Error when try to run WPF Dialog

PowerShell Tools
1

Hello together I have an Issue with the WPF on VSCode

When I use the Following PS Code:

[System.Reflection.Assembly]::LoadWithPartialName("PresentationFramework") | Out-Null
function Import-Xaml {
	[xml]$xaml = Get-Content -Path $PSScriptRoot\window.xaml
	$manager = New-Object System.Xml.XmlNamespaceManager -ArgumentList $xaml.NameTable
	$manager.AddNamespace("x", "http://schemas.microsoft.com/winfx/2006/xaml");
	$xamlReader = New-Object System.Xml.XmlNodeReader $xaml
	[Windows.Markup.XamlReader]::Load($xamlReader)
}
$Window = Import-Xaml 
$window.ShowDialog()

I get the Following Error Message on the Console:

Exception calling "Load" with "1" argument(s): "Cannot set unknown member '{http://schemas.openxmlformats.org/markup-compatibility/2006}Ignorable'."
At H:\Powershell\Flow Rechner\Flow Calculator.ps1:10 char:2
+     [Windows.Markup.XamlReader]::Load($xamlReader)
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : XamlParseException

You cannot call a method on a null-valued expression.
At H:\Powershell\Flow Rechner\Flow Calculator.ps1:13 char:1
+ $window.ShowDialog()
+ ~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException     
    + FullyQualifiedErrorId : InvokeMethodOnNull

My XAML-File is an Basic one:

<Window x:Name="wpfWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        Background="White"
        Title="WPF Window"
        mc:Ignorable="d">
  <Grid>
    <Grid Width="630"
          Height="448"
          Margin="0,0,0,0"
          HorizontalAlignment="Left"
          VerticalAlignment="Top"
          Grid.Column="0"
          Grid.Row="0">
      <Label x:Name="lb_Test"
             Content="Test123"
             Width="128"
             Height="46"
             Margin="41,55,0,0"
             HorizontalAlignment="Left"
             VerticalAlignment="Top"
             RenderTransformOrigin="0.5154,0.5167"
             Grid.Column="0"
             Grid.Row="0" />
      <Button x:Name="bt_Beenden"
              Content="Beenden"
              Width="75"
              Height="23"
              Margin="277.5,65.5,0,0"
              HorizontalAlignment="Left"
              VerticalAlignment="Top"
              Click="bt_beenden_click"
              Grid.Column="0"
              Grid.Row="0" />
    </Grid>
  </Grid>
</Window>

I’m using:
VSCode → 1.59.1
PowerShell Pro Tools → 5.28.1

Maybe this is an Issue on the Version of PowerShell Pro Tools

2

Try removing this from the XAML file.

mc:Ignorable="d"

I’ve noticed this before as well. I’ll open an issue for it.

3

Thank you for the Information.
Looking forward for this fix!

Best Regards
Stefan