方法二 只要给按钮设置 mousedown 事件,并在其中 event.preventDefault() 就可以了 //html<input type="text" autofocus="autofocus"> <button>点击我文本输入框不会失去焦点</button>//javascriptvarbtn = document.querySelector('button') btn.onmousedown=function(event) {event.preventDefault()} 想要点击按钮...
例如,我们可以在输入框失去焦点时,检查输入的内容是否符合要求,如果不符合,则给出相应的提示。 textField.addFocusListener(newFocusAdapter(){@OverridepublicvoidfocusLost(FocusEvente){Stringtext=textField.getText();if(text.length()<6||text.length()>16){JOptionPane.showMessageDialog(frame,"请输入6-16个...
("输入不能为空!"); inputField.focus(); // 将焦点重新设置到该输入框 } } </script> </head> <body> <form> <label for="name">姓名:</label> <input type="text" id="name" name="name" onblur="validateInput(event)"> <br><br> <input type="submit" value="提交"> </form> </...
addEvent(form,"focusin",focusHandler,false);//第一个参数为绑定的元素,第二个是事件类型,第三个是事件处理函数,第四个是是否捕获阶段,false代表冒泡。 addEvent(form,"focusout",blurHandler,false); } else{ addEvent(form,"focus",focusHandler,true);//第一个参数为绑定的元素,第二个是事件类型,第三...
focusin focusout 表单的聚焦事件,一般支持冒泡 <formaction="#"> <inputtype="text"> <inputtype="password"> </form> <script> varinput=document.querySelector("input"); varpass=document.querySelector("[type=password]"); varform=document.querySelector("form"); ...
Input Event常用事件触发的先后顺序如下: 1 keydown 2 keypress 3 textInput 4 input 5 keyup keydown,keyup 1 全部浏览器支持 2...:text,input:password,input:search,textarea以及元素是contentEditable模式时支持触发此事件 4 event.data,返回用户输入的文本(如果按键是...s,那么返回s;如果按键是s+Shift,那...
键盘输入时触发,event.detail = {value, cursor, keyCode},keyCode 为键值,处理函数可以直接 return 一个字符串,将替换输入框的内容。 bindfocus - 输入框聚焦时触发,event.detail = { value, height },height 为键盘高度。 bindblur - 输入框失去焦点时触发,event.detail = {value: value}。 bindconfirm - ...
FocusSearchDirection FrameMetrics FrameMetricsId FrameStats GestureDetector GestureDetector.ContextClickEventArgs GestureDetector.DoubleTapEventArgs GestureDetector.DoubleTapEventEventArgs GestureDetector.DownEventArgs GestureDetector.FlingEventArgs GestureDetector.IOnContextClickListener GestureDetector.IOnDoubleTapListener GestureDetec...
focus management, and mouse capture, to name a few. By placing the input API on the base elements, rather than treating all input events as a service, the input architecture enables the input events to be sourced by a particular object in the UI, and to support an event routing scheme ...
<script>export default { name: "HelloWorld", directives: { onlyNumber: { // 只调用一次,第一次绑到元素时调用。在这里可以进行一次性的初始化设置。 bind: function (el, vDir) { let dom = el.tagName == "INPUT" ? el : el.querySelector("input"); dom.placeholder = "请输入数值" + JSON...