Add more values to the same key in dictionary(C#3.0)

c#-3.0

I have a dictionary like

public Dictionary<DateTime, Dictionary<string, string>> dicCollection

How can I add more values to the same key in this dictionary?

Using C# 3.0

Best Solution

If you want multiple values for a single key, you need to put the values into a collection or create an object which contains all the data members you need.

It might be easiest to just change your value to a List<>:

public Dictionary<DateTime, List<Dictionary<string, string>>> myDictionary;

Related Solutions

C# – Getting all types that implement an interface

Mine would be this in c# 3.0 :)

var type = typeof(IMyInterface);
var types = AppDomain.CurrentDomain.GetAssemblies()
    .SelectMany(s => s.GetTypes())
    .Where(p => type.IsAssignableFrom(p));

Basically, the least amount of iterations will always be:

loop assemblies  
 loop types  
  see if implemented.

C# – Opaque dictionary key pattern in C#

From what I can tell, you can use a generic Tuple class, and you have no need of the inner anonymous class. A Tuple class could be useful elsewhere in your solution (which is why .NET 4.0 will have built-in generic Tuple classes). Equals can compare the values of First and Second, while GetHashCode would combine the hashcodes of the Tuple's members.

        //4.0 Beta1 GetHashCode implementation
        int a = 5; int b = 10;
        Tuple<int, int> t = new Tuple<int, int>(a, b);

        Console.WriteLine(t.GetHashCode() == (((a << 5) + a) ^ b));

Best Solution

Related Solutions

C# – Getting all types that implement an interface

C# – Opaque dictionary key pattern in C#

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