用WebService和javascript实例类似ajax的功能

using System.Diagnostics;

using System.Web;

using System.Web.Services;

using System.Configuration;

namespace Ch2

{

    /// <summary>

    /// Summary description for SearchTitles.

    /// </summary>

    public class SearchTitles : System.Web.Services.WebService

    {

        public SearchTitles()

        {

            //CODEGEN: This call is required by the ASP.NET Web Services Designer

            InitializeComponent();

        }

        private System.Data.SqlClient.SqlConnection sqlConnection1;