Getting null on querying Taxonomy

Question

I am trying to fetch keywords using 'GetTaxonomyKeywords' but its getting me null.

I have published my Taxonomy and entries are there in the Broker DB.

I have referred blogs like (https://code.google.com/p/dynamic-delivery-4-tridion/source/browse/trunk/dotnet/DD4T.Providers.SDLTridion2011sp1/TridionTaxonomyProvider.cs) for coding.

Am I missing anything here? I tried even putting "Taxonomy" item entry in my storage config.

My calling code :

taxonomy = tax.GetTaxonomyKeywords(
    "tcm:55-2297-512", 
    compFilter, 
    new TaxonomyHierarchyFormatter()
);

Answer 1

try this code

public static IEnumerable<Keyword> GetKeywords(string categoryUriToLookIn)
    {
        TaxonomyFactory objTaxonomy = new TaxonomyFactory();

        // Create filter to retrieve all keywords in a taxonomy
        CompositeFilter compFilter = new CompositeFilter();

        // Get keywords in taxonomy (hierarchically)
        IEnumerable<Keyword> taxonomy = null;

        try
        {
            // Ugly way to see if a taxonomy exists. Alternative is to loop through all taxonomys in Tridion and check if the categoryUriToLookIn exists...
            taxonomy = objTaxonomy.GetTaxonomyKeywords(categoryUriToLookIn, compFilter, new TaxonomyHierarchyFormatter()).KeywordChildren.Cast<Keyword>();


        }
        catch (Exception ex)
        {
            //Log.Debug("There has been an error retrieving taxonomy: " + ex);
        }

        if (taxonomy != null)
        {
            // Search in taxonomy
            foreach (var currentKeyword in taxonomy)
            {
                // Return keyword
                yield return currentKeyword;
            }
        }
    }