c#通用接口，其中参数为通用

我有一个接口

public interface IOfflineBackedRepo<TSummary,TDetail>
{
    Task SyncAsync();
}

---

如何解决语法问题？

ISyncManager

在其范围内没有提到

TSummary，TDetail

TSummary

和

TDetail

是定义的，仅存在于

IOfflineBackedRepo

周围。当您尝试在其他任何地方使用它时，您必须定义一个将用于替换它们的类型。它可以是实际类型，也可以是从泛型参数获得的类型，但必须在

ISyncManager

在最基本的方面,

public interface ISyncManager<T,U,V> where T : IOfflineBackedRepo<U,V>
{
    void Register(T repo);

    Task SyncNowAsync(); // this loops through and calls SyncAsync on the repo
}

---

语法错误是什么？找不到类型或命名空间TSummary。这是否意味着您需要在某个地方定义

TSummary

？公共接口是SyncManager，请欣赏

public interface ISyncManager<T,U,V> where T : IOfflineBackedRepo<U,V>
{
    void Register(T repo);

    Task SyncNowAsync(); // this loops through and calls SyncAsync on the repo
}

public interface IOfflineBackedRepo
{
    Task SyncAsync(); // this function is not typed specific right?
}

public interface IOfflineBackedRepo<TSummary,TDetail> : IOfflineBackedRepo
{
    // other definition about type specific
}

public interface ISyncManager<T> where T : IOfflineBackedRepo
{
    void Register(T repo);

    Task SyncNowAsync(); // this loops through and calls SyncAsync on the repo
}

public static class SyncManagerExt
{
    // Register is just Add to collection
    public static Task SyncNowAsync(this ICollection<T> items) where T : IOfflineBackedRepo
    {
        // loops through items and calls SyncAsync on the repo
    }
}