将类对象传递给WebService

Question

How can I pass a class object 'obj' of the class ' BL_Customer' from my Web application to a function 'Insert()' in my Webservice (ASMX) and then access the properties of that object in the Webservice?. I have included my remote webservice by 'Add WebReference' facility. I have included 'using WebRererence;' namespace also. Any help will be appreciated.

This is my BL_Customer class in Business Layer:

public class BL_Customer
{
    public BL_Customer()
    {

    }  
    string c_Cust_Name = string.Empty;    
    string c_Mobile_no = string.Empty;    
    public string Cust_Name
    {
        get { return c_Cust_Name; }
        set { c_Cust_Name = value; }
    }  
    public string Mobile_no
    {
        get { return c_Mobile_no; }
        set { c_Mobile_no = value; }
    } 

}

This is my Data Access Layer:

public class DAL_Customer
{
    public SqlConnection con = new SqlConnection();
    WebReference.Service objWEB = new WebReference.Service();  //objWEB -> Webservice object
    Connection c = new Connection(); 
    public DAL_Customer()
    {
    }
    public int Customer_Insert(BL_Customer obj)
    {
      ---------
      ---------
        return objWEB.Insert(obj);  // Insert() is a function in my remote webservice 
    }
}

This is my webservice:

public class Service : System.Web.Services.WebService
{   
   public Service () {
    }

    [WebMethod]
    public string insert(**What should be here?**)
    {
        -----
        -----

    }
}

Regards, David

Answer 1

Depending on the technology you are using to build your web service there might be different ways to achieve this. If you are using the deprecated now ASMX web services you would add a method that will take as parameter the class you need:

[WebMethod]
public void DoSomething(Person p)
{
    ...
}

If you are using WCF which is the recommended technology to build web services in .NET you would design a service contract:

[ServiceContract]
public interface IMyService
{
    void DoSomething(Person p);
}

In both cases in order to consume the service you will generate a strongly typed proxy on the client. Once again the recommended is to use Add Service Reference dialog in Visual Studio to generate a strongly typed proxy by pointing it to the WSDL of the web service. Then you will invoke the method:

using (var client = new MyServiceClient())
{
    Person p = new Person
    {
        FirstName = "john",
        LastName = "smith"
    };
    client.DoSomething(p);
}

And if your client is built on pre-.NET 3.0 you will need to use the Add Web Reference dialog in Visual Studio to generate the client proxy.

Answer 2

If you define class 'Bill' in your web service you will be able to use it both in you web app and in web service. I'm not sure if there is a way to use classes that were defined in app on web service but I think it's not.