1. Through the cookie, because it can operate both on the server side, you can operate on the client.
But the disadvantage is not safe, and sometimes the client will disable the cookie due to security issues!
example:
The following is the HTML code for the parent page.
<% @ Page language = "vb" autoeventwireup = "false" codebehind = "main.aspx.vb" inherits = "zero.main"%>
main </ title> <meta name =" generator "content =" Microsoft Visual Studio .NET 7.1> <meta name = "code_language" content = "Visual Basic .NET 7.1 "> <meta name =" vs_defaultClientScript "content =" JavaScript "> <meta name =" vs_targetSchema "content =" http://schemas.microsoft.com/intellisense/ie5 "> <script language =" javascript "charset =" GB2312> Function searchValue () {var sql = "select * from companyJob"; setCookie ("Sendsql", SQL); var URL = "child.aspx"; window.open (URL, '_ blank');} Function setCookie (Name, Value) {document.cookie = Name "=" value;} </ script> </ head> <body ms_positioning = "gridlayout> <form id =" form1 "method =" post "runat =" Server "> <input id =" hidden1 "style =" z-index: 101; left: 8px; position: absolute; top: 8px "type =" hidden "name =" hidden1 "runat =" SE RVER "> <input style =" Z-Index: 102; Left: 96px; position: absolute; top: 144px "Type =" οnclick = "searchValue ();" value = "open" id = "button1" Name = "Button1"> <asp: button id = "Button2" style = "</p>
<p>Z-Index: 103; Left: 256px; Position: Absolute; Top: 152px "Runat =" Server "text =" button "> </ ask: button> </ form> </ body> </ html> child page [ Subpages]</p>
<p><% @ Page language = "vb" autoeventwireup = "false" codebehind = "child.aspx.vb" inherits = "zero.child"%> <! Doctype html public "- // w3c // DTD HTML 4.0 Transitional // En "> <html> <head> <title> child </ title> <meta name =" generator "content =" Microsoft Visual Studio .NET 7.1> <meta name = "code_language" content = "Visual Basic .NET 7.1 "> <meta name =" vs_defaultClientScript "content =" JavaScript "> <meta name =" vs_targetSchema "content =" http://schemas.microsoft.com/intellisense/ie5 "> <script language = javascript> function getv () {Alert ("Hidden1"); Document.all ("Hidden1"). Value = Document.Forms ("Hidden1");} </ script> </ head> <body ms_positioning = "gridlayout"> <form id = "form1" method = "post" runat = "server"> <input style = "z-index: 101; left: 8px; position: absolute; top: 8px" type = "ad =" hidden1 "Name =" hidden1 "runat =" server "> </ font> </ form> </ body> </ html></p>
<p>.vb file</p>
<p>If Not IsPostBack Then 'Response.Write (Request.Form ( "Hidden1")) Dim cookie As HttpCookie = Request.Cookies ( "SendSql") If Not cookie Is Nothing Then Response.Write (cookie.Value) End If End If2. Is the method of thinking about the big brother</p>
<p>Add a non-RUNAT = Server's FORM form to submit the value of the hidden control to the subpage</p>
<p><form method = "POST" target = "_ blank" id = "form2"> <input type = hidden name = "query"> </ form></p>
<p><script language = "javascript"> Function searchValue () {var sql = "select * from companyjob"; document.all.form2.query.Value = SQL; Document.All.form2.action = "child.aspx"; document .all.form2.submit ();} </ script></p>
<p>Backstage code (.vb)</p>
<p>Write in the Page_Load event</p>
<p>Response.write (Request.form ("Query"))</p></div><div class="text-center mt-3 text-grey">
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var debug = DEBUG = 0;
var url_rewrite_on = 1;
var url_path = './';
var forumarr = {"1":"Tech"};
var fid = 1;
var uid = 0;
var gid = 0;
xn.options.water_image_url = 'view/img/water-small.png';
</script><script src="view/js/wellcms.js?2.2.0"></script><a class="scroll-to-top rounded" href="javascript:void(0);"><i class="icon-angle-up"></i></a><a class="scroll-to-bottom rounded" href="javascript:void(0);" style="display: inline;"><i class="icon-angle-down"></i></a></body></html><script>
var forum_url = 'list-1.html';
var safe_token = 'alvydMOwoJdoD2kVSumc4AUSl0qXdLeQc_2F35Y3LOzo9LYn6oadPMXsNmuestitlG7_2FZ5QyHNShETwVandWTYnA_3D_3D';
var body = $('body');
body.on('submit', '#form', function() {
var jthis = $(this);
var jsubmit = jthis.find('#submit');
jthis.reset();
jsubmit.button('loading');
var postdata = jthis.serializeObject();
$.xpost(jthis.attr('action'), postdata, function(code, message) {
if(code == 0) {
location.reload();
} else {
$.alert(message);
jsubmit.button('reset');
}
});
return false;
});
function resize_image() {
var jmessagelist = $('div.message');
var first_width = jmessagelist.width();
jmessagelist.each(function() {
var jdiv = $(this);
var maxwidth = jdiv.attr('isfirst') ? first_width : jdiv.width();
var jmessage_width = Math.min(jdiv.width(), maxwidth);
jdiv.find('img, embed, iframe, video').each(function() {
var jimg = $(this);
var img_width = this.org_width;
var img_height = this.org_height;
if(!img_width) {
var img_width = jimg.attr('width');
var img_height = jimg.attr('height');
this.org_width = img_width;
this.org_height = img_height;
}
if(img_width > jmessage_width) {
if(this.tagName == 'IMG') {
jimg.width(jmessage_width);
jimg.css('height', 'auto');
jimg.css('cursor', 'pointer');
jimg.on('click', function() {
});
} else {
jimg.width(jmessage_width);
var height = (img_height / img_width) * jimg.width();
jimg.height(height);
}
}
});
});
}
function resize_table() {
$('div.message').each(function() {
var jdiv = $(this);
jdiv.find('table').addClass('table').wrap('<div class="table-responsive"></div>');
});
}
$(function() {
resize_image();
resize_table();
$(window).on('resize', resize_image);
});
var jmessage = $('#message');
jmessage.on('focus', function() {if(jmessage.t) { clearTimeout(jmessage.t); jmessage.t = null; } jmessage.css('height', '6rem'); });
jmessage.on('blur', function() {jmessage.t = setTimeout(function() { jmessage.css('height', '2.5rem');}, 1000); });
$('#nav li[data-active="fid-1"]').addClass('active');
</script>
