About XAML
XAML is an XML document. XAML is used to describe the components or elements of a user interface. The following example describes a 350-by-350-pixel Window containing a Label:
<?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"
Width="350" Height="350">
<Label Content="Hello world" />
</Window>
The two namespace declarations in the xmlns and xmlns:x attributes are mandatory and cannot be omitted.
The document must first be read into an XmlDocument; the Xml type accelerator can be used for this. Then an XmlNodeReader is created by casting from an XmlDocument. Finally, the document is parsed using the XamlReader to create the user interface controls from the document:
$xaml = [xml]'<?xml version="1.0" encoding="utf-8"...
