WCF 公开泛型类型“T" [英] WCF exposing generic type 'T'

问题描述

我在这里为插入和删除操作编写了一个 WCF 服务，我们使用了通用方法，但它给出了以下错误System.Runtime.Serialization.InvalidDataContractException:类型‘T’不能作为架构类型导出，因为它是一个开放的泛型类型.如果泛型类型的所有泛型参数类型都是实际类型，你只能导出它."

I write a WCF service for Insert and delete operation here we used generic method but it gives following error "System.Runtime.Serialization.InvalidDataContractException: Type 'T' cannot be exported as a schema type because it is an open generic type. You can only export a generic type if all its generic parameter types are actual types."

这里的EntityBase2"是所有实体的基类

here "EntityBase2" is base class for all entities

[ServiceContract]
[ServiceKnownType(typeof(EntityBase2))]
public interface IBackupUtility
{
    [OperationContract]
    void Delete<T>(T entity) where T : EntityBase2;

    [OperationContract]
    void InsertORUpdate<T>(T entity) where T : EntityBase2;        
}

问题是如何公开泛型类型T"?

Question is how i can expose generic type 'T'?

推荐答案

这篇文章确实很旧，但也许有人觉得这个解决方案有用:WCF 和泛型

This post is old indeed, but maybe someone find this solution useful: WCF and Generics

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