using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Web;
using System.Web.Services;

namespace MioService
{
public class Prova : System.Web.Services.WebService
{
public Prova()
{
InitializeComponent();
}
[WebMethod]
public DataSet GetProva() 
{
DataSet ds = new DataSet();
// Riempi il DataSet con il tuo codice
// ...
// Poi ritorni il DataSet
return ds;
}
}
}