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Interface IContentLoader

Describes a service that can be used to read content data objects from a repository.

Namespace: EPiServer
Assembly: EPiServer.dll
Version: 7.19.2
Syntax
public interface IContentLoader

Methods

Get<T>(ContentReference)

Gets the content item represented by the provided reference.

Declaration
T Get<T>(ContentReference contentLink)

    where T : IContentData
Parameters
Type Name Description
ContentReference contentLink

The link to the content.

Returns
Type Description
T

The requested content item, as the specified type.

Type Parameters
Name Description
T

The type of content to get.

Exceptions
Type Condition
TypeMismatchException

Is thrown if actual type is not assignable to T.

ContentNotFoundException

Is thrown if there is no IContent instance with contentLink as id.

Get<T>(ContentReference, ILanguageSelector)

Gets the content item represented by the provided reference in the language given by the provided language selector.

Declaration
T Get<T>(ContentReference contentLink, ILanguageSelector selector)

    where T : IContentData
Parameters
Type Name Description
ContentReference contentLink

The link to the content.

ILanguageSelector selector

The selector that provides the language to get the content in.

Returns
Type Description
T

The requested content, as the specified type, in the specified language.

Type Parameters
Name Description
T

The type of content to get.

Exceptions
Type Condition
TypeMismatchException

Is thrown if actual type is not assignable to T.

ContentNotFoundException

Is thrown if there is no IContent instance with contentLink as id.

Get<T>(Guid)

Gets the content item represented by the provided GUID.

Declaration
T Get<T>(Guid contentGuid)

    where T : IContentData
Parameters
Type Name Description
System.Guid contentGuid

The content identifier.

Returns
Type Description
T

The requested content item, as the specified type.

Type Parameters
Name Description
T

The type of content to get.

Exceptions
Type Condition
TypeMismatchException

Is thrown if actual type is not assignable to T.

ContentNotFoundException

Is thrown if there is no IContent instance with contentGuid as id.

Get<T>(Guid, ILanguageSelector)

Gets the content item represented by the provided GUID in the language given by the provided language selector.

Declaration
T Get<T>(Guid contentGuid, ILanguageSelector selector)

    where T : IContentData
Parameters
Type Name Description
System.Guid contentGuid

The content identifier.

ILanguageSelector selector

The selector that provides the language to get the content in.

Returns
Type Description
T

The requested content item, as the specified type.

Type Parameters
Name Description
T

The type of content to get.

Exceptions
Type Condition
TypeMismatchException

Is thrown if actual type is not assignable to T.

ContentNotFoundException

Is thrown if there is no IContent instance with contentGuid as id.

GetAncestors(ContentReference)

Retrieves all content items located above the specified content.

Declaration
IEnumerable<IContent> GetAncestors(ContentReference contentLink)
Parameters
Type Name Description
ContentReference contentLink

The reference to the item whose ancestors you want to retrieve.

Returns
Type Description
System.Collections.Generic.IEnumerable<IContent>

A list of all items located above the specified reference.

GetBySegment(ContentReference, String, ILanguageSelector)

Gets the child IContentData instance that has a RouteSegment that matches urlSegment.

Declaration
IContent GetBySegment(ContentReference parentLink, string urlSegment, ILanguageSelector selector)
Parameters
Type Name Description
ContentReference parentLink

The parent link.

System.String urlSegment

The URL segment.

ILanguageSelector selector

The selector.

Returns
Type Description
IContent

The content instance that matches urlSegment or null if no match.

Remarks

It is the passed in selector that is responsible to handle fallback and replacement settings for language.

GetChildren<T>(ContentReference)

Gets the children of the content item represented by the provided reference.

Declaration
IEnumerable<T> GetChildren<T>(ContentReference contentLink)

    where T : IContentData
Parameters
Type Name Description
ContentReference contentLink

A reference to the parent whose children should be returned.

Returns
Type Description
System.Collections.Generic.IEnumerable<T>

The children of the specifed parent, as the specified type.

Type Parameters
Name Description
T

The type of children to get.

GetChildren<T>(ContentReference, ILanguageSelector)

Gets the children of the content item represented by the provided reference in the language given by the provided language selector.

Declaration
IEnumerable<T> GetChildren<T>(ContentReference contentLink, ILanguageSelector selector)

    where T : IContentData
Parameters
Type Name Description
ContentReference contentLink

A reference to the parent whose children should be returned.

ILanguageSelector selector

The selector that provides the language to get the content in.

Returns
Type Description
System.Collections.Generic.IEnumerable<T>

The children of the specifed parent, as the specified type.

Type Parameters
Name Description
T

The type of children to get.

GetChildren<T>(ContentReference, ILanguageSelector, Int32, Int32)

Gets the children of the content item represented by the provided reference in the language given by the provided language selector.

Declaration
IEnumerable<T> GetChildren<T>(ContentReference contentLink, ILanguageSelector selector, int startIndex, int maxRows)

    where T : IContentData
Parameters
Type Name Description
ContentReference contentLink

A reference to the parent whose children should be returned.

ILanguageSelector selector

The selector that provides the language to get the content in.

System.Int32 startIndex

The index of the first child to return.

System.Int32 maxRows

The max number of children to return.

Returns
Type Description
System.Collections.Generic.IEnumerable<T>

The children of the specifed parent, as the specified type.

Type Parameters
Name Description
T

The type of children to get.

Remarks

This is the overload of GetChildren that supports paging.

GetDescendents(ContentReference)

Gets references to the descendents of the specified content.

Declaration
IEnumerable<ContentReference> GetDescendents(ContentReference contentLink)
Parameters
Type Name Description
ContentReference contentLink

A reference to the parent whose descendents should be returned.

Returns
Type Description
System.Collections.Generic.IEnumerable<ContentReference>

A list of references to all the descendent of specified content.

GetItems(IEnumerable<ContentReference>, ILanguageSelector)

Gets all content items that is represented by the provided references in the language given by the provided language selector.

Declaration
IEnumerable<IContent> GetItems(IEnumerable<ContentReference> contentLinks, ILanguageSelector selector)
Parameters
Type Name Description
System.Collections.Generic.IEnumerable<ContentReference> contentLinks

A list of references to content that should be fetched.

ILanguageSelector selector

The selector that provides the language to get the content in.

Returns
Type Description
System.Collections.Generic.IEnumerable<IContent>

A list of content for the specifed references.

Remarks

For references that specifies a specific version (that is where WorkID is set) the selector is ignored and that specific version is returned.

If contentLinks contain duplicate entries only one IContent instance is returned for the duplicate entries.

TryGet<T>(ContentReference, out T)

Gets the content item represented by the provided reference.

Declaration
bool TryGet<T>(ContentReference contentLink, out T content)

    where T : IContentData
Parameters
Type Name Description
ContentReference contentLink

The link to the content.

T content

The content with given id or null if content not found or if type is not assignable to T.

Returns
Type Description
System.Boolean

True if content is found or false if content is not found or if found content is of a type not assignable to T.

Type Parameters
Name Description
T

The type of content to get.

TryGet<T>(ContentReference, ILanguageSelector, out T)

Gets the content item represented by the provided reference.

Declaration
bool TryGet<T>(ContentReference contentLink, ILanguageSelector languageSelector, out T content)

    where T : IContentData
Parameters
Type Name Description
ContentReference contentLink

The link to the content.

ILanguageSelector languageSelector

The selector that provides the language to get the content in.

T content

The content with given id or null if content not found or if type is not assignable to T.

Returns
Type Description
System.Boolean

True if content is found or false if content is not found or if found content is of a type not assignable to T.

Type Parameters
Name Description
T

The type of content to get.

Extension Methods