通用接口问题

Question

所以这是我的问题:

我有界面:

public interface ICell<Feature> 
where Feature: struct, IComparable<ICell<Feature>>
{
    List<ICell<Feature>> Window { get; set; }
    Feature              GenusFeature { get; set; }
    Double               VitalityRatio { get; set; }
    String               PopulationMarker { get; set; }
    Boolean              Captured { get; set; }
}

并希望以ISubstratum这种方式实现接口:

public interface ISubstratum<K,T> : IDisposable 
where K : IDisposable
where T : struct
{
    ICell<T> this[Int32 i, Int32 j] { get; set; }
}

但编译器说:

The type 'T' cannot be used as type parameter 'Feature' in the generic type or method 'Colorizer.Core.ICell<Feature>'. There is no boxing conversion or type parameter conversion from 'T' to 'System.IComparable<Colorizer.Core.ICell<T>>'.

在一些可能的ISubstratum实现中,我计划将位图作为K && ICell(扩展像素信息)传递为T.

怎么解决这个？

谢谢!

Answer 1

基本上你必须对T有一个额外的约束:

where T : struct, IComparable<ICell<T>>

那它应该工作正常.这是需要满足在相同的约束Feature在ICell<Feature>.

我也建议你重命名类型参数Feature,以TFeature使其更明显的类型参数.