WPFExample.ps1

Add-Type -AssemblyName PresentationFramework

[Xml]$xaml = '<?xml version="1.0" encoding="utf-8"?>
<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Height="500" Width="500">
    <DockPanel>
        <Label Content="Title" DockPanel.Dock="Top" />
        <Label Content="Copyright" Margin="5" DockPanel.Dock="Bottom" />
        <StackPanel DockPanel.Dock="Left">
            <Button Name="Button1" Margin="5,5,5,5" Content="Button1" />
            <Button Name="Button2" Margin="5,0,5,5" Content="Button2" />
        </StackPanel>
        <ComboBox Margin="5" DockPanel.Dock="Top" />
        <Grid Margin="5" DockPanel.Dock="Top">
            <Label Name="OutputText" />
            <ListView Name="OutputList" Visibility="Collapsed">
                <ListView.View>
                    <GridView />
                </ListView.View>
            </ListView>
        </Grid>
    </DockPanel>
</Window>'

$xmlNodeReader = [System.Xml.XmlNodeReader]::new($xaml)
$Window = [System.Windows.Markup.XamlReader]::Load($xmlNodeReader)

# Handler for Button1 click
$Window.FindName("Button1").Add_Click( {
    param ( $sender, $eventArgs )

    $sender.FindName("OutputList").Visibility = 'Collapsed'
    $sender.FindName("OutputText").Visibility = 'Visible'

    $sender.FindName("OutputText").Content = "Button1 was pressed"
} )
# Handler for Button2 click
$Window.FindName("Button2").Add_Click( {
    param ( $sender, $eventArgs )

    $sender.FindName("OutputText").Visibility = 'Collapsed'

    $values = Get-PSDrive

    $ListView = $sender.FindName("OutputList")
    $ListView.Visibility = 'Visible'

    foreach ($property in $values[0].PSObject.Properties) {
        $column = [System.Windows.Controls.GridViewColumn]@{
            DisplayMemberBinding = [System.Windows.Data.Binding]::new($property.Name)
            Header               = $property.Name
            Width                = [Double]::NaN
        }
        $ListView.View.Columns.Add($column)
    }

    $ListView.ItemsSource = $values
} )

# Escape closes
$Window.Add_KeyDown( {
    param ( $sender, $eventArgs )

    if ($eventArgs.Key -eq 'ESC') {
        $Window.Close()
    }
})

$Window.ShowDialog()