C#抽象類中的多個泛型型別

我正在嘗試創建一個抽象類 ThingieSection。它的派生型別將指定 ThingieSection 的型別。在 ThingieSection 的建構式中，我想要一個引數，它是 Thingie 的串列，它也是通用的。

我有一個問題，當派生類呼叫它的基類的建構式時，它認為 List 引數的型別應該是物件的型別。這是一個例子：

using System.Collections.Generic;

    public abstract class ThingieSection<T>
    {
        public string Title { get; private set; }
        public string TextStuff { get; private set; }
        public List<T> Thingies { get; private set; }

        protected ThingieSection(string title, string textStuff, List<Thingie<T>> Thingies)
        {

        }
        public abstract string Generate();

    }
    public abstract class Thingie<T>
    {
        public string TextStuff { get; private set; }
        protected Thingie(T workFlowEntity, string category)
        {
        }
        public abstract string Generate();

    }


    public class ProviderClassyChangesProposedThingieSection : ThingieSection<ProviderClassyChangesProposedSummaryThingie>
    {
        public ProviderClassyChangesProposedThingieSection(string title, string content, List<Thingie<Classy>> thingies) : base(title, content, thingies)
        {
        }

        public override string Generate() => throw new System.NotImplementedException();
    }


    public class ProviderClassyChangesProposedSummaryThingie : Thingie<Classy>
    {
        public ProviderClassyChangesProposedSummaryThingie(Classy workFlowEntity, string category) : base(workFlowEntity, category)
        {
        }

        public override string Generate() => throw new System.NotImplementedException();
    }

    public abstract partial class Classy
    {

    }

我試過通過改變來分離型別

public abstract class ThingieSection<T>

至

public abstract class ThingieSection<T1>

和

public List<T> Thingies { get; private set; } 

至

public List<T2> Thingies { get; private set; }

和ThingieSection 建構式

ThingieSection(string title, string textStuff, List<Thingie<T2>> Thingies)

但它也沒有用。

uj5u.com熱心網友回復：

我想你想要這個。您的原始 ThingieSection 僅指定一個通用引數，因此 List 和 ThingieSection 都必須使用該型別。這似乎不是您的意圖 - 您希望能夠擁有兩種型別，為此，您需要使用兩個引數。

using System.Collections.Generic;
namespace ThingsAndStuff
{

    public abstract class ThingieSection<T, U>
    {
        public string Title { get; private set; }
        public string TextStuff { get; private set; }
        public List<U> Thingies { get; private set; }

        protected ThingieSection(string title, string textStuff, List<Thingie<U>> Thingies)
        {

        }
        public abstract string Generate();

    }
    public abstract class Thingie<T>
    {
        public string TextStuff { get; private set; }
        
        protected Thingie(T workFlowEntity, string category)
        {
        }
        
        public abstract string Generate();

    }


    public class ProviderClassyChangesProposedThingieSection : ThingieSection<ProviderClassyChangesProposedSummaryThingie, Classy>
    {
        public ProviderClassyChangesProposedThingieSection(string title, string content, List<Thingie<Classy>> thingies) : base(title, content, thingies)
        {
        }

        public override string Generate() => throw new System.NotImplementedException();
    }


    public class ProviderClassyChangesProposedSummaryThingie : Thingie<Classy>
    {
        public ProviderClassyChangesProposedSummaryThingie(Classy workFlowEntity, string category) : base(workFlowEntity, category)
        {
        }

        public override string Generate() => throw new System.NotImplementedException();
    }

    public abstract partial class Classy
    {

    }
}

uj5u.com熱心網友回復：

你可能想要一個串列Thingie<T>

public List<Thingie<T>> Thingies { get; private set; }

標籤：C＃仿制药

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