Question

This is my entity collection.

Dictionary<string, List<Dictionary<string, string>>> EntityCollection = new Dictionary<string, List<Dictionary<string, string>>>();

When I receive value in EntityCollection, I want to filter it.

var filtered = from entity in EntityCollection
                       where entity.Key == entityId
                       select entity.Value;

Now I want only entity.value.
So I created a variable:

List<Dictionary<string, string>> entityDetails = new List<Dictionary<string, string>>();

How can I cast filtered to entityDetails?

I tried with filtered.ToList<Dictionary<string, string>>, but no success.

Answer 1

You can get directly from Dictionary instead of using LINQ like yours:

List<Dictionary<string, string>> entityDetails = EntityCollection[entityId];

Or if you want to avoid exception from the first approach if dictionary does not have a key

List<Dictionary<string, string>> entityDetails;
if (EntityCollection.TryGetValue(entityId, out entityDetails))
{
}