使用XML Web Service返回DataTable对象的问题

'Visual Basic
    <WebMethod()> Function GiveMeADataTable() As System.Data.DataTable
        Dim conn As New System.Data.SqlClient.SqlConnection("Server=YourServer;Initial Catalog=pubs;Integrated Security=SSPI;")
        Dim ds As New System.Data.DataSet()
        Dim adapter As New System.Data.SqlClient.SqlDataAdapter()
        adapter.SelectCommand = New System.Data.SqlClient.SqlCommand("Select * From Authors", conn)
        adapter.Fill(ds, "Authors")
        Return ds.Tables("Authors")
    End Function
					

//Visual C#
   [WebMethod]
   public System.Data.DataTable GiveMeADataTable()
   {
        System.Data.SqlClient.SqlConnection conn = new System.Data.SqlClient.SqlConnection("Server=YourServer;Initial Catalog=pubs;Integrated Security=SSPI;");
      System.Data.DataSet ds = new System.Data.DataSet();
        System.Data.SqlClient.SqlDataAdapter adapter = new System.Data.SqlClient.SqlDataAdapter();
        adapter.SelectCommand = new System.Data.SqlClient.SqlCommand("Select * From Authors", conn);
        adapter.Fill(ds, "Authors");
      return ds.Tables["Authors"];
   }    

					

/**Visual J# */ 
	/** @attribute WebMethod() */ 
	public System.Data.DataTable GiveMeADataTable()
	{
		System.Data.SqlClient.SqlConnection conn = new System.Data.SqlClient.SqlConnection("Server=YourServer;Initial Catalog=pubs;Integrated Security=SSPI;");
		System.Data.DataSet ds = new System.Data.DataSet();
		System.Data.SqlClient.SqlDataAdapter adapter = new System.Data.SqlClient.SqlDataAdapter();
		adapter.set_SelectCommand(new System.Data.SqlClient.SqlCommand("Select * From Authors", conn));
		adapter.Fill(ds, "Authors");
		System.Data.DataTableCollection dtc = ds.get_Tables();
		return dtc.get_Item("Authors");
	} 
					

'Visual Basic
    <WebMethod()> Function GiveMeADataSet() As System.Data.DataSet
        Dim conn As New System.Data.SqlClient.SqlConnection("Server=YourServer;Initial Catalog=pubs;Integrated Security=SSPI;")
        Dim ds As New System.Data.DataSet()
        Dim adapter As New System.Data.SqlClient.SqlDataAdapter()
        adapter.SelectCommand = New System.Data.SqlClient.SqlCommand("Select * From Authors", conn)
        adapter.Fill(ds, "Authors")
        Return ds
    End Function
					

//Visual C#
   [WebMethod]
   public System.Data.DataSet GiveMeADataSet()
   {
        System.Data.SqlClient.SqlConnection conn = new System.Data.SqlClient.SqlConnection("Server=YourServer;Initial Catalog=pubs;Integrated Security=SSPI;");
      System.Data.DataSet ds = new System.Data.DataSet();
        System.Data.SqlClient.SqlDataAdapter adapter = new System.Data.SqlClient.SqlDataAdapter();
        adapter.SelectCommand = new System.Data.SqlClient.SqlCommand("Select * From Authors", conn);
        adapter.Fill(ds, "Authors");
      return ds;
   }

					

/**Visual J# */ 
/** @attribute WebMethod() */ 
	public System.Data.DataSet GiveMeADataSet()
	{
		System.Data.SqlClient.SqlConnection conn = new System.Data.SqlClient.SqlConnection("Server=YourServer;Initial Catalog=pubs;Integrated Security=SSPI;");
		System.Data.DataSet ds = new System.Data.DataSet();
		System.Data.SqlClient.SqlDataAdapter adapter = new System.Data.SqlClient.SqlDataAdapter();
		adapter.set_SelectCommand(new System.Data.SqlClient.SqlCommand("Select * From Authors", conn));
		adapter.Fill(ds, "Authors");
		return ds;
	}