Visual Studio 2010 Express上的Web服务：如何获取WSDL地址？

Question

从Visual Studio 2010 Express中开发的.NET Web服务开始，我如何知道自己为自己服务的WSDL的URL有自己的Web服务？

例如，如果我有一些样板代码

[WebService]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
public class MyWS : System.Web.Services.WebService
{
  [WebMethod(Description="Something like: http://localhost:12345/MyWS.asmx?WSDL")]
  public int RegisterInDB(string ConnectionString)
  {
    string urlWSDL = "HOW_TO_GET_WEBSERVICE'S_OWN_WSDL_URL_HERE ???";
    int NewRowId;
    // 1) Connect to DB with ConnectionString
    // 2) INSERT into table some info, including urlWSDL
    // 3) Get Id of INSERT'ed row.
    return NewRowId;
  }
}

哪个方法/属性在运行时提供WSDL？