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).
Assembly: PresentationFramework (in PresentationFramework.dll)
is set when an application is executing in partial trust.
External content is XAML content that is not included with an application as either a resource file or a content file (see WPF Application Resource, Content, and Data Files).
When 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).is true, and the source for the content of the
Metadata properties set to true
Available since 3.0