onclick | 易学教程

Onclick event getting called automatically

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问题 I wrote a JavaScript class called MyClass in which I've defined a method closeThis MyClass = function() { this.closeThis = function() { document.getElementById("hidePane").style.display = 'none'; } } Now, in my html, i'm trying to call that as follows... <script type="text/javascript"> function callThis() { var myclassObj = new MyClass(); document.getElementById("closeButton").onclick = myclassObj.closeThis(); } </script> The above callThis will be called when I clicked on a button. The

js 事件冒泡

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一. 什么是事件的冒泡：在一个对象上触发某类事件（比如单击onclick事件），如果此对象定义了此事件的处理程序，那么此事件就会调用这个程序，如果没有定义此事件处理程序或者事件返回true,那么这个事件就会向这个对象的父级对象传播，从里到外，直到它被处理（父级对象所有同类事件都将被激活），或者它到达了对象层次的最顶层，即document对象（有些对象是window）。二.如何阻止冒泡：例子： <body> <form> <div onclick="alert('我是最外层');"> <div onclick="alert('我是中间层！');"> <a href="#" onclick="alert('我是最里层！');">点击我</a> </div> </div> </form> </body> 比如上面这个页面，分为三层：divOne是第外层，divTwo中间层，hr_three是最里层; 他们都有各自的click事件，最里层a标签还有href属性。运行页面，点击“点击我”,会依次弹出：我是最里层---->我是中间层---->我是最外层---->然后再链接到百度. 这就是事件冒泡，本来我只点击ID为hr_three的标签，但是确执行了三个alert操作。事件冒泡过程（以标签ID表示）：hr_three---->divTwo---->divOne。从最里层冒泡到最外层

How to switch to new window in Selenium for Python?

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问题 I am working on selenium automation project using Python. I am facing an issue, which is handling multiple browser windows. Scenario is as follows. When I click a link on the home page, a new window opens. In the newly opened window I cannot perform any actions, because the focus is still on the home page web driver. Can anybody show me how to change focus from the background window to the newly opened window? A possible solution is driver.switch_to.window() , but it requires the window's

How can I simulate an anchor click via jquery?

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问题 I have a problem with faking an anchor click via jQuery: Why does my thickbox appear the first time I click on the input button, but not the second or third time? Here is my code: <input onclick="$('#thickboxId').click();" type="button" value="Click me" /> <a id="thickboxId" href="myScript.php" class="thickbox" title="">Link</a> It does always work when I click directly on the link, but not if I try to activate the thickbox via the input button. This is in FF. For Chrome it seems to work

JavaScript_Dom对象全实例讲解

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一．简单介绍 Dom是W3C-万维网联盟的标准，它定义了访问HTML和XML文档的标准。W3C文档对象模型（DOM）是中立与平台和语言的接口，它允许程序和脚本动态的访问和更新文档的内容、结构和样式的。 W3C将DOM分为3个不同的部分: 1.核心DOM:针对任何结构化文档的标准模型； 2.XML DOM部分：针对XML文档的标准模型； 3.HTML DOM部分:针对HTML文档的标准模型； XML DOM:定义了所有XML元素的对象和属性及访问它们的方法； HTML DOM:定义了所有HTML元素的对象和属性及访问它们的方法；二．DOM节点根据W3C的HTML DOM标准，HTML文档中的所有内容都是节点（NODE），分为5种节点类型： 1.整个文档是一个文档节点(document对象),每个html页面整体; 2.每个HTML元素是元素节点(element对象)，页面中的每个标签； 3.HTML元素内的文本是文本节点(text对象)； 4.每个HTML中属性是属性节点(attribute对象)； 5.注释是注释的节点(comment对象)；如下图所示: 2.1节点属性(自身属性): 1.attribute-节点(元素)的属性节点； 2.nodeType-节点类型； 3.nodeValue-节点值； 4.nodeName-节点名称； 5.innerHTML-节点(元素

Create Options Menu for RecyclerView Item

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问题 I have been attempting integrate an options menu in to my listview by following the following tutorial: [https://www.simplifiedcoding.net/create-options-menu-recyclerview-item-tutorial/] I have been able to get the icon for the menu to appear next to the items in the listview, but I am unable to click on it to get access to a popupmenu. I am attempting to implement this in side my public void onBindViewHolder(MyViewHolder holder, int position) method. I cannot figure out why I am unable to

How to get background color of button. On click action depends on background color [closed]

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问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 5 years ago . Set background color to control(Button) from color.xml.... I need background color of button for check which color assigned that time. 回答1: use like this: It's easy to get this as a Drawable Button button = (Button) findViewById(R.id.my_button); Drawable buttonBackground = button.getBackground();

Android: Return a string from a view?

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问题 How do I get a string from a view? To be more specific I have 36 buttons in a tabview. When I click the button it calls an android:onClick="onClick" from my XML to call the method onClick(View v) . I then want to pass variables via an intent to another activity based on the button clicked. Now I know my View of the button pressed is 'v', what I want to know is how to take that view and make it a string that I can manipulate. 回答1: In your xml define of Button, set tag for it: <Button android

C# adding click events to a list box

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问题 I'm trying to add a click event to a list box but for some reason nothing happens when I click an item in my list box. My guess and from what I've read, the code should look something like this private void listBox1_Click(object sender, EventArgs e) { //Code Ex. TextBox1.Text = "Success"; } That's not working though. Anyone know how to get this to happen? Wouldn't mind knowing the double click and other click variations too.... 回答1: If you want it to trigger when you 'click an item' in the

Javascript onclick functions do not work

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问题 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Untitled Document</title> <script language="javascript" type="text/javascript"> function setFont() { var i; for ( i = 0; i < document.all.length; i++) { document.all[i].style.fontFamily = "Verdana"; document.all[i].style.fontSize = "16"; document