The <navref> element represents a pointer to another map which should be preserved as a transcluding link rather than resolved. Output formats that support such linking will integrate the referenced resource when displaying the referencing map to an end user.

For example, if a map is converted to the Eclipse help system format, the DITA element <navref mapref="other.ditamap"/> should be converted to the Eclipse element <link toc="other.xml"/>. When Eclipse loads the referencing map, it will replace this link element with the contents of the file "other.xml", provided that the file "other.xml" is available.

Note that not all output formats support such linking. In order to include another map directly without depending on the output format, use a <topicref> element with the format attribute set to "ditamap". The effect is similar to a conref. For example, the following markup represents a literal inclusion of the map "other.ditamap":

<topicref href="other.ditamap" format="ditamap"/>



These models represent only the default document types distributed by OASIS. Actual content models will differ with each new document type.
Doctype Content model
map, bookmap, classifyMap, subjectScheme, learningBookmap, learningMap no content

Contained by

Doctype Content model
map (base), map (technical content), bookmap, classifyMap, learningBookmap, learningMap map, topicref, topichead, topicgroup, topicset, keydef
subjectScheme map, topicref, subjectScheme, topichead, topicgroup, topicset, keydef


- map/navref


In this example, the map titled "MyComponent tasks" references the maps "othermap2.ditamap" and "othermap3.ditamap".

<map title="MyComponent tasks">
 <navref mapref="../"/>
 <navref mapref="../"/>


Name Description Data Type Default Value Required?
mapref Specifies the URL (local filename, at least) of the map file to reference. It may point to a DITA map, or to a file that is appropriate for your output format (such as XML TOC file for Eclipse output). CDATA #IMPLIED No
univ-atts attribute group (includes select-atts, id-atts, and localization-atts groups) A set of related attributes, described in univ-atts attribute group
global-atts attribute group (xtrf, xtrc) A set of related attributes, described in global-atts attribute group
class, outputclass Common attributes described in Other common DITA attributes

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