WebNov 1, 2024 · As I understand it, C# 9.0 covariant returns only work for overrides, they don't work for interface implementations. The draft spec of the feature does mention interface implementation, but only after this note: The remainder of the draft specification below proposes a further extension to covariant returns of interface methods to be considered ... WebDec 12, 2024 · Java is not the same as C#. Because of this limitation, you will need to be aware of the respective generated C# code as there might be certain things that the languages handle differently. EX: Java -> C#. get/set methods -> properties; fields -> properties; listeners -> events; static nested class -> nested class
How to explicitly implement interface members - C# …
1.Change the return type of the method to match that of the interface member. See more •Interfaces See more The following code generates CS0738 because the class method returns void and the interface member of the same name returns int: See more WebProduces the following error: error CS0738: 'InheritanceTest.MyData' does not implement interface member 'InheritanceTest.ISomeData.Data'. 'InheritanceTest.MyData.Data' cannot implement 'InheritanceTest.ISomeData.Data' because it does not have the matching return type of 'System.Collections.Generic.IEnumerable'. list of books written by james patterson
Strange CS0738 error when subclassing a parent using ... - Github
WebReason for the Error You’ll get this error in your C# code when the class that is derived from the interface does not implement one or more of the interface members. For example, let’s try to compile the below C# code snippet. RUN CODE SNIPPET C# 21 1 using System; 2 3 namespace DeveloperPublishConsoleCore 4 { 5 public interface IEmployee 6 { 7 WebFeb 22, 2024 · This is a specification for covariant return types in C#. Our intent is to permit the override of a method to return a more derived return type than the method it overrides, and similarly to permit the override of a read-only … WebNov 1, 2024 · CS0738: 'MyContainerClass' does not implement interface member 'IMyContainer.Children'. 'MyContainerClass.Children' cannot implement … images of small homes