XAML Full Form- Extensible Application Markup Language

What is XAML? The full form of XAML is Extensible Application Markup Language. Microsoft created XAML, a declarative XML-based language for initializing objects and structured information. Under Microsoft's Open Specification Promise, it is accessible.

Windows UI Library (WinUI), Workflow Foundation (WF), Windows Presentation Foundation (WPF), Universal Windows Platform (UWP), Silverlight, and.NET Multi-platform App UI (.NET MAUI) all make considerable use of XAML. XAML is a user interface markup language used in WPF and UWP to provide events, data binding, and UI components. Workflows are, however, defined using XAML in WF.

Declarative markup is common in many markup languages, including HTML, MXML, XAML, XSLT, and other user-interface markup languages. For example, HTML does not specify the control flow for producing a website or the possible interactions a user may have with it; it merely specifies what should show on a webpage.

While XAML features map to CLR properties and events on those objects, XAML elements map directly to instances of Common Language Runtime (CLR) objects.

Any XAML creation or implementation may be stated using a more conventional.NET language, such as Visual Basic.NET or C#. But because the technology is built on XML, one important feature is the decreased complexity required for tools to handle XAML.

Key Facts about XAML 

The XAML Technology

Extensible Avalon Markup Language (XAML) was once known as Avalon, which was the code name for Windows Presentation Foundation (WPF). However, Microsoft accepted XAML for Workflow Foundation (WF) prior to the conclusion of.NET Framework 3.0 development.

Visual user interfaces are described in WPF using XAML. WPF enables the development of several effects and features, including rotations, animations, and both 2D and 3D object definitions. A Binary Application Markup Language (BAML) file created from an XAML file can be added as a resource to a.NET Framework assembly. The framework engine parses the BAML file and generates a matching WPF visual tree or workflow at run-time by extracting it from assembly resources.

XAML describes declarative logic that may operate for a long time in WF settings, such as those produced by rule systems and process modeling tools. Workflow serialization formats were once referred to as XOML to distinguish them from XAML-based UI markup, but this distinction is no longer used. Nonetheless, files with workflow markup still have the ".xoml" file extension.

XAML employs a unique vocabulary for defining look and feel called templates; this syntax is more akin to XBL than Cascading Style Sheet syntax.

XAMLPad, Microsoft Visual Studio, Microsoft Expression Blend, and the hostable WF visual designer may all be used to produce XAML files.

XAML Versions

Three primary Microsoft XAML implementations exist:

Windows UI Library (previously UWP XAML and WinRT XAML), which was initially included with Windows 8 and Windows Server 2012 but is now available as a part of the Windows App SDK, Windows Presentation Foundation (WPF), which was first available with.NET Framework 3.0 Silverlight 3 and 4, and first available for Internet Explorer 6.

There are minor variations in the parsing behavior between these versions. Furthermore, there is a partial backward incompatibility between Silverlight 3 files and the Silverlight 4 XAML parser. The Silverlight 4 parser may reject or interpret XAML files from Silverlight 3 in a different way.

Competition from HTML

A group of primarily American software businesses, known as the European Committee for Interoperable Systems (ECIS), charged Microsoft in 2007 of trying to steal HTML and replace it with XAML in order to create vendor lock-in. This claim was called "the most egregious error" by Ars Technica's Jeremy Reimer, who also noted that XAML is unlikely to ever replace HTML.