How do you convert a dictionary to a ConcurrentDictionary?

Question

I have seen how to convert a ConcurrentDictionary to a Dictionary, but I have a dictionary and would like to convert to a ConcurrentDictionary. How do I do that?... better yet, can i set the link statement to be a ConcurrentDictionary?

var customers = _customerRepo.Query().Select().ToDictionary(x => x.id, x => x);

Answer 1

Use ConcurrentDictionary<TKey, TValue> Constructor (IEnumerable<KeyValuePair<TKey, TValue>>) constructor which can accept a dictionary object like:

Dictionary<int, string> dictionary = new Dictionary<int, string>();
dictionary.Add(1,"A");
dictionary.Add(2, "B");

ConcurrentDictionary<int,string> concurrentDictionary = 
             new ConcurrentDictionary<int, string>(dictionary);

can i set the LINQ statement to be a ConcurrentDictionary?

No. You can not.. There is no extension method available to create ConcurrentDictionary in LINQ. You can either create your own extension method or you can use the ConcurrentDictionary constructor in your LINQ query while projecting results.