In my wcf service i have 10 methods i want to give my client to access 5 methods only.

Bear in mind that you expose methods via a contract. If you do not want people to have access to 5 of those methods, just expose a contract that has the remaining 5 methods and use that instead.

You can have exactly the same code in place implementing the contracts, as long as the two interfaces are similar enough that they satisfy your needs. In other words, as long as the signatures/names of the methods are the same in the two interfaces, the same concrete class can be used.

Hi,

Just to add to Hanlon's explanation....

IExternal
{
//5 methods declaration
}

IInternal
{
//5 Internal methods declaration
}

Service : IExternal,IInternal
{

}

Expose the IExternal....


I hope this helps!.

Regards,
-Vinayak