extended.Toolkit"
        xmlns:System="clr-namespace:System;assembly=System.Runtime"
        xmlns:b="http://schemas.microsoft.com/xaml/behaviors"
        x:Class="HyperVPeek.MainWindow"
        mc:Ignorable="d"
        Title="Hyper-V Peek" Height="450" Width="800">
  <Window.Resources>
    <local:InverseBooleanConverter x:Key="InverseBooleanConverter"/>
    <Style TargetType="{x:Type Button}" x:Key="VisibleWhenConnected">
      <Setter Property="Visibility" Value="Collapsed"/>
      <Style.Triggers>
        <DataTrigger Value="True" Binding="{Binding IsConnected}">
          <Setter Property="Visibility" Value="Visible"/>
        </DataTrigger>
      </Style.Triggers>
    </Style>
    <Style TargetType="{x:Type Button}" x:Key="VisibleWhenDisconnected">
      <Setter Property="Visibility" Value="Collapsed"/>
      <Style.Triggers>
        <DataTrigger Value="True" Binding="{Binding IsDisconnected}">
          <Setter Property="Visibility" Value="Visible"/>
        </DataTrigger>
      </Style.Triggers>
    </Style>
    <Style TargetType="{x:Type Button}" x:Key="VisibleWhenNoAutoRefresh">
      <Setter Property="Visibility" Value="Collapsed"/>
      <Style.Triggers>
        <DataTrigger Value="False" Binding="{Binding AutoRefresh}">
          <Setter Property="Visibility" Value="Visible"/>
        </DataTrigger>
      </Style.Triggers>
    </Style>
    <Style TargetType="{x:Type Button}" x:Key="VisibleWhenExceededMaxEnvelopeSize">
      <Setter Property="Visibility" Value="Collapsed"/>
      <Style.Triggers>
        <DataTrigger Value="True" Binding="{Binding ExceededMaxEnvelopeSize}">
          <Setter Property="Visibility" Value="Visible"/>
        </DataTrigger>
      </Style.Triggers>
    </Style>
  </Window.Resources>
  <Window.DataContext>
    <local:MainWindowViewModel/>
  </Window.DataContext>
  <b:Interaction.Triggers>
    <b:EventTrigger EventName="Loaded">
      <b:InvokeCommandAction Command="{Binding LoadSettingsCommand}"/>
    </b:EventTrigger>
    <b:EventTrigger EventName="Closed">
      <b:InvokeCommandAction Command="{Binding SaveSettingsCommand}"/>
    </b:EventTrigger>
  </b:Interaction.Triggers>
  <DockPanel>
    <StackPanel Orientation="Vertical" DockPanel.Dock="Top">
      <StackPanel Orientation="Horizontal" Margin="0, 3, 0, 3">
        <StackPanel Orientation="Horizontal" IsEnabled="{Binding IsConnected, Converter={StaticResource InverseBooleanConverter}}">
          <tk:WatermarkTextBox Margin="3,3,3,3" TextWrapping="NoWrap" Width="120" Watermark="Domain Name" Text="{Binding TargetDomain}"/>
          <tk:WatermarkTextBox Margin="3,3,3,3" TextWrapping="NoWrap" Width="120" Watermark="Hyper-V Hostname" Text="{Binding TargetHostname}"/>
          <tk:WatermarkTextBox Margin="3,3,3,3" TextWrapping="NoWrap" Width="120" Watermark="Username" Text="{Binding Username}"/>
          <tk:WatermarkPasswordBox x:Name="PasswordTextBox" Margin="3,3,3,3" TextWrapping="NoWrap" Width="120" Watermark="Password"/>
        </StackPanel>
        <Button Content="Connect" Margin="3,3,3,3" Width="80" Style="{Binding Mode=OneWay, Source={StaticResource VisibleWhenDisconnected}}">
          <b:Interaction.Triggers>
            <b:EventTrigger EventName="Click">
              <b:InvokeCommandAction Command="{Binding ConnectCommand}" CommandParameter="{Binding ElementName=PasswordTextBox}"/>
              <b:InvokeCommandAction Command="{Binding UpdateVirtualMachineListCommand}" />
            </b:EventTrigger>
          </b:Interaction.Triggers>
        </Button>
        <Button Content="Disconnect" Margin="3,3,3,3" Width="80" Style="{Binding Mode=OneWay, Source={StaticResource VisibleWhenConnected}}" Command="{Binding DisconnectCommand, Mode=OneWay}" />
        <Button Content="Refresh" Margin="3,3,3,3" Width="80" Style="{Binding Mode=OneWay, Source={StaticResource VisibleWhenNoAutoRefresh}}" Command="{Binding RefreshVirtualMachineImageCommand, Mode=OneWay}"/>
      </StackPanel>
    </StackPanel>
    <StackPanel DockPanel.Dock="Bottom" Orientation="Horizontal">
      <Label Content="{Binding Status}"></Label>
      <Button Content="Try Making it 2MB" Margin="3,3,3,3" Width="80" Style="{Binding Mode=OneWay, Source={StaticResource VisibleWhenExceededMaxEnvelopeSize}}" Command="{Binding SetMaxEnvelopeSizeCommand, Mode=OneWay}">
        <Button.CommandParameter>
          <System:Int32>2048</System:Int32>
        </Button.CommandParameter>
      </Button>
    </StackPanel>
    <DockPanel>
      <Grid Width="100" IsEnabled="{Binding IsConnected}">
        <Grid.RowDefinitions>
          <RowDefinition Height="Auto" />
          <RowDefinition Height="*" />
          <RowDefinition Height="Auto" />
        </Grid.RowDefinitions>
        <Label Content="VMs"></Label>
        <ListBox Margin="3,3,3,3" Grid.Row="1" ItemsSource="{Binding VirtualMachines}" SelectedValue="{Binding SelectedVirtualMachine}"/>
        <CheckBox Content="Auto-Refresh" Grid.Row="2" IsChecked="{Binding AutoRefresh}"></CheckBox>
      </Grid>
      <StackPanel DockPanel.Dock="Right" x:Name="VmImagePanel" Margin="3,3,3,3" SizeChanged="VmImagePanel_SizeChanged">
        <Image x:Name="VmImage" Stretch="Fill" Source="{Binding LastVirtualMachineImage}" />
      </StackPanel>
    </DockPanel>
  </DockPanel>
</Window>