---
title: "Markup Compatibility (mc:) Language Features"
ms.date: "03/30/2017"
f1_keywords: 
  - "AutoGeneratedOrientationPage"
helpviewer_keywords: 
  - "XML [WPF], namespaces"
  - "XAML [WPF], namespaces"
  - "markup compatibility [WPF]"
  - "XML [WPF], mc namespace prefix"
  - "XAML Namespace [WPF]"
  - "namespaces [WPF], XML"
ms.assetid: 67992d76-8bcc-456c-8232-03807803d69e
---
# Markup Compatibility (mc:) Language Features
## In This Section  
 [mc:Ignorable Attribute](mc-ignorable-attribute.md)  
  [mc:ProcessContent Attribute](mc-processcontent-attribute.md)