XDocumentType::SystemId Property
Gets or sets the system identifier for this Document Type Definition (DTD).
Assembly: System.Xml.Linq (in System.Xml.Linq.dll)
If an XML document uses an external private DTD, this property will contain the private identifier of the external DTD.
The following example creates an XML document that refers to an external private DTD. The DTD does not have an internal subset. The call to the XDocumentType constructor reflects the use of the external private DTD. It passes null for the internal subset.
This example produces the following output:
SystemId:Pubs.dtd
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1