aspx中添加:<asp:ScriptManager id="ScriptManagerProxy1" runat="server">
    <Services>
        <asp:ServiceReference Path="../Common/MyWebService.asmx"></asp:ServiceReference>
    </Services>
</asp:ScriptManager> 客户端javaScript
<script ...>
MyWebService.方法(string parameter,OnComplete,OnTimeOut,OnError)OnComplete(result)
{
    //result is return value;
}
OnTimeOut{}
OnError{}
</script>

解决方案 »

  1.   

    aspx中添加:<asp:ScriptManager id="ScriptManagerProxy1" runat="server">
        <Services>
            <asp:ServiceReference Path="../Common/MyWebService.asmx"></asp:ServiceReference>
        </Services>
    </asp:ScriptManager> 客户端javaScript
    <script ...>
    MyWebService.方法(string parameter,OnComplete,OnTimeOut,OnError)OnComplete(result)
    {
        //result is return value;
    }
    OnTimeOut{}
    OnError{}
    </script>
      

  2.   

    aspx中添加:<asp:ScriptManager id="ScriptManagerProxy1" runat="server">
        <Services>
            <asp:ServiceReference Path="../Common/MyWebService.asmx"></asp:ServiceReference>
        </Services>
    </asp:ScriptManager> 客户端javaScript
    <script ...>
    MyWebService.方法(string parameter,OnComplete,OnTimeOut,OnError)OnComplete(result)
    {
        //result is return value;
    }
    OnTimeOut{}
    OnError{}
    </script>