###### 3.1.2.1.5 navref

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"/>

###### Contains

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

###### Inheritance

- map/navref

###### Example

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

    <map title="MyComponent tasks">
     <navref mapref="../com.ibm.xml.doc/othermap1.ditamap"/>
     <navref mapref="../com.ibm.xml.doc/othermap2.ditamap"/>
    </map>

###### Attributes

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 3.4.1.3 univ-atts attribute group |  |  |
global-atts attribute group (xtrf, xtrc) | A set of related attributes, described in 3.4.1.2 global-atts attribute group |  |  |
class, outputclass | Common attributes described in 3.4.1.9 Other common DITA attributes |  |  |

Previous Topic: 3.1.2.1.4 anchor

Next Topic: 3.1.2.1.6 reltable

Parent Topic: 3.1.2.1 Basic map elements

Sibling Topics:

3.1.2.1.1 map

3.1.2.1.2 topicref

3.1.2.1.3 topicmeta

3.1.2.1.4 anchor

3.1.2.1.6 reltable

3.1.2.1.7 relrow

3.1.2.1.8 relcell

3.1.2.1.9 relheader

3.1.2.1.10 relcolspec