visibility

问题 I have a TabControl that contains several tabs. Each tab has one UserControl on it. I would like to check the visibility of a control x on UserControl A from UserControl B . I figured that doing x.Visible from UserControl B would be good enough. As it turns out, it was displaying false in the debugger even though I set it explicitly to true and it was never changed. Then I read on MSDN for Control.Visible that: Even if Visible is set to true, the control might not be visible to the user if it

问题 I have a TabControl that contains several tabs. Each tab has one UserControl on it. I would like to check the visibility of a control x on UserControl A from UserControl B . I figured that doing x.Visible from UserControl B would be good enough. As it turns out, it was displaying false in the debugger even though I set it explicitly to true and it was never changed. Then I read on MSDN for Control.Visible that: Even if Visible is set to true, the control might not be visible to the user if it

问题 EDIT: Since the question has became quite popular I will fix the problem so it will be working code example. The original problem is still listed, But the code works . i am trying to show a div after pressing a button but this wont work, any idea why is that? <form action="insert.php" method="POST" align="right" id="post_form"> <input type="button" value="click me" onClick="show()"> <div id="show_button"> fdsfds </div><br> </form> #show_button{ visibility:hidden; } function show(){ // alert(

问题 Using Zurb's Foundation 4.1.5 (latest version), the Orbit image slider works great. Unfortunately it looks really for the first couple of seconds where all the images appear as a giant bulleted list. Then the JavaScript kicks in and it all is beautiful. How do I avoid the initial ugliness? Can I preload the images? Can I have everything with display: none or visibility: hidden until it's ready? 回答1: Per Foundation documentation We've cleaned up how Orbit initializes by adding a wrapper

问题 I have an object, that is facing a particular direction with (for instance) a 45 degree field of view, and a limit view range. I have done all the initial checks (Quadtree node, and distance), but now I need to check if a particular object is within that view cone, (In this case to decide only to follow that object if we can see it). Apart from casting a ray for each degree from Direction - (FieldOfView / 2) to Direction + (FieldOfView / 2) (I am doing that at the moment and it is horrible),

问题 So im trying to animate when i set the visibility of a linearlayout with other widgets, from GONE to VISIBLE and the opposite.Im using togglebuttons to show and hide. Here's an image to show what i want to do: I can show and hide, but im not following how can i animate the sliding correctly....:( Heres my xml: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/LinearLayout01" android:layout_height="wrap_content"

问题 I have several Views, text views, and a button that have the android:visibility="invisible" attribute. My goal is to click a button that resides above these 'invisible' widgets, so that these widgets will become visible. I created another java class called 'VisibilityActivity.java" and tried the following method. But for some reason when I run the app, the button doesn't do anything. I don't know what I'm missing. Here's the code: import android.app.Activity; import android.os.Bundle; import

问题 I have yet to find a solution to an issue that I am facing with a script that uses .toggleClass() to toggle the visibility of an element. The example below currently adheres the .show class to #pgnav in Firefox and Chrome, but for some reason, the action does not apply in Safari at all. Please view the snippet below for further reference: $(document).ready(function() { var $window = $(window); var div2 = $('#pgnav'); var div1 = $('#container2'); $window.on('scroll', function() { var scrollTop

问题 Hi I have a small website im doing for a customer and I have used a html/css-site and transferred it to wordpress by using blank theme. So far so good, have a look at energyshop.se if u want and in startpage the top two images are shown, but not udner the rest of the tabs - why? I add the images in the header.php so it should find them on all tabs...? //header.php <body <?php body_class(); ?>> <div id="container"> <div id="header" onclick="location.href='http://www.energyshop.se/';" style=

问题 In a short method, I hide a JFrame using setVisible(false). Then I take a screenshot and restore the JFrame with setVisible(true). After made visible again, the window is supposed to show a different picture than before (lets say a part of that screenshot taken). The problem is that after setVisible(true) is called, the window is flashed with the old content for a split second before paintComponent is called and the updated state is drawn. I could probably workaround this in an ugly way, but