问Powershell无法加载Windows.Markup.XamlReader

EN

#ERASE ALL THIS AND PUT XAML BELOW between the @" "@
$inputXML = @"
<Window x:Class="WpfApplication2.MainWindow"
        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:WpfApplication2"
        mc:Ignorable="d"
        Title="FoxDeploy Awesome Tool" Height="416.794" Width="598.474" Topmost="True">
    <Grid Margin="0,0,45,0">
        <Image x:Name="image" HorizontalAlignment="Left" Height="100" Margin="24,28,0,0" VerticalAlignment="Top" Width="100" Source="C:\Users\Stephen\Dropbox\Docs\blog\foxdeploy favicon.png"/>
        <TextBlock x:Name="textBlock" HorizontalAlignment="Left" Height="100" Margin="174,28,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="282" FontSize="16"><Run Text="Use this tool to find out all sorts of useful disk information, and also to get rich input from your scripts and tools"/><InlineUIContainer>
                <TextBlock x:Name="textBlock1" TextWrapping="Wrap" Text="TextBlock"/>
            </InlineUIContainer></TextBlock>
        <Button x:Name="button" Content="get-DiskInfo" HorizontalAlignment="Left" Height="35" Margin="393,144,0,0" VerticalAlignment="Top" Width="121" FontSize="18.667"/>
        <TextBox x:Name="textBox" HorizontalAlignment="Left" Height="35" Margin="186,144,0,0" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="168" FontSize="16"/>
        <Label x:Name="label" Content="ComputerName" HorizontalAlignment="Left" Height="46" Margin="24,144,0,0" VerticalAlignment="Top" Width="138" FontSize="16"/>
        <ListView x:Name="listView" HorizontalAlignment="Left" Height="156" Margin="24,195,0,0" VerticalAlignment="Top" Width="511" FontSize="16">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="Drive Letter" DisplayMemberBinding ="{Binding 'Drive Letter'}" Width="120"/>
                    <GridViewColumn Header="Drive Label" DisplayMemberBinding ="{Binding 'Drive Label'}" Width="120"/>
                    <GridViewColumn Header="Size(MB)" DisplayMemberBinding ="{Binding Size(MB)}" Width="120"/>
                    <GridViewColumn Header="FreeSpace%" DisplayMemberBinding ="{Binding FreeSpace%}" Width="120"/>
                </GridView>
            </ListView.View>
        </ListView>

    </Grid>
</Window>

"@       

$inputXML = $inputXML -replace 'mc:Ignorable="d"','' -replace "x:N",'N'  -replace '^<Win.*', '<Window'

[void][System.Reflection.Assembly]::LoadWithPartialName('presentationframework')
[xml]$XAML = $inputXML
#Read XAML

    $reader=(New-Object System.Xml.XmlNodeReader $xaml)
  try{$Form=[Windows.Markup.XamlReader]::Load( $reader )}
catch{Write-Host "Unable to load Windows.Markup.XamlReader. Double-check syntax and ensure .net is installed."}

#===========================================================================
# Store Form Objects In PowerShell
#===========================================================================

$xaml.SelectNodes("//*[@Name]") | %{Set-Variable -Name "WPF$($_.Name)" -Value $Form.FindName($_.Name)}

Function Get-FormVariables{
if ($global:ReadmeDisplay -ne $true){Write-host "If you need to reference this display again, run Get-FormVariables" -ForegroundColor Yellow;$global:ReadmeDisplay=$true}
write-host "Found the following interactable elements from our form" -ForegroundColor Cyan
get-variable WPF*
}

Get-FormVariables

#===========================================================================
# Actually make the objects work
#===========================================================================

Function Get-DiskInfo {
param($computername =$env:COMPUTERNAME)

Get-WMIObject Win32_logicaldisk -ComputerName $computername | Select-Object @{Name='ComputerName';Ex={$computername}},`
                                                                    @{Name=‘Drive Letter‘;Expression={$_.DeviceID}},`
                                                                    @{Name=‘Drive Label’;Expression={$_.VolumeName}},`
                                                                    @{Name=‘Size(MB)’;Expression={[int]($_.Size / 1MB)}},`
                                                                    @{Name=‘FreeSpace%’;Expression={[math]::Round($_.FreeSpace / $_.Size,2)*100}}
                                                                 }

$WPFtextBox.Text = $env:COMPUTERNAME

$WPFbutton.Add_Click({
$WPFlistView.Items.Clear()
start-sleep -Milliseconds 840
Get-DiskInfo -computername $WPFtextBox.Text | % {$WPFlistView.AddChild($_)}
})
#Sample entry of how to add data to a field

#$vmpicklistView.items.Add([pscustomobject]@{'VMName'=($_).Name;Status=$_.Status;Other="Yes"})

#===========================================================================
# Shows the form
#===========================================================================
write-host "To show the form, run the following" -ForegroundColor Cyan
$Form.ShowDialog() | out-null

$xaml.SelectNodes("//*[@Name]") | %{Set-Variable -Name "WPF$($_.Name)" -Value $Form.FindName($_.Name)}

 try{$Form=[Windows.Markup.XamlReader]::Load( $reader )}
catch{Write-Host "Unable to load Windows.Markup.XamlReader. Double-check syntax and ensure .net is installed."}