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    Querying & Models

    Overview of various ways of querying, filtering and searching published content for use on your website.

    UDI identifiers

    Umbraco 7.6.0+ Umbraco stores identifiers in UDI format for most Umbraco object types. This identifier stores all of the metadata required to retrieve an Umbraco object and is parse-able within text. Example: umb://document/4fed18d8c5e34d5e88cfff3a5b457bf2. UDI's can be used in many of the querying APIs.


    IPublishedContent is strongly typed model for content, media and members that is used to render content in your views for your website.


    UmbracoHelper is the unified way to work with published content/media on your website. Whether you are using MVC or WebForms you will be able to use UmbracoHelper to query/traverse Umbraco published data.

    MembershipHelper (Available on version 8 and below)

    MembershipHelper is a helper class for accessing member data in the form of IPublishedContent.

    IMemberManager (Available on version 9 and above)

    IMemberManager is an user manager interface for accessing member data in the form of MemberIdentityUser and converting it to IPublishedContent.


    The IPublishedContentQuery interface contains query methods for accessing strongly typed content in services etc.


    The ITagQuery interface allows to work with tags in Umbraco.


    The UmbracoContext is a simplified way to work with the current request on your website.