Creating a dictionary from another dictionary using LINQ

Question

I have a dictionary of the type:

IDictionary> my_dictionary

bar class looks like this:

cl         


        

Answer 1

var new_dict = my_dictionary.Select(x => new KeyValuePair>(
                                                 x.Key,
                                                 x.Value
                                                  .Where(y => y.IsValid)
                                                  .ToList()))
                            .Where(x => x.Value.Count > 0)
                            .ToDictionary(x => x.Key, x => x.Value.AsReadOnly());