ajax请求添加客户端事件的激发顺序和JSON 相关介绍

ajax请求添加客户端事件的激发顺序
     <form id="form1" runat="server">
    <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
    <div>
   
        <%=DateTime.Now.ToString() %>
        <hr/>
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                <%=DateTime.Now.ToString() %>
                <hr/>
                <asp:Button ID="Button1" runat="server" Text="Button" />
            </ContentTemplate>
        </asp:UpdatePanel>
       <script  type="text/javascript" language="javascript">
          Sys.WebForms.PageRequestManager.getInstance().add_initializeRequest(
              function(sender, e)
              {
                 alert("add_initializeRequest");  
              }
          );
 
          Sys.WebForms.PageRequestManager.getInstance().add_endRequest(
              function(sender,e)
              {
                  alert("add_endRequest");
              }
          );
         
         
          Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(
              function(sender,e)
              {
                  alert("add_beginRequest");
              }
          );
         
         
          Sys.WebForms.PageRequestManager.getInstance().add_pageLoaded(
              function(sender,e)
              {
                  alert("add_pageLoaded");
              }
          );
         
          Sys.WebForms.PageRequestManager.getInstance().add_pageLoading(
              function(sender,e)
              {
                  alert("add_pageLoading");
              }
          );
 
  </script>
 
    </form>

JSON

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>无标题页</title>
    <script type="text/javascript">
    function show()
    {
       var UserList = [
                       {UserID:01, "Name":{"FirstName":"Truly","LastName":"Zhu"}, Email:"zhuleipro@hotmail.com"},
                       {UserID:02, "Name":{"FirstName":"Jeffrey","LastName":"Richter"}, Email:"xxx@xxx.com"},
                       {UserID:03, "Name":{"FirstName":"Scott","LastName":"Gu"}, Email:"xxx2@xxx2.com"}
                      ];
                     
        alert(UserList[1]["Name"].FirstName);
        alert(UserList[2].Email);

    }
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
   
        <input id="Button1" type="button" value="button" onclick="show()" /></div>
    </form>
</body>
</html>
运行结果：当你点击按钮的时候 弹出：Truly 在弹出：xxx@xxx.com