C#: Declaring and using a list of generic classes with different types, how?

Question

Having the following generic class that would contain either string, int, float, long as the type:

public class MyData         


        

Answer 1

You can create a generic wrapper for SomeMethod and check for the type of the generic argument, then delegate to the appropriate method.

public void SomeMethod(T value)
{
    Type type = typeof(T);

    if (type == typeof(int))
    {
        SomeMethod((int) (object) value); // sadly we must box it...
    }
    else if (type == typeof(float))
    {
        SomeMethod((float) (object) value);
    }
    else if (type == typeof(string))
    {
        SomeMethod((string) (object) value);
    }
    else
    {
        throw new NotSupportedException(
            "SomeMethod is not supported for objects of type " + type);
    }
}