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DotNetNuke 6.2.3 Content Item Enhancements

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  • 4/7/2015



DotNetNuke 6.2.3 Content Item Enhancements

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This page describes the API enhancements bundled in DotNetNuke 6.2.3+.


Additional Retrieval Methods

Additional ways have been added that permit developers to retrieve content stored in the Content Items data store. These queries can be done by Module ID. Tab ID, by tag, by Vocabulary ID (all content items tagged with a Term from that Taxonomy Vocabulary) or by Content Type. The methods are defined in the IContentController interface.

The ContentController controller does not implement the TestableController pattern yet, so the way to use it is to instantiate a ContentController object directly.

Query by Tag

IQueryable GetContentItemsByTerm(string term);

IQueryable GetContentItemsByTerm(Term term);

These two overloads are used to search for ContentItems that have been tagged with the specified Taxonomy Term ("Taxonomy" is the DotNetNuke system for tagging). You can search either by Term object (retrieved from TermController) or by a string containing the tag.

Query by Multiple Tags

IQueryable GetContentItemsByTerms(IList terms);

IQueryable GetContentItemsByTerms(string[] terms);

These two methods allow you to search for Content Items that have been tagged with all of the specified tags.

Query by Content Type

IQueryable GetContentItemsByContentType(int contentTypeId);

IQueryable GetContentItemsByContentType(ContentType contentType);

These overloads allow you to search for Content Items that are of the specified Content Type (which can be retrieved from ContentTypeController).

Query by Module ID

IQueryable GetContentItemsByModuleId(int moduleId);

Query for Content Items that are associated with the specified Module ID (remember, Module ID is the unique ID of a particular instantiation of a module, not a representation of Desktop Module (which is common to all instantiations)

Query by Tab ID

IQueryable GetContentItemsByTabId(int tabId);

Retrieve a set of Content Items that are associoated with the specified DotNetNuke tab (page).

Query by Vocabulary ID

IQueryable GetContentItemsByVocabularyId(int vocabularyId);

Retrieve all Content Items that are tagged with Taxonomy Terms from the specified Taxonomy Vocabulary. A Vocabulary is sort of like a category for terms (one of which is "Tags").

Additional Properties

Additional properties were added in order to handle common meta data often associated with site content. These properties required no changes to the data store and utilize MetaData for retrieving and storing all properties. It is also worth noting that the Content List module (which displays search results based on taxonomy and folksonomy) is now updated to display "Title" when available.


public string ContentTitle;

The ContentTitle property is a textual description of the Content Item it is attached to.

It is stored in the Content Item MetaData dictionary.


There are 3 properties on ContentItem that can be used to store attachments to files registered in the DotNetNuke Filesystem API. However, it is recommended that you instead use the AttachmentController controller to manage Content Item attachments.


Any video files that are attached to the Content Item.

There are no restrictions on file extension for video files—they can be anything.


Any image files, in any format, that are attached to the Content Item. There are no restrictions on the file extension of attached images. There are, at the time of writing, no validation steps to ensure that the file is a real image.


Any files, of any format or type, that are attached to the Content Item. There is no validation or verification of individual files.


The AttachmentController has methods that allow you to attach files from the DotNetNuke Filesystem to a particular Content Item, and methods that allow you to retrieve all the existing attachments. There are permutations of these create and get methods for each of the attachment types (videos, images, files).

More complicated operations that are not available on AttachmentController need to be done by manipulating the Files, Images and 'Videos properties on {{ContentItem}..
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