如何将数据提取从C＃/ WCF代码传递给托管C ++

大家好，



能告诉我吗如何将C＃/ WCF代码（应用程序）的数据传输传递给C ++ / CLI代码方法。





从C＃代码我可以传递数据合同，但是在托管（C ++ / CLI） ）代码方如何将该数据合同作为参数接收？



请用一些例子给我解释。





换句话说，托管C ++中datacontract的等价物是什么，所以我可以将它作为参数传递给方法，可以从C＃中调用。





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$ c $ b在C＃应用程序中，我有一些像这样的代码

SubscriptionDataContract subscriptionData = null;

subscriptionData = new SubscriptionDataContract（）;



从C＃代码应用程序，我需要在托管C ++中调用以下方法（C ++ / CLI）

我要传递上述数据联系人。



ClientSideWrapper.ClientInterface iClient = new ClientSideWrapper.ClientInterface（ ）;



iClient.sendMessage（句柄，订阅数据）;





我需要在Managed C ++（C ++ / CLI）中创建一个方法，这样我就可以将该数据从C＃传递给Managed C ++ cod e并执行所需的处理。





但似乎托管C ++不会采用datacontract，因为我得到以下错误：

在Manged C ++中使用此函数。





EXPORT_VOID sendMessage（handle_t binding，DataContracts :: NotificationDataContract ^ dc） ;





错误C3395：'sendMessage'：__ declspec（dllexport）无法应用于具有__clrcall调用约定的函数





请告诉我如何处理这种情况。



感谢您的帮助。



谢谢，

Sudhakar

Hi All ,

Could you please let me know How to pass a datacontract from a C#/WCF code (application) to C++/CLI code method.


From C# code i can pass a data contract, but at managed (C++/CLI) code side how can I receive that data contract as a parameter?

Please explain me with some examples.


in other words what is the equvialent of datacontract in managed C++ , so that i can pass it to the method as a parameter which can be called from C#.


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in C# application, i have some code like this
SubscriptionDataContract subscriptionData = null;
subscriptionData = new SubscriptionDataContract();

From C# code application , I need to call the below method in Managed C++ (C++/CLI)
in which i want to pass the above data contact.

ClientSideWrapper.ClientInterface iClient = new ClientSideWrapper.ClientInterface();

iClient.sendMessage(handle,subscriptionData);


I need to create a method in Managed C++ (C++/CLI) , so that i can pass that datacontract (details) from C# to Managed C++ code and do the required processing.


But it seems Managed C++ will not take datacontract as i am getting the below error:
with this function in Manged C++ .


EXPORT_VOID sendMessage(handle_t binding,DataContracts::NotificationDataContract^ dc);


error C3395: 'sendMessage' : __declspec(dllexport) cannot be applied to a function with the __clrcall calling convention


Please let me know how to handle this scenario.

Appreciate your help.

Thanks,
Sudhakar