visibility

Bind visibility property to a variable

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You don’t need to make any converter. Add a binding to a Visibility property for the border: <Border x:Name=”Border1″ Visibility=”{Binding Visibility}” BorderBrush=”Black” BorderThickness=”1″ HorizontalAlignment=”Left” Height=”21″ Margin=”229,164,0,0″ VerticalAlignment=”Top” Width=”90″ Opacity=”0.5″> <Grid> <Label Content=”test”/> </Grid> </Border> And then create the Visibility property in your ViewModel: private Visibility visibility; public Visibility Visibility { get { return visibility; } … Read more

Expose a private Objective-C method or property to subclasses

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One way to solve this is to re-declare the property in your subclass’s class extension, and then add an @dynamic statement so that the compiler won’t create an overriding implementation of that property. So something like: @interface SuperClass () @property (nonatomic, strong) id someProperty; @end …. @interface SubClass () @property (nonatomic, strong) id someProperty; @end … Read more

How to change css of tag from an outside link

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You can use input type=”checkbox” for it : http://jsfiddle.net/gSPqX/1/ <input type=”checkbox” style=”display: none” id=”cb”> <label for=”cb”>Click Here</label> <div> Hello. This is some stuff. </div> One more better solution using :target #menu .menu{ display:none; } #menu:target .menu{ display: block; } #menu:target .menu__open{ display: none; } #menu .menu__close{ display: none; } #menu:target .menu__close{ display: block; } <div … Read more

Reasons to use private instead of protected for fields and methods

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There is some consensus that one should prefer composition over inheritance in OOP. There are several reasons for this (google if you’re interested), but the main part is that: inheritance is seldom the best tool and is not as flexible as other solutions the protected members/fields form an interface towards your subclasses interfaces (and assumptions … Read more

Calling the base class constructor from the derived class constructor

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The constructor of PetStore will call a constructor of Farm; there’s no way you can prevent it. If you do nothing (as you’ve done), it will call the default constructor (Farm()); if you need to pass arguments, you’ll have to specify the base class in the initializer list: PetStore::PetStore() : Farm( neededArgument ) , idF( … Read more

Why isn’t CSS visibility working?

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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

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