getelementbyid

Regular expression getElementById

由 ♀尐吖头ヾ 提交于 2019-11-29 18:13:33
I need to use pure Javascript for the first time in a long while, and having gotten used to the comfy mattress of jQuery, all the important stuff is escaping me. I need to select a bunch of divs on regular expression. So I have stuff like this; <div id="id_123456_7890123"> .. </div> <div id="id_123456_1120092"> .. </div> <div id="id_555222_1200192"> .. </div> <div id="id_123456_9882311"> .. </div> And I'd need to create a loop that goes through all the divs with an id that begins with id_123456_ . How would I go about doing that? I used jQuery with the :regex filter plugin before, but looking

Exception 0x800A01B6 using getElementById after the first load

由 混江龙づ霸主 提交于 2019-11-29 18:12:30
I have created a ribbon for Powerpoint with visual studio XML ribbon. This ribbon has a button that, simplifying, does this: opens an IE browser search an element (hiddenfield) in the code by his id get the value of this element Print the value in the actual slide It works correctly the first time I click the button of my ribbon, but it throws an Exception 0x800A01B6 the following times I click the button. This is the code executed when I click the button: Dim oType As Type = Type.GetTypeFromProgID("InternetExplorer.Application") If oType IsNot Nothing Then Dim ie As SHDocVw.InternetExplorer

JavaScript getElementById for ASP.NET Control returns null?

由 感情迁移 提交于 2019-11-29 17:45:37
问题 I use JavaScript and this error appears for me during execution: Microsoft JScript runtime error: 'document.getElementById(...)' is null or not an object this my code: <asp:Content ID="content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server"> <script language="javascript" type="text/javascript"> function ConfirmTransfere() { if (confirm("Syatem not allow negative inventory, would you like to continue ?") == true) { document.getElementById("btnAlelrt").click(); } } </script> <asp

Javascript: access DOM elements without getElementById [duplicate]

由 孤街浪徒 提交于 2019-11-29 16:09:05
This question already has an answer here: Is there a spec that the id of elements should be made global variable? 5 answers Below is some sample code. <body> <div id="wrapper" class="access"> <form id="test"> <input id="password"></input> <input type="submit"></input> </form> </div> <script> console.log(password); alert(wrapper.className); </script> </body> The console log returns the DOM element with id password . The alert is "alert". It works in normal code as well, e.g. var x = wrapper.className; Surely this is not right? What is the point of document.getElementById , $('#password') or

C# get element by name

由 北城余情 提交于 2019-11-29 14:50:14
Soo ive figured out how to get element by id, but i dont know how i can get element by name Here is my code: private void SendData() { webBrowser1.Document.GetElementById("textfield1").SetAttribute("value", textBox1.Text); webBrowser1.Document.GetElementById("textfield2").SetAttribute("value", textBox1.Text); } The problem is in my html code only textfield1 is a id but textfield2 is name soo i want to figure out how to get textfield2 Here is my html code: <html> <input type="text" id="textfield1" value="TEXT1"><br> <input type="text" name="textfield2" value="TEXT2"><br> <input type="submit"

error: Uncaught TypeError: Cannot set property 'innerHTML' of null [duplicate]

由 自闭症网瘾萝莉.ら 提交于 2019-11-29 14:38:36
问题 This question already has an answer here: 'innerHTML': object is null or undefined 1 answer I keep on getting the error "Uncaught TypeError: Cannot set property 'innerHTML' of null" when I try to run this program in chrome. I do not now what I am doing wrong, and and any help would be appreciated. <!DOCTYPE html> <html> <head> </head> <script> var x = "hey"; var counter = 1; var button = document.getElementById("button"); var div = document.getElementById("box"); var text = document

Why is jQuery selector function so slow compared to native DOM methods

由 前提是你 提交于 2019-11-29 12:18:03
问题 I know this topic has been debated in general several times already, but I am looking for a more technical and detailed insight to understand what is really going on. I devised a series of tests to compare speed of jQuery's most basic selectors '#id' and '.class' to various native DOM methods. What I wish is to find out exactly why the results are what they are. Here are the tests : http://jsperf.com/jqueryspeed The main thing noticeable, is that getElementById is clearely the fastest of all.

What does document.all mean? [duplicate]

由 被刻印的时光 ゝ 提交于 2019-11-29 07:13:11
Possible Duplicate: document.all vs. document.getElementById I'm refactoring some old code written by somebody else. And I came across the following snippet: if (document.all || document.getElementById) { ... } When will the code within the if-statement be executed? Thank you! document.all() is a non-standard way of accessing DOM elements. It's been deprecated from a few browsers. It gives you access to all sub elements on your document. document.getElementById() is a standard and fully supported. Each element has a unique id on the document. 来源： https://stackoverflow.com/questions/13663023

javascript: getElementById problem in IE

由 戏子无情 提交于 2019-11-29 04:07:21
I am trying to attach a click event to a check box using JavaScript. Shown below is the HTML and JS. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title></title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> <input type="hidden" name="caution_c" value="0"> <input type="checkbox" id="caution_c" name="caution_c" value="1" tabindex="120"> <script type="text/javascript"> var cb = document.getElementById('caution_c'); cb.onclick = function() { alert(1); } </script> </body> </html> The problem is that in IE, the click event does

It says that TypeError: document.getElementById(…) is null

由 纵然是瞬间 提交于 2019-11-28 23:07:31
Althought I pushed a parameter to getElementById I wonder from where is this 'is null' error coming from? TypeError: document.getElementById(...) is null [Break On This Error] document.getElementById(elmId).innerHTML = value; Line 75 In addition to this i wonder why title and time did not show unless I click one of these playlist pictures? bits All these results in null : document.getElementById('volume'); document.getElementById('bytesLoaded'); document.getElementById('startBytes'); document.getElementById('bytesTotal'); You need to do a null check in updateHTML like this: function updateHTML
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