Exception assigning dynamic content type to a taxonomy categ

Posted by Community Admin on 02-Jun-2015 00:00

Hi,

Using Sitefinity version 8.0+ I'm getting exception "The specified property 'Category' does not exist on type 'Telerik.Sitefinity.DynamicTypes.Model.ModelofType.ModelOfType'" while assigning dynamic content type to a taxonomy category and here is my code:

//Create new Dynamic Item
DynamicModuleManager dynamicModuleManager = DynamicModuleManager.GetManager();
Type contentType = TypeResolutionService.ResolveType("Telerik.Sitefinity.DynamicTypes.Model.ModelofType.ModelOfType");
DynamicContent contentItem = dynamicModuleManager.CreateDataItem(contentType);

contentItem.SetValue("Title", title);

var urlName = Regex.Replace(title, @"[\\~#%&*/:<>?|""@ ]", "-").ToLower();
contentItem.SetString("UrlName", urlName);

contentItem.SetValue("Owner", SecurityManager.GetCurrentUserId());
contentItem.SetValue("PublicationDate", DateTime.Now);
contentItem.SetWorkflowStatus(dynamicModuleManager.Provider.ApplicationName, "Draft");

//assign content to category
//Get the Categories taxonomy
var categoryTaxonomy = taxonomyManager.GetTaxonomies<HierarchicalTaxonomy>().SingleOrDefault(s => s.Name == "Custom Categories");
var subCategoryTaxa = categoryTaxonomy.Taxa.Where(t => t.Title.ToString().ToLower() == "some-sub-category".ToLower()).FirstOrDefault();

contentItem.Organizer.AddTaxa("Category", subCategoryTaxa.Id);

// Save the changes
dynamicModuleManager.SaveChanges();

// Send the Item for approval
var bag = new Dictionary<string, string>();
bag.Add("ContentType", contentItem.GetType().FullName);
WorkflowManager.MessageWorkflow(contentItem.Id, contentItem.GetType(), dynamicModuleManager.Provider.ToString(), "Publish", false, bag);

Any input is appreciated.

Thanks!!!

Posted by Community Admin on 05-Jun-2015 00:00

Hello Uttam,

Regarding the error message which you are getting: "The specified property 'Category' does not exist on type 'Telerik.Sitefinity.DynamicTypes.Model.ModelofType.ModelOfType'" it seems that there is not a custom field Category added to your dynamic module. Can you please make sure that you have a category custom field added to your dynamic module?

In addition to this, please note that in order to add categories and tags you can use the extension method SetValue().

myModuleItem.SetValue("CustomFieldName", "The value");

Please make sure that you have added the following namespace:

using Telerik.Sitefinity.Model;

Here is also a sample code which add a certain category titled Cat1 to a selected event item:

EventsManager eventsManager = new EventsManager();

// Gets the evnt item

var eventItem = eventsManager.GetEvents().Where(ev => ev.Title == "Event UI").FirstOrDefault();

// Gets the manager which operates with Taxonomies

TaxonomyManager taxonomyManager = TaxonomyManager.GetManager();

// Get the ID of the singe instance (HierarchicalTaxon) of type Hierarchicaltaxonomy

//(This can be Categories or any custom HierarchicalTaxonomy)

var categoryTaxonomy = taxonomyManager.GetTaxonomies<HierarchicalTaxonomy>().SingleOrDefault(s => s.Name == "Categories");

var singleCategoryId = categoryTaxonomy.Taxa.Where(c => c.Title == "Cat1").FirstOrDefault().Id;

// Get a collection of all the IDs of the categories of the event, if any

var myEventsCategories = eventItem.GetValue<TrackedList<Guid>>("Category");

// add the selected category id to the above collection

myEventsCategories.Add(singleCategoryId);

// assign the modified collection to the Category metafield of the event item

// this is equivalent to adding a new Category to a event through the UI

eventItem.SetValue("Category", myEventsCategories);

eventsManager.SaveChanges();

You may also checkout the video for your convenience demonstrating the results on your side.

You can use the same approach for adding categories to your dynamic module items. You can also checkout the following forum thread and the following forum post where the same has been discussed.

Regards,
Sabrie Nedzhip
Telerik

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Posted by Community Admin on 05-Jun-2015 00:00

Thanks Sabrie, your input helped a lot.

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