【IT168技术文档】

  客户端调用服务器端方法：

 <script language=javascript type="text/javascript">
2    function GetCurrentTime()
3    {
4        PageMethods.GetCurrentTime('NewEgg ajax training',CheckIsSuccess);
5    }
6    function CheckIsSuccess(result)
7    {
8        alert(result);
9    }
10    </script>
11
12    <input id="Button1" type="button" value="客户端控件调用服务器端的方法" onclick="GetCurrentTime()" />

[WebMethod]
2        public static string GetCurrentTime(string str)
3        {
4            return str + DateTime.Now.ToLongTimeString();
5        }

1 <asp:ScriptManager ID="ScriptManager1" runat="server">
2            <Services>
3                <asp:ServiceReference Path="AjaxTestWebService.asmx" InlineScript="true" />
4            </Services>
5        </asp:ScriptManager>
6        <br />
7        这个就是用客户端的方法去调用WebService里面的方法&nbsp;<div>
8        <input id="Button1" type="button" value="点击调用WebService里边的方法产生一个随机数" onclick="getRandom()" />
9
10        <script language="javascript" type="text/javascript">
11            function getRandom()
12            {
13                Ajax_Dear.AjaxTestWebService.GetRandom(getR);
14            }
15            function getR(result)
16            {
17                alert(result);
18            }
19        </script>

 1 [WebService(Namespace = "http://tempuri.org/")]
2    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
3    [ScriptService]
4    public class AjaxTestWebService : System.Web.Services.WebService
5    {
6
7        [WebMethod]
8        public string HelloWorld()
9        {
10            return "Hello World";
11        }
12        [WebMethod]
13        public int GetRandom()
14        {
15            return new Random(DateTime.Now.Millisecond).Next();
16        }
17    }