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EXAMPLE: Retrieve item relations

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Use the following methods to retrieve related data:

using System.Linq;
using Telerik.Sitefinity.DynamicModules.Model;
using Telerik.Sitefinity.Modules.News;
using Telerik.Sitefinity.News.Model;
using Telerik.Sitefinity.RelatedData;
namespace SitefinityWebApp
{
public class RetrieveRelatedData
{
/// <summary>
/// Get all items of type DynamicContent, called "Speakers", that related to this news item through its RelatedData field "speakers"
/// </summary>
/// <param name="newsItem">The news item</param>
/// <returns>Returns a collection of related speakers</returns>
public IQueryable<DynamicContent> GetRelatedSpeakers(NewsItem newsItem)
{
var relatedSpeakers = newsItem.GetRelatedItems<DynamicContent>("speakers");
return relatedSpeakers;
}
/// <summary>
/// Get the count of all related data items
/// </summary>
/// <param name="newsItem">The news item</param>
/// <returns>The related speakers count</returns>
public int GetRelatedSpeakersCount(NewsItem newsItem)
{
var relatedSpeakersCount = newsItem.GetRelatedItemsCountByField("speakers");
return relatedSpeakersCount;
}
/// <summary>
/// Get all related parent items to the dynamic content item
/// </summary>
/// <param name="speaker">The speaker</param>
/// <returns>The related parent items</returns>
public IQueryable<NewsItem> GetRelatedParentItems(DynamicContent speaker)
{
var relatedParents = speaker.GetRelatedParentItems<NewsItem>();
return relatedParents;
}
/// <summary>
/// Delete the relation between the items
/// </summary>
/// <param name="newsItem">The news item</param>
/// <param name="relatedSpeaker">The related speaker</param>
public void DeleteRelation(NewsItem newsItem, DynamicContent relatedSpeaker)
{
var providerName = string.Empty;
var newsManager = NewsManager.GetManager(providerName);
newsItem.DeleteRelation(relatedSpeaker, "speakers");
newsManager.SaveChanges();
}
}
}
view raw RetrieveRelatedData.cs hosted with ❤ by GitHub

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