The XDL Diffgram format
Despite its similar name and appearance,
this XML format is not directly related to the Diffgram format used
in ADO.NET. The XDL Diffgram contains a list of the changes made to
the original document. The root element of the XDL Diffgram,
xd:xmldiff, has a namespace of
Its attributes are listed below:
Indicates the version of the XDL Diffgram format being used.
Provides a hashed value which is used to verify that the XML document the Diffgram is being used to patch is the same as the original XML document used to generate the Diffgram.
Contains the names of the
XmlDiffOptionspassed into the
XmlDiffconstructor, if any. The names are separated by spaces.
If the value is
yes, the Diffgram contains differences between XML nodes. If the value is
no, the Diffgram contains differences between XML documents.
Indicates the XML namespace URI for the
element may have any number of
xd:node element represents a node in
the original document that has changed in the changed document, or
the position of a new or deleted node in the changed document. The
match attribute contains a path descriptor for the
Although they look similar, the XDL path syntax is not XPath. XDL paths are based on the original XML document after it has been loaded into a DOM tree. An XDL path consists of a combination ...