show-hide

问题 I have this horizontal layout of a QWidget subclass using QHBoxLayout : I would like the top widget to hide/show in sliding animation. I have read this article, and I know that I have to use QPropertyAnimation . Frankly, not a good Google result come up. Any suggestion for code example or maybe link to an article? 回答1: You can change the maximumHeight property of the top widget in an animation. For hiding the top widget : QPropertyAnimation *animation = new QPropertyAnimation(ui->topWidget,

问题 Hello I have to load an ajax element into div. That div would earlier have another sub div by the name div1, and to remove/hide the div1, I am doing a Ext.get('div1').hide(). But this is doing a visibility:hidden , rather than doing a display:none . I wanted to know what is the method to do a display:none rather than a visibility:hidden . 回答1: You have to change the visibility mode to display. var element = Ext.get('div1'); element.setVisibilityMode(Ext.Element.DISPLAY); element.hide(); 来源：

问题 First of all: I'm new to d3.js! I have a map and some points displayed on it. Now I want to add buttons to show/hide the points. What I have until now: function checkAll(){ d3.selectAll("g").attr("visibility", "visible"); } function uncheckAll(){ d3.selectAll("g").attr("visibility", "hidden"); } This works so far but hides/shows the whole map. I have a function "drawpoints()" that draws the points on the map. How can I change my code that it only shows/hides the points and not the whole map?

问题 I am new to Kendo Grid and trying to use the columnMenu option. I need to access the column Menu function (only the ability to show/hide columns from a button outside the grid. This link allows me to do that and it is working fine. How to show Kendo Grid's columnMenu using script But this still retains the columnMenu option in the column headers which I do not need. So after looking into it further, I was able to remove the column headers on the load using defaultGrid.thead.find("[data-field

问题 Here is the jsfiddle: http://jsfiddle.net/NKgG9/ I'm basically wanting those pink boxes to be on show on page load as normal but as soon as a user scrolls down the page I want them to fade out and disappear. When the user scrolls back up to their position or the top of the browser window I want those pink boxes to fade back in again. I'm useless with JS so good do with some help on how to do this. All help appreciated. 回答1: Very simple example: http://jsfiddle.net/a4FM9/2/ var divs = $('

问题 I am very new to javascript. So i have a select option and an input field. What i want to achieve is to have the value of the input field change when i select a particular option. This is what i have tried: First Name: <input type="text" value="colors"> <select name=""> <option>Choose Database Type</option> <option onclick="myFunction(g)>green</option> <option onclick="myFunction(r)>red</option> <option onclick="myFunction(o)>orange</option> <option onclick="myFunction(b)>black</option> <

问题 I wanted to create a design like this using ionic 2 -> https://codepen.io/Floky87/pen/bVopyZ Which is a login functionality that has a hide/show password. Here's my HTML code <ion-header> <ion-navbar> <ion-title>Login</ion-title> </ion-navbar> </ion-header> <ion-content padding> <ion-item> <ion-label floating primary>Username</ion-label> <ion-input type="text"></ion-input> </ion-item> <ion-item> <ion-label floating primary>Password</ion-label> <ion-input type="password"></ion-input> <ion-icon

问题 I'm just trying to preform a very simple jQuery action. I have two components: #safety and #safety-tab a , the #safety needs to be hidden on load. When the a link in the #safety-tab is clicked, it will hide itself and slideUp the #safety . This sort of works, but the #safety box just flickers on click, doesn't stay shown: $(document).ready(function() { $("#safety-tab a").click(function() { $(this).hide(); $("#safety").removeClass("hide"); }); }); While the markup is this: <div id="safety"

问题 I've got a sticky footer at the bottom of the webpage / viewpoint as well as clickable link "toggle menu" that SHOULD hide / show the menu. Problem is that I can't get the menu to hide and I've picked up that the problem lies within the CSS of the element that is supposed to hide / show. It's the fixed position {position:fixed;} ... When I remove "fixed" out, then the hide and showing of the menu works 100% but obviously the menu is no longer at the bottom of the browser. How can I get work

问题 So I'm trying to write a super simple script that will allow a user to throw any link or button with the class .close inside of a div, and when that .close link is clicked, it automatically closes the parent container. Here is what I'm currently trying to work with: JSFiddle The code that I am currently trying to use is: HTML <div class="well notice bg-green"> <button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button> <p>This is a notice that is green.</p> </div>