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Troubles implementing IEnumerable<T>7个
我希望我的类型实现IEnumerable< string> .我试图在一个Nutshell遵循C#,但是出了问题:
我希望我的类型实现IEnumerable< string> .我试图在一个Nutshell遵循C#,但是出了问题:
public class Simulation : IEnumerable<string> { private IEnumerable<string> Events() { yield return "a"; yield return "b"; } public IEnumerator<string> GetEnumerator() { return Events().GetEnumerator(); } }
但是我收到构建错误
Error 1 ‘EventSimulator.Simulation’ does not implement interface member ‘System.Collections.IEnumerable.GetEnumerator()’. ‘EventSimulator.Simulation.GetEnumerator()’ cannot implement ‘System.Collections.IEnumerable.GetEnumerator()’ because it does not have the matching return type of ‘System.Collections.IEnumerator’.
解决方法
你缺少IEnumerator IEnumerable.GetEnumerator():
public class Simulation : IEnumerable<string> { private IEnumerable<string> Events() { yield return "a"; yield return "b"; } public IEnumerator<string> GetEnumerator() { return Events().GetEnumerator(); } IEnumerator IEnumerable.GetEnumerator() { return GetEnumerator(); } }