WCF协定可以使用多个回调接口吗？

Question

我想是这样的：

[ServiceContract (
    CallbackContract = typeof (CallbackContract_1), 
    CallbackContract = typeof (CallbackContract_2), 
    CallbackContract = typeof (CallbackContract_3)) 
] 
public interface SomeWcfContract { 

我知道这并不喜欢这个工作。是否还有办法让单个合约使用多个回调接口？

Answer 1

服务合同只能指定 回调合同，如果合同中 是合同的 自己的基地契约中定义的所有回调 合同的子接口。

interface ICallbackContract1 
{...} 

interface ICallbackContract2 : ICallbackContract1 
{...} 

[ServiceContract(CallbackContract = typeof(ICallbackContract1))] 
interface IMyBaseContract 
{...} 

[ServiceContract(CallbackContract = typeof(ICallbackContract2))] 
interface IMySubContract : IMyBaseContract 
{...} 

或

interface ICallbackContract1 
{...} 
interface ICallbackContract2 
{...} 
interface ICallbackContract3 : ICallbackContract2,ICallbackContract1 
{...} 

[ServiceContract(CallbackContract = typeof(ICallbackContract1))] 
interface IMyBaseContract1 
{...} 
[ServiceContract(CallbackContract = typeof(ICallbackContract2))] 
interface IMyBaseContract2 
{...} 
[ServiceContract(CallbackContract = typeof(ICallbackContract3))] 
interface IMySubContract : IMyBaseContract1,IMyBaseContract2 
{...} 

see for more details