Question

The generic dictionary is as follows:

public class ConcurrentDictionary<TKey, TValue> : IDictionary<TKey, TValue>

And specific dictionaries can be as follows:

var container = new ConcurrentDictionary<string, Unit>();
var container = new ConcurrentDictionary<string, CustomUnitClass>();

So, how can I check if some dictionary is of generic dictionary type?

object obj = GetObj(); // obj is some of many dictionaries
if(obj is ?)

Thank you in advance.

Answer 1

public class ConcurrentDictionary<TKey, TValue> : IDictionary<TKey, TValue>

is an ‘open generic type’, and you cannot have instances of open generic types.

However, if you want to know whether the given object is a dictionary which has generic type parameters, you can use reflection to determine that:

        var d1 = new Dictionary<int, string> ();

        var t = d1.GetType ();

        Console.WriteLine ("Generic? " + t.IsGenericType);