Document documentelement scrolltop

Author: s | 2025-04-23

To get the scroll position of the document, you can use the pageXOffset, pageYOffset properties of the window object or the scrollLeft and scrollTop properties of the documentElement object. Here is an example: document. documentElement. scrollTop = document. body. scrollTop = 0; 看起来简洁多了，是吧。 不过我发现上面两个document的属性都好陌生啊，document.documentElement是什么，document.body又是什么？

$ (window).scrollTop () vs. $ (document).scrollTop () - Stack

The Element.scrollTop property gets or sets the number of pixels that an element's content is scrolled vertically. An element's scrollTop value is a measurement of the distance from the element's top to its topmost visible content. When an element's content does not generate a vertical scrollbar, then its scrollTop value is 0. scrollTop can be set to any integer value, with certain caveats: If the element can't be scrolled (e.g. it has no overflow or if the element has a property of "non-scrollable"), scrollTop is 0. scrollTop doesn't respond to negative values; instead, it sets itself back to 0. If set to a value greater than the maximum available for the element, scrollTop settles itself to the maximum value. When scrollTop is used on the root element (the element), the scrollY of the window is returned. This is a special case of scrollTop. Warning: On systems using display scaling, scrollTop may give you a decimal value.A number.In this example, try scrolling the inner container with the dashed border, and see how the value of scrollTop changes. HTML div id="container"> div id="scroller"> p> Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small unregarded yellow sun. Orbiting this at a distance of roughly ninety-two million miles is an utterly insignificant little blue green planet whose ape-descended life forms are so amazingly primitive that they still think digital watches are a pretty neat idea. p> div>div>div id="output">scrollTop: 0div> CSS #scroller { overflow: scroll; height: 150px; width: 150px; border: 5px dashed orange;}#output { padding: 1rem 0;} JavaScript const scroller = document.querySelector("#scroller");const output = document.querySelector("#output");scroller.addEventListener("scroll", (event) => { output.textContent = `scrollTop: ${scroller.scrollTop}`;}); Result Asked By 7060 points N/A Posted on - 05/07/2012 How to manually download the latest definition updates for Microsoft Security Essentials. If you encounter problems while trying to install definition updates for Microsoft Security Essentials, for computers 32-bit. Best Answer by jere366 jQuery(document).ready(function ($) { var closeBtn = false; var topOfOthPage = $("#best-enter").offset().top; var topOfOthDiv = $("#best-start").offset().top; var bottomOfOthDiv = $("#best-end").offset().top; var bottomOfOthPage = $("#best-exit").offset().top; $("#best-close-btn").on("click", function(event) { event.preventDefault(); $(".best-answer-container").removeClass('best-answer-hide'); $(".best-answer-container").addClass('best-answer-hide'); closeBtn = true; }); $(window).scroll(function () { if (closeBtn === false) { var half_height = $(window).height() / 2; if ($(window).scrollTop() + Math.round(half_height) > topOfOthPage) { $(".best-answer-container").removeClass('best-answer-hide'); } else { $(".best-answer-container").addClass('best-answer-hide'); } if ($(window).scrollTop() + Math.round(half_height) > topOfOthDiv) { $(".best-answer-container").addClass('best-answer-hide'); } if ($(window).scrollTop() + Math.round(half_height) > bottomOfOthDiv) { $(".best-answer-container").removeClass('best-answer-hide'); } if ($(window).scrollTop() + Math.round(half_height) > bottomOfOthPage) { $(".best-answer-container").addClass('best-answer-hide'); } } }); }); --> Hello there! When you download the Microsoft Security Essentials, you have to first know simple important stuffs. First, check if you are running a Windows XP, Windows Vista, or Windows 7 with a 32-bit or a 64-bit operating environment. Remember that you have to be logged on in Windows as Administrator. Go to this link to know how to manually download the Microsoft Security Essentials depending on the bit of your computer system. After downloading the file, click Run to install the update file immediately or you may also click Save to save file in your computer. In the link stated above, it can help you how to save files using Windows XP, Windows Vista, or Windows 7. Hope it helped. Thanks. Cesar Answered By jere366 0 points N/A #83399 Manually download the latest definition updates for Microsoft Security Essentials Hi, First of all, you need to ensure you are logged in as administrator; After logon, go to start-control panel to open the MSE settings. Once you open the control panel in MSE settings, go to update settings and select manual update. After selecting the manual update you can go to this link: And then click on this website After downloading the application, you can run it and install. When the update file runs, a file extraction dialog box appears. The dialog box indicates that the definition update is installing. After the file extraction dialog box closes, you can verify that the virus and spyware definitions have been updated. To do this, open Microsoft Security Essentials, click Update, and then examine the virus and spyware definitions status. Manually download the latest definition updates for Microsoft Security Essentials Microsoft Security Essentials or MSE, by default, update its virus signature database automatically when your computer is connected to the internet. But if your machine is disconnected from the internet, you are still protected against viruses that can be identified

Document: documentElement property - Web APIs

Microsoft's AJAX site. But in a nutshell, two of the client-side script libraries Microsoft has exposed via the Script Manager, i.e., Sys.WebForms.PageRequestManager beginRequest Event and Sys.WebForms.PageRequestManager endRequest Event, provide the ability for us to be notified just before the UpdatePanel charges off to the server to be rewritten, and just as soon as it has returned to the client.By hooking into these two events, we can use a little script to put the scrolltop on any control (ASP or HTML) back where it was before the panel was dragged off to the server. Put this script after the end tag of the UpdatePanel - it has to hold onto the value of the scrolltop variable not get caught up in the refresh cycle.var scrollTop;Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(BeginScript);Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndScript);function BeginScript(sender, args) { var elemnt = document.getElementById('pnlOne'); scrollTop=elemnt.scrollTop;}. . .Round trip takes place:function EndScript(sender, args){ var elemnt = document.getElementById('pnlOne'); elemnt.scrollTop = scrollTop;} And, that's all there is to it. So thanks for reading, and I wish you all a good – Say what?You have more than one Panel that needs to maintain scrolltop? That's easy: write an additional pair of scripts for each Panel.OhhhhhhhhKay. No need to get huffy. . .since the number of panels may change as your app remains in production, let's put all the panels' IDs and their scrolltops into arrays. Now, all you have to do is add any new ID to the first array.Note that at one point, we test to make sure that the Panel exists and is visible. This handles controls that have had their visibility turned off."text/javascript">var pnlArray=['pnlQuarters', 'pnlEngines'];var stArray= new Array();Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(BeginScript);Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndScript);function BeginScript(sender, args) { for (i = 0; ivar elemn = document.getElementById(pnlArray[i]); if (null != elemn) { stArray[i]=elemn.scrollTop; }}. . .Round trip takes place:function EndScript(sender, args){ for (i = 0; ivar elemn = document.getElementById(pnlArray[i]); if (null != elemn) { elemn.scrollTop = stArray[i]; } }} You might also be interested to know that the EndRequest is the absolute last event you can hook into during the request lifecycle; if you would like to be notified earlier - before the content is rendered, you can register with the Sys.WebForms.PageRequestManager.PageLoading. To get the scroll position of the document, you can use the pageXOffset, pageYOffset properties of the window object or the scrollLeft and scrollTop properties of the documentElement object. Here is an example:

Document: documentElement プロパティ - Web API

最近の Web サービスでよくある「下までスクロールしたら次のコンテンツを読み込む(オートページャライズ)」を実装するためには、当然ですが「下までスクロールしたかどうか」を検出する必要があります。これが簡単そうに見えて意外と面倒臭く、自分も毎回思い出すのに時間がかかってしまいます。御託はいいから結論を先に言えこれでよさそうfunction getScrollBottom() { var body = window.document.body; var html = window.document.documentElement; var scrollTop = body.scrollTop || html.scrollTop; return html.scrollHeight - html.clientHeight - scrollTop;}以下、解説ですどんな値が取得できるかまず、使いそうな要素document.body body 要素document.documentElement 文書全体を表す要素 (html要素)ややこしいので、これ以降では body と書いてあったら document.body, html と書いてあったら document.documentElement のことだと思ってください。次に、使いそうなプロパティscrollTop 要素内のスクロール量clientHeight 要素の高さscrollHeight 要素内のスクロールできる高さclientHeight と scrollHeight は何が違うんじゃ、って話ですが、要素の高さを超えるくらい要素の内容が多い場合、要素そのものの高さが clientHeight で要素の内容の高さが scrollHeight になります。しかし僕はあまり頭がよくなく、「そんなこと言われてもよくわからん、直感的にわかるようにして!!!」という感じだったので、こういうツールを作りました。 body の高さを変えてみたりすることで、それぞれの値がどう変化するのかがわかると思います。スクロール量を取得するscrollTop には罠があって、ページ全体のスクロール量を取得したい場合は ブラウザによって取得方法が違います。WebKit 系 ( Safari, Chrome 等) や Edge では body.scrollTopIE, Firefox, Opera などでは html.scrollTopブラウザの対応していない方法で取得しようとする(例えば Firefox の document.body.scrollTop)と、必ず 0 が返ってきます。そのため、正しくスクロール量を取得するためにはvar body = document.body;var html = document.documentElement;var scrollTop = body.scrollTop || html.scrollTop;こうする必要があります。ちなみに、scrollTop だけでなく body.scrollHeight もブラウザによって値が変わるのであまり使わないほうがよさそうです。計算する必要な値が取得できたので、あとは計算するだけです。ここで気をつけないといけないのは、コンテンツ量によって body の高さが変わるので body の高さが画面のよりも長い場合と短い場合の両方に対応できるようにしたほうがいいということです。body が長い場合body が長いとき、「ドキュメント全体の高さ」は body.clientHeight または html.scrollHeight で取得することができます。つまり「下からのスクロール位置」はscrollBottom = (ドキュメント全体の高さ) - scrollTop - html.clientHeightこのように求めることができます。body が短い場合body が短いときは、そもそもスクロールしないので「下からのスクロール位置」は常に 0 であってほしいと思います。bodyが長いときの計算式scrollBottom = (ドキュメント全体の高さ) - scrollTop - html.clientHeight この式に当てはめると、期待する scrollBottom は 0 で scrollTop はこの場合は常に 0 なので、(ドキュメント全体の高さ) == html.clientHeight のときに期待する値が得られそうです。(ドキュメント全体の高さ) は body.clientHeight と html.scrollHeight のいずれかだったので、このうち (ドキュメント全体の高さ) == html.clientHeight を満たすのは html.scrollHeight のみとなります。ということで、ドキュメント全体の高さを取得するには html.scrollHeight を使うと良さそうです。つまり、scrollBottom = html.scrollHeight - scrollTop - html.clientHeightこれで「下からのスクロール位置」を求めることができそうです。これをちゃんとした JavaScript に直すと、冒頭に書いたコードになります。オマケvar scrollBottomEvent = window.document.createEvent('UIEvents');scrollBottomEvent.initUIEvent('scrollBottom', true, false, window, 1);window.document.addEventListener('scroll', function() { var body = window.document.body; var html = window.document.documentElement; var scrollTop = body.scrollTop || html.scrollTop; var scrollBottom = html.scrollHeight - html.clientHeight - scrollTop; if ( scrollBottom 0 ) { window.document.dispatchEvent( scrollBottomEvent ); }});こういうカスタムイベントを作っておくとdocument.addEventListener('scrollBottom', function() { // 下までスクロールしたときの処理});下までスクロールしたときのイベント処理がシンプルに書けて便利です。 Store Information Address Hamdan Street,Opposite Ahalia Hospital,Hamdan street- .Abu DhabiUnited Arab Emirates Contact Phone : 02 658 5916 Mobile : 501897761 Email : [email protected] Timings Sun10.00amto11.00pm Mon10.00amto11.00pm Tue10.00amto11.00pm Wed10.00amto11.00pm Thu10.00amto11.00pm Fri10.00amto11.00pm Sat10.00amto11.00pm TODAY'S GOLD RATE 335.50 AED Last Updated :17/03/2025 1:37 PM* Price may vary by city--> * Price may vary by city --> Services AvailableGold Polishing | Diamond Replacement | Gold ExchangeProducts AvailableGold Jewellery | Diamond Jewellery | Precious Jewellery | Uncut Jewellery | Platinum JewelleryStore Photo GalleryMesmerizing ambience & distinct jewellery that charms your collection-->Make an AppointmentNow make an appointment as per your preferences schedule and requirment in our storeStore LocationFind us in google map for easy navigationMr. Manikanda Das Chakkottil +X Press the '+' button to add to home screen. --> Press the '+' button to add to home screen. +X jQuery(document).ready(function(){jQuery("#our_stores_div").click(function() { jQuery('#our_stores_div').parent().toggleClass("our_stores_div_slid_tog");});jQuery.fn.center = function () { this.css("position","fixed"); this.css("top", Math.max(0, ((jQuery(window).height() - jQuery('#our_countries_div').outerHeight()) / 2) + jQuery(window).scrollTop()) + "px"); return this; } jQuery('.our_stores_slid').center(); jQuery(window).resize(function(){ jQuery('.our_stores_slid').center(); });});-->-->

HTML DOM Document documentElement Property - W3Schools

3 REPLIES 3 How can i get a licence number for the free triel desktop? Thanks for using QuickBooks Desktop (QBDT), @andreiasemedo10.Downloading QBDT free trial doesn't require a license number. You can use our software for free. This way, you'll know the ways of using the software before buying it. Here's an article you can check for more details in downloading our QBDT free trial: Download a trial of QuickBooks Desktop.I'm also adding this great resource that you can read for future reference. This link provides detailed information on how to download and activate our official QBDT software: Download QuickBooks Desktop.Tag me in if you have other concerns or questions. I'm always around to back you up. Keep safe and stay healthy. How can i get a licence number for the free triel desktop? I tried but it is not working without a license number and product number How can i get a licence number for the free triel desktop? Thanks for getting back to us Manbari, can we check which trial version you're downloading from the link above, Pro, Premier, or Premier Accountant? $(document).ready(function () { window.addEventListener('scroll', function () { var scrollPos = $(window).scrollTop(); if (scrollPos > 0) { $(".mainNav__wrapper").addClass("fixed-header"); } else { $(".mainNav__wrapper").removeClass("fixed-header"); } }); });-->

My scrollTop value is not working? scrollTop

Tennis Player)Birthdate: February 22, 1964Sun Sign: PiscesBirthplace: San Juan, Puerto RicoHeight: 5'7" (170 cm) 41 Jenniffer González(Politician)Birthdate: August 5, 1976Sun Sign: LeoBirthplace: San Juan, Puerto Rico 42 Marisol Malaret(Beauty pageant Winner, Model)Birthdate: October 13, 1949Sun Sign: LibraBirthplace: Utuado, Puerto RicoHeight: 5'8" (173 cm) 43 La India(Puerto Rican Singer and Songwriter )Birthdate: March 9, 1969Sun Sign: PiscesBirthplace: Río Piedras, Puerto RicoBirthdate: September 12, 1986Sun Sign: VirgoBirthplace: CorozalHeight: 5'9" (175 cm) 45 Nydia Velázquez(Politician)Birthdate: March 28, 1953Sun Sign: AriesBirthplace: Yabucoa, Puerto Rico 46 Noelia(Puerto Rican Singer, Entrepreneur, and Philanthropist)Birthdate: August 31, 1979Sun Sign: VirgoBirthplace: San Juan, Puerto RicoBirthdate: April 2, 1983Sun Sign: AriesBirthplace: San Juan, Puerto Rico 48 iLe(Puerto Rican Singer and Composer)Birthdate: April 28, 1989Sun Sign: TaurusBirthplace: Hato Rey, San Juan, Puerto Rico 49 Lolita Lebrón(Nationalist)Birthdate: November 19, 1919Sun Sign: ScorpioBirthplace: Lares, Puerto RicoDied: August 1, 2009Birthdate: October 16, 1996Sun Sign: LibraBirthplace: San Juan, Puerto RicoHeight: 5'8" (173 cm) -->jQuery(document).ready((function(o){var c=0;o(window).scroll((function(){o(window).scrollTop()>o("#main-mp-content").offset().top&&(0==c&&o.ajax({url:'//www.thefamouspeople.com/inc/sticky_header_combi.html',type:"POST",success:function(c){o("#combi_sticky").append(c)},error:function(){}}),c++)}))}));-->. To get the scroll position of the document, you can use the pageXOffset, pageYOffset properties of the window object or the scrollLeft and scrollTop properties of the documentElement object. Here is an example: document. documentElement. scrollTop = document. body. scrollTop = 0; 看起来简洁多了，是吧。 不过我发现上面两个document的属性都好陌生啊，document.documentElement是什么，document.body又是什么？

$ (document).scrollTop () always returns 0 - Stack Overflow

Wire up a few events, receive quick functionality, then move on to the next work item makes your software development easier. Those functionalities, however, do not guarantee that the software created is well structured, easily extensible, and unit testable. MVVM resolves those issues. Telerik UI for WPF fully supports MVVM, allowing you to create reliable, well-structured and easily maintainable applications. Coded UI Tests All components in Telerik UI for WPF support Level 1 Coded UI tests and most of the controls already support Level 3 Coded UI tests, making Telerik UI Controls easily maintainable within any test-driven development process. Touch Support Drag and Drop Support Many Telerik UI for WPF controls come with built-in drag and drop support. The suite also provides a DragDropManager which easily integrates within your solution to implement any drag and drop scenario. Next: > All $(".Sscreen").on("click",function(e){e.preventDefault(); $("html, body").animate({scrollTop: $(".Section--grey1").offset().top}, 400);});--> -->Sample Screenshot Popular Solution $(".Pricng").on("click",function(e){e.preventDefault(); $("html, body").animate({scrollTop: $(".Section--black").offset().top}, 400);});--> Pricing & Purchase Single developer license (plus TIFF, XPS,JPEG, PNG plugins) USD 528 Team developer license (plus TIFF, XPS,JPEG, PNG plugins) USD 1098 Site wide license (plus TIFF, XPS,JPEG, PNG plugins) USD 1580 $(".WnS").on("click",function(e){e.preventDefault(); $("html, body").animate({scrollTop: $(".WhatsnewSection").offset().top}, 400);});--> What's New Version 4.0 Released (2 October, 2020)added support Merge PDF Files, Split PDF files, Delete Page of PDF files, Get the total page of PDF file, Cover any unwanted page contentMerge PDF Files with bookmarks,Rotate specific page of PDF file, Rotate All pages of PDF file and Crop PDF.updated scrolling the pdf file cannot using the mouse wheel issue. added CropPDF, MaskingPDF, MergePDF, MergePDFWithBookmarks, RotatePDF, RotatePDFAllPage, SplitPDF, DeletePDFPage , MergePDF, SplitPDF ,GetPDFPageCount methodsupdated C#2019, C# 2010, VB.NET 2019, VB.NET 2010, VB6 samples.Version 3.1 Released (24 September, 2019)fixed when print the pdf, tiff, jpeg to printer, display System.DivideByZeroException error.added C# 2019, VB.NET 2019 samples.Version 3.0 Released (21 June,