#85 – Two Main Namespaces Used in Every WPF XAML File

You’ll find the same two namespaces listed at the top of every .xaml file in a WPF project:


These namespaces correspond to two XAML vocabularies that define elements allowed in a WPF-based XAML file.

Although a URI is used to specify each namespace, they do not correspond to an actual web site.  The URI format is used to help ensure uniqueness across all organizations.

More information on these two namespaces :