一个WCF合同可以使用多个接口的回调? [英] Can a WCF contract use multiple callback interfaces?
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问题描述
我想是这样的:
[的ServiceContract(
CallbackContract = typeof运算(CallbackContract_1)
CallbackContract = typeof运算(CallbackContract_2)
CallbackContract = typeof运算(CallbackContract_3))
]
公共接口SomeWcfContract {
我知道它不会像这样工作。是否有仍然有办法让一个单项合同中使用多个回调接口?
解决方案
一个服务合同,只能指定 回调合同,如果该合同 是所有回调的子接口 合同的定义合同 自有基地的合同。
接口ICallbackContract1
{...}
接口ICallbackContract2:ICallbackContract1
{...}
[的ServiceContract(CallbackContract = typeof运算(ICallbackContract1))]
接口IMyBaseContract
{...}
[的ServiceContract(CallbackContract = typeof运算(ICallbackContract2))]
接口IMySubContract:IMyBaseContract
{...}
或
接口ICallbackContract1
{...}
接口ICallbackContract2
{...}
接口ICallbackContract3:ICallbackContract2,ICallbackContract1
{...}
[的ServiceContract(CallbackContract = typeof运算(ICallbackContract1))]
接口IMyBaseContract1
{...}
[的ServiceContract(CallbackContract = typeof运算(ICallbackContract2))]
接口IMyBaseContract2
{...}
[的ServiceContract(CallbackContract = typeof运算(ICallbackContract3))]
接口IMySubContract:IMyBaseContract1,IMyBaseContract2
{...}
I'm trying something like this:
[ServiceContract (
CallbackContract = typeof (CallbackContract_1),
CallbackContract = typeof (CallbackContract_2),
CallbackContract = typeof (CallbackContract_3))
]
public interface SomeWcfContract {
I know it does not work like this. Is there still a way to get a single contract use multiple callback interfaces?
解决方案
A service contract can only designate a callback contract if that contract is a subinterface of all callback contracts defined by the contract's own base contracts.
interface ICallbackContract1
{...}
interface ICallbackContract2 : ICallbackContract1
{...}
[ServiceContract(CallbackContract = typeof(ICallbackContract1))]
interface IMyBaseContract
{...}
[ServiceContract(CallbackContract = typeof(ICallbackContract2))]
interface IMySubContract : IMyBaseContract
{...}
or
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
{...}
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