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Hi Experts, 
 
I have a project with contains my interface ( ITest ). 
 
public interface ITest 
{ 
void myfunction(string data); &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
} 
 
In my webservices project (second one), I build the service1.asmx like this: 
 
[WebMethod] 
public string HelloWorld(ITest test) 
{ 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return &quot;Hello World&quot;; 
} 
 
When I add a webreference to my last project to test my webservice service1.asmx, Visual Studio throw me the exception: 
Unable to serialize the interface. 
 
Thanks in advance for helping me to solve my problem. 

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</div>

Hi Experts,

I have a project with contains my interface ( ITest ).

public interface ITest
{
void myfunction(string data);		
}

In my webservices project (second one), I build the service1.asmx like this:

[WebMethod]
public string HelloWorld(ITest test)
{
	return "Hello World";
}

When I add a webreference to my last project to test my webservice service1.asmx, Visual Studio throw me the exception:
Unable to serialize the interface.

Thanks in advance for helping me to solve my problem.


Webservice : Unable to serialize the interface

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).