Difference (XmlNodelist function)

From m204wiki
Revision as of 21:41, 31 May 2011 by JAL2 (talk | contribs)
Jump to navigation Jump to search

Difference between XmlNodelists (XmlNodelist class)

Difference creates an XmlNodelist that is the difference of (that is, it removes nodes from) one XmlNodelist and another.

Syntax

%diffNodl = nodl:Difference( removeNodl)

Syntax terms

%diffNodl An XmlNodelist that is set to point to the nodelist that is created.
nodl An XmlNodelist.
removeNodl An XmlNodelist; nodes on this nodelist are removed from nodl to create the result.

Usage notes

  • Difference only affects the nodes created on %diffNodl; it does not modify the XmlDoc, nodl, nor removeNodl.
  • The XmlDoc associated with nodl and removeNodl must be the same.

Examples

  1. The following example will create an empty XmlNodelist:

    %empty = %nlis:Difference(%nlis)

  2. Another example that makes use of the Difference method is in the "Examples" section in SelectNodes

Request-cancellation errors

  • The XmlDocs associated with nodl and removeNodl are not the same.
  • Insufficient free space exists in CCATEMP.

See also