What is the method for initializing a C# webservice?

In C#, the initialization method for a WebService is to use the WebMethod attribute to mark the methods that should be exposed. Adding the WebMethod attribute to a method will make it accessible as a WebService method.

For example:

using System;
using System.Web.Services;

[WebService(Namespace = "http://example.com/")]
public class MyWebService : WebService
{
    [WebMethod]
    public string HelloWorld()
    {
        return "Hello World";
    }
}

In the example above, we defined a WebService class named MyWebService and added a public method called HelloWorld. This method is marked as a WebService method using the WebMethod attribute. When accessing the URL of the WebService in a browser, you can call the HelloWorld method and receive the “Hello World” string as a response.