visibility

XAML Grid Visibility Transition?

So as a quick example, one way of doing this; <Grid Grid.RowSpan=”2″ x:Name=”TheGrid” Margin=”30,30,0,30″ Visibility=”{Binding IsSearchEnabled, Converter={StaticResource visibilityConverter}}”> <Grid.RowDefinitions> <RowDefinition Height=”60″/> <RowDefinition Height=”*”/> </Grid.RowDefinitions> <!– Start the magic –> <Grid.RenderTransform> <TranslateTransform x:Name=”SlideIn” X=”750″ /> </Grid.RenderTransform> <Grid.Triggers> <EventTrigger RoutedEvent=”Grid.Loaded”> <BeginStoryboard> <Storyboard> <DoubleAnimationUsingKeyFrames Storyboard.TargetName=”SlideIn” Storyboard.TargetProperty=”X”> <SplineDoubleKeyFrame KeyTime=”0:0:1.25″ Value=”0″ /> </DoubleAnimationUsingKeyFrames> <DoubleAnimationUsingKeyFrames Storyboard.TargetName=”TheGrid” Storyboard.TargetProperty=”Opacity”> <SplineDoubleKeyFrame KeyTime=”0:0:1.55″ Value=”1″ /> … Read more

How to make a real private instance variable?

You can use the @private keyword inside the {} to make all subsequent variable declarations private. The default visibility is @protected (which is similar to protected in Java) and that generally works well. You’d have to specifically declare a variable as @public for it to be directly accessible outside the class. This Apple documentation has … Read more

DataTrigger where value is NOT null?

This is a bit of a cheat but I just set a default style and then overrode it using a DataTrigger if the value is null… <Style> <!– Highlight for Reviewed (Default) –> <Setter Property=”Control.Background” Value=”PaleGreen” /> <Style.Triggers> <!– Highlight for Not Reviewed –> <DataTrigger Binding=”{Binding Path=REVIEWEDBY}” Value=”{x:Null}”> <Setter Property=”Control.Background” Value=”LightIndianRed” /> </DataTrigger> </Style.Triggers> </Style>

Why isn’t CSS visibility working?

You cannot hover over a hidden element. One solution is to nest the element inside another container: CSS: .spoiler span { visibility: hidden; } .spoiler:hover span { visibility: visible; } HTML: Spoiler: <span class=”spoiler”><span>E.T. phones home.</span></span> Demo: http://jsfiddle.net/DBXuv/ Update On Chrome, the following can be added: .spoiler { outline: 1px solid transparent; } Updated demo: … Read more

How to demonstrate java multithreading visibility problems?

By modifying the example here by removing operations I have come up with an example that consistently fails in my environment (the thread never stops running). // Java environment: // java version “1.6.0_0” // OpenJDK Runtime Environment (IcedTea6 1.6.1) (6b16-1.6.1-3ubuntu3) // OpenJDK 64-Bit Server VM (build 14.0-b16, mixed mode) public class Test2 extends Thread { … Read more

How do I invert BooleanToVisibilityConverter?

Instead of inverting, you can achieve the same goal by using a generic IValueConverter implementation that can convert a Boolean value to configurable target values for true and false. Below is one such implementation: public class BooleanConverter<T> : IValueConverter { public BooleanConverter(T trueValue, T falseValue) { True = trueValue; False = falseValue; } public T … Read more

Equivalent of jQuery .hide() to set visibility: hidden

You could make your own plugins. jQuery.fn.visible = function() { return this.css(‘visibility’, ‘visible’); }; jQuery.fn.invisible = function() { return this.css(‘visibility’, ‘hidden’); }; jQuery.fn.visibilityToggle = function() { return this.css(‘visibility’, function(i, visibility) { return (visibility == ‘visible’) ? ‘hidden’ : ‘visible’; }); }; If you want to overload the original jQuery toggle(), which I don’t recommend… !(function($) … Read more

What is DOM reflow?

A reflow computes the layout of the page. A reflow on an element recomputes the dimensions and position of the element, and it also triggers further reflows on that element’s children, ancestors and elements that appear after it in the DOM. Then it calls a final repaint. Reflowing is very expensive, but unfortunately it can … Read more