What Would be the Signature for Property in wcf

Faisal Ansari

15y1.7k

hello guys how r u ?

my question is that, i am creating the wcf application, in that application i am using property instead of methods in the IService interface so i am using [OperationContract] as signature for property so there is an error comes "[OperationContract] is only use for methods" so what would be the signature for property ???

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thanks.

6 Replies

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Vulpes15y ago
I thought I'd have a look in the MSDN documentation for confirmation that you can't use properties when creating a WCF service contract. I could't find anything but I did find this thread which seems conclusive:

http://stackoverflow.com/questions/824268/do-wcf-services-expose-properties
0
Vulpes15y ago
I'm no expert on WCF but it looks like that's the case.

As you can see from the MSDN documentation (http://msdn.microsoft.com/en-us/library/system.servicemodel.operationcontractattribute.aspx), the OperationContract attribute can only target methods and not properties. The same applies to the OperationBehavior attribute.

Fortunately, properties are just methods 'under the hood' anyway so it's not difficult to work around this apparent limitation.
0
Faisal Ansari15y ago
Hi Vulpes,
it means that, there is no any usage of property in wcf application right ?
0
Vulpes15y ago
As the OperationContract attribute can only be applied to a method, I'd use two 'get' and 'set' methods in your interface rather than a property:

IService1.cs
-------------

[ServiceContract]
public interface IService1
{
[OperationContract]
string GetName();

[OperationContract]
void SetName(string name);
}

Service1.svc.cs
---------------

[ServiceBehavior]
public class Service1 : IService1
{
private string name;

[OperationBehavior]
public string GetName()
{
return name;
}

[OperationBehavior]
public void SetName(string name)
{
this.name = name;
}
}
0
Faisal Ansari15y ago
i am using like this,

IService1.cs
-------------

[ServiceContract]
public interface IService1
{
        [OperationContract]
        string Name { get; set; }
}

Service1.svc.cs
---------------

public class Service1 : IService1
{
          public string name;
        public string Name
        {
                 get
                {
                    return name;
                }
                set
                {
                    name = value;
                }
        }
}

i am doing like this ... but same error occuring
0
Hemant Kumar15y ago
Hi Faisal,
You need to give the Signature of a Property in WCF like this
[DataContract]
public class Request
{
string name;
[DataMember]
public string Name
{
get { return name; }
set { name = value; }
}
}

I would recommend you to refer this link for begginers which are excellent for freshers.
http://www.codeproject.com/KB/WCF/first_WCF_Service.aspx
http://wcftutorial.net/

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