I have the following class and extension class (for this example): public class Person<T> { public T Value { get; set; }
We know that implementing classes are still invariant, despite the fact that their interfa开发者_如何学编程ces are variant. However I am inquiring, is cov/contravariance a step closer to parametric po
The following code doesn\'t compile (error CS0123: No overload for \'System.Convert.ToString(object)\' matches delegate \'System.Converter<T,string>\'):
I have a set of POCOs, all of which implement the following simple interface: interface IIdObject { int Id { get; set; }
This question already has answers here: Closed 12 years ago. Possible Duplicate: Why isn’t there generic variance for classes in C# 4.0?
The following code fails to compile (using VS2010) and I don\'t see why. The compiler should be able to infer that List<TestClass> is \'compatible\' (sorry for lack of a better word) with IEnume
What does the statement mean? From here ref and out parameters in C# and cannot be marked as variant. 1) Does it mean that the following can not be done.
Is there a way to refl开发者_Python百科ect on an interface to detect variance on its generic type parameters and return types? In other words, can I use reflection to differentiate between the two int
Suppose I have a small inheritance hierarchy of Animals: public interface IAnimal { string Speak(); } public class Animal : IAnimal {
Consider the following classes representing an Ordering system: Public Class OrderBase Public MustOverride Property OrderItem as OrderItemBase
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