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How to pick up event that closes the browser?

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Avante last edited by

I'm trying to clear my siteStorage before the window is closed and I tried to use window.unload and also window. unbeforeload. However, when using the same they clean the siteStorage if I just reload the page.
How can I be firing a function only when closing the browser? Please.
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nishika last edited by

It is not correct to use localStorage if you want to clean it when closing the Browser.
The right approach is sessionStorage, which behaves similar to an application session, which, as soon as it is closed, the session is closed.
See more at:
https://pt.stackoverflow.com/questions/19384/diferen%C3%A7as-entre-localstorage-vs-sessionstorage
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I don't know your code. I would do the following, for example:.divMae{position:relative; width:500px} .divFilha{position:absolute;z-index:2; left:50%; margin-left:-250px} With this, the divFilha will appear centralized below the divMae. If it doesn't show up, it could be your z-index, just go up there.
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It's not a mistake, it's just a warning given to Managed Debugging Assistant's. You're using Runtime Callable Wrapper, a special COM-Control.WebBrowser is in fact COM control.When you try to close the uniform, the extension of the palm throws on the ambrazure and tells you that the browser is still used, and you kill him before his current function is fully operational. It can only cause real problems if your code is multi-point.The problem is reproduced in the normal code when used CancelProperty the button, or DialogResult♪ Or in your case, when you have a special reaction to Esc. Focus is on his way. WebBrowserHe gets the Esc press. ActiveX is about to inform the container of the pressure so he can react to it. (This is necessary, for example, to support keyboards, Tab'a, Enter/Escape to reinvigorate the button and so on.) If there's a push on the keyboard. close. The shape (as in your case), the sweet sees what's on. WebBrowser'Cause Dispose while his RCW code is still being implemented. The danger is that when the code returns to the RCW, it has the right to work with the COM-object (and he doesn't know he's got the same object under his nose) and it's not that rare.Okay, in this particular case, the flight seems to be so simple. But the idea might be a problem if the finalizing flow reaches the COM target. beforehow the Esc processor returns. So the nap may have a race between the UI flow and the flow of the finaliser.As a charge, a real closure can be postponed at the time when the ActiveX Linkage code is finished. For example, by closing asynchronously:if (keyData == Keys.Escape) { this.BeginInvoke((Action)this.Close); return true; } Free translation https://stackoverflow.com/q/1874496/5796587 en.SO
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I was forced to write an answer:Do what you want to do. js You can't. As an option written by the Duck learnsmu, it contradicts basic safety requirements for example. A simple example with a cliff, if it was possible, imagine, go in search, find something, click on a given link, hit a strange website and... it's closing the whole browser. How do you feel? And now you're launching a browser, but since the browser is closed with that deposit, it's closing again. Beautiful, isn't it? They'll help either a bubble dance or a browser stop. It's just a great game of sapper, guess how many references a browser will kill.
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If you need to perform the function WebWorker without a function in a separate js file, and it's allowed to start a new one every time. WebWorkerYou can do it like this:function workerTask() { return Math.random() * Math.random() } runInWebWorker(workerTask, console.log); function runInWebWorker(task, callback) { task = ${task};(function(){this.postMessage(${task.name}())})();; var worker = new Worker(URL.createObjectURL(new Blob([task]))); worker.onmessage = e => worker.terminate() || callback(e.data); }
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Making a variable. fire value true at the beginning of the violin. Before post We'll check it out if fire = trueYes post- Yes. fire = false and hang the timer to appoint fire = true через 3 секунды♪ Final code: <script> fire = true; var clickedButtonValue; $('button[type="submit"]').click(function() { clickedButtonValue = $(this).val(); }); /* attach a submit handler to the form */ $("#commentadd").submit(function(event) { /* stop form from submitting normally */ event.preventDefault(); /* get some values from elements on the page: */ var $form = $(this), text = $form.find('textarea[id="userComment"]').val(), number = $form.find('input[id="num_clear"]').val(), url = $form.attr('action'), term = clickedButtonValue; /* Send the data using post */ if (fire = true) { fire = false; var posting = $.post(url, { like: term, text: text, num_clear: number }); setTimeout(function() { fire = true; }, 3000); } posting.done(function( data ) { /* Put the results in a div */ var data1 = $(data).find("#comments"); var data2 = $(data).find("#getrating"); $( "#comments" ).html(data1); $( "#getrating" ).html(data2); $("#commentadd")[0].reset(); }); }); </script>
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To try it you can put this in try_timer.html and see it in the browser<input id=the_input> <script> window.addEventListener('load', function(){ setInterval(function(){ document.getElementById('the_input').value=(new Date()).toTimeString().substr(0,8); },1000); }); </script> It stands out:the window.addEventListener to make sure the page is finished loadingsetInterval (to repeat every 1000 milliseconds)the substr (if you do not want to show the timezone)
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$("#parentid").on("click", "#id", function(){ alert('ok'); }); For #parentid may be a document or any other parent. Example http://jsfiddle.net/ivanovsuper/RGvKJ/ ♪
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In the form I only have text controls and buttons I have no crickets or database connections.Maybe you can't see it, but your form definitely does have a cricket at least, and from there comes the mistake. Note this portion of your error:at Janus.Windows.GridEX.GridEX.a(Object , String , Boolean ) at Janus.Windows.GridEX.GridEX.set_DataSource(Object value) at Janus.Windows.GridEX.GridEX.Dispose(Boolean disposing) Your form has an instance of GridExThat must be some sort of cricket. Whoever you're under the impression that your form doesn't have cricket tells me that maybe in a while it did, and then you tried to remove it, or something like that. In doing this, you must have corrupted the code, and now you have incomplete references to this cricket, which results in your mistake.It may be useful to start a clean project. If not, look well in the source code to find where you have references to this GridEx and eliminate it completely.
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The problem is,while (form.trigger_status == "start") { Thread.Sleep(1000); } blocks the communication cycle, so call form.textBox1. Invoke will forever expect the delegate to perform. In addition, the test of cycle properties (more, string) is not at least the best way to synchronize flows. How do you do that right? A logical solution would be to use asynchronous tasks instead of streaming. But you can use a classic way with EventWaitHandle and MsgWaitForMultipleObjectsEx:using System; using System.Collections.Generic; using System.Text; using System.Windows.Forms; using System.Runtime.InteropServices; using System.Threading; namespace WindowsFormsApp1 { public partial class Form1 : Form { [DllImport("user32.dll")] static extern int MsgWaitForMultipleObjectsEx(uint nCount, IntPtr[] pHandles, uint dwMilliseconds, uint dwWakeMask, uint dwFlags); const uint QS_ALLEVENTS = 1215; const int WAIT_OBJECT_0 = 0; const int WAIT_FAILED = -1; const uint INFINITE = 0xFFFFFFFF; //ожидает событие с обработкой сообщений public static void WaitEvent(EventWaitHandle evt) { var swh = evt.SafeWaitHandle; using (swh) { IntPtr h = swh.DangerousGetHandle(); while (true) { int res = MsgWaitForMultipleObjectsEx(1, new IntPtr[] { h }, INFINITE, QS_ALLEVENTS, 0); switch (res) { case WAIT_OBJECT_0: return; case WAIT_OBJECT_0 + 1: Application.DoEvents(); break; default: throw new System.ComponentModel.Win32Exception(Marshal.GetLastWin32Error()); } } } } public Form1() { InitializeComponent(); } EventWaitHandle evt; //объект для синхронизации void DoWork() { evt = new ManualResetEvent(false); try { //выполняем операции... } finally { evt.Set(); //сигнализируем об окончании обработки } } private void button1_Click(object sender, EventArgs e) { Thread th; th = new Thread(DoWork); th.Start(); //запускаем обработку в фоновом потоке } private void Form1_FormClosing(object sender, FormClosingEventArgs e) { if (evt != null) { WaitEvent(evt); //ожидаем конца фоновой обработки } } } }
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What you want to do is then, when you press the button, print you by console x number of times the text lorem imsum.window.addEventListener("load", ()=>{ getElements(); }) function getElements(){ var p = document.querySelector("p").innerHTML; var btn = document.querySelector('button'); btn.addEventListener('click', ()=>{ sayWord(p); }) } function sayWord(p){ for(var i=0;i<5;i++){ console.log(p); } }<!DOCTYPE html> <html> <meta charset="utf-8"> <head> <title></title> <script src="js/003.js"></script> </head> <body> <p>Hola Lorem ipsum dolor sit amet consectetur, adipisicing elit. Laboriosam, obcaecati, ndis consequuntur dolores cupiditate nulla ducimus dolorem similique quasi ipsam asperiores officia. Odit voluptate fugit, ducimus explicabo vel mollitia est? </p> <button>PULSAME</button> </body> </html>The for loop that you have is incomplete, therefore, I wouldn't do anything.The syntax of for is simple:for(var i = 0;) /*Esto inicializa el bucle asignándole la variable i al valor 0. Puede ser cualquier valor, y puedes darle el valor de la variable dentro o fuera del bucle, otro ejemplo con i fuera del bucle: var i; for(i = 0;) /Una vez hecho eso, tienes que fijar la salida del bucle:/ for(var i = 0; i < 5) /hacemos que la variable i valga 0. Y cuando i sea menor que 5 se ejecute, cuando i sea igual a 5, ya no se ejecutará. También puedes hacer i > 5; i <= 5; i >= 5...Todo son operandos./ //finalizamos la sintaxis del bucle con la itereación (añadir +1) for(var i = 0; i < 5; i++){/...Aqui el codigo a ejecutar, en este caso El console.log(p).../} You can also define yourself, using the prompt, when you want the loop closed:function sayWord(p){ var n = prompt('Inserta un valor de cierre del bucle'); while(!n || isNaN(n)){ var n = prompt('inserta un valor de cierre del bucle'); } for(var i=0;i<n;i++){ console.log(p); } } Changing the sayWord(p) function. If you analyze it carefully, you will see that the loop for has as closure to i ≤3. Being n the variable met by the prompt. If you want to verify that it is whether or if a number, you have to put it into a while loop with the isNaN(n) command, this checks out that it is a number, if you type a word it will not let you go and it will keep asking for an infinite number.
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In the design of the publication, Flash Player 11.2 was changed to AIR 2.5. Flash is working well, and there's no browser on the server. And it doesn't look like it.

How to pick up event that closes the browser?

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