Gets or sets whether a Frame isolates external Extensible Application Markup Language (XAML) content within a partial trust security sandbox (with the default Internet permission set).
Namespace:System.Windows.Controls Assembly:PresentationFramework (in PresentationFramework.dll) XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation
When SandboxExternalContent is true, and the source for the content of the Frame is an external XAML file, the content is loaded into a partial trust security sandbox that is limited to the default Internet permission set. The external content is subsequently loaded into a separate process. As a result, the external content becomes isolated and does not have access to application-scope resources, such as resource dictionaries (see ResourceDictionary).
Frame will only contain external content when the Source property is set to the uniform resource identifier (URI) for an external XAML file. Frame content that is provided using the Content property is considered internal content and, subsequently, is not isolated.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)