Get the hierarchical Category and keywords in TOM.NET

Question

I have Location category and under this category: region->countries->cities.I want to get the hierarchical category data in XML in TOM.NET by passing parent's categoryID. I just want basic info e.g. tcmId , Title

I am trying below code :

TaxonomiesOwlFilter filter = new TaxonomiesOwlFilter(Engine.GetSession());
filter.RootCategories = new Category[] { new Category(Engine.GetSession(), 
                                                      new TcmUri("tcm:xx-xxxx-xxx")) };
Repository rep = this.Publication as  Repository;

Package.AddXml("Keywordxml", rep.GetTaxonomiesOwl(filter).ToString());

But while executing the code, I am getting the below error:

"Invalid type:Category."

I really don't know how to do that, just trying solution found on sites. Please let me know.

Answer 1

Your code looks okay but I think you should use "OuterXml" or "InnerXml" in-place of "ToString", when adding the xml to package.

So the code will be rep.GetTaxonomiesOwl(filter).OuterXml inplace of rep.GetTaxonomiesOwl(filter).ToString().

Well, rep.GetTaxonomiesOwl(filter) return a object of type System.Xml.XmlElement. So if you use ToString() method, it will just returns a string that represents the XmlElement object.

Update:

Why are you creating a "New" category object? please get the category using engine.GetObject() and use it in filter. I am assuming, you get the right publication in Repository rep = this.Publication as Repository.

Here is the code. I did not run it but I guess it should work:

TaxonomiesOwlFilter filter = new TaxonomiesOwlFilter(engine.GetSession());
Category cat = engine.GetObject(new TcmUri("tcm:xxx-xxxxx-xxx")) as Category;
filter.RootCategories = new Category[] { cat };
Repository rep = this.Publication as Repository;
package.PushItem("Keywordxml", package.CreateXmlDocumentItem(ContentType.Xml, rep.GetTaxonomiesOwl(filter).OwnerDocument));