C#•2y ago

Failing upcast

Hello, for some reason im getting this error while my class Jelo is being declared as

public class Jelo : Namernica, IManaged

public class Jelo : Namernica, IManaged

Also if i try to explicitly cast, my app just breaks during runtime

1 Reply

ГоксиOP•2y ago

also if i map it with .Select(it => it as IManaged), it works, why isn't it able to directly cast ? https://ericlippert.com/2007/10/16/covariance-and-contravariance-in-c-part-1/