Questions tagged [visibility]
Visibility is an attribute of an object. It may refer to the concept of having something visible (or not) on the graphical interface, or a symbol visibility in linkage. This tag should not be used in place of the more specific tags [memory-visibility] or [class-visibility].
visibility
3,193
questions
43
votes
8
answers
15k
views
Reasons to use private instead of protected for fields and methods
This is a rather basic OO question, but one that's been bugging me for some time.
I tend to avoid using the 'private' visibility modifier for my fields and methods in favor of protected.
This is ...
- 3,283
37
votes
12
answers
3k
views
How to change css of tag from an outside link
I have a menu in a tag called sf-menu.
I need the visibility to change to none when the link is clicked and toggled back when clicked again.
Can I achieve this with CSS only or do I need JavaScript?
...
- 5,751
35
votes
7
answers
32k
views
Expose a private Objective-C method or property to subclasses
According to some official talk, a class in Objective-C should only expose public methods and properties in its header:
@interface MyClass : NSObject
@property (nonatomic, strong) MyPublicObject *...
- 5,813
34
votes
6
answers
121k
views
Bind visibility property to a variable
I have a Border with Label inside a Window,
<Border x:Name="Border1" BorderBrush="Black" BorderThickness="1" HorizontalAlignment="Left" Height="21" Margin="229,164,0,0" VerticalAlignment="Top" ...
- 383
34
votes
3
answers
27k
views
toggle visibility of chain group in constraint layout
In previous xml layout, I have multiple view groups with few elements inside. Hide each view group will also hide all of its child elements. Since I wanted to have flat structure and tried ...
- 930
34
votes
2
answers
50k
views
C++ -fvisibility=hidden -fvisibility-inlines-hidden
I have a question about the C++ visibility attribute. I have read http://gcc.gnu.org/wiki/Visibility and yet I dont quite understand how it works.
I want use the visibility to be hidden on some of my ...
- 7,302
34
votes
7
answers
8k
views
How to demonstrate java multithreading visibility problems?
If variables in Java are accessed from multiple threads, one must ensure that they are safely published. This usually means using synchronizedor volatile.
I have got the impression, that some of my ...
- 5,752
34
votes
5
answers
19k
views
Is there a downside to using -Bsymbolic-functions?
I recently discovered the linker option "-Bsymbolic-functions" in GNU ld:
-Bsymbolic
When creating a shared library, bind references to global symbols to the
definition within the shared library,...
33
votes
9
answers
55k
views
Call private methods and private properties from outside a class in PHP
I want to access private methods and variables from outside the classes in very rare specific cases.
I've seen that this is not be possible although introspection is used.
The specific case is the ...
- 1,093
33
votes
2
answers
11k
views
Why there are only 75 visible characters in Intellij Idea's embedded terminal?
When I use Idea's embedded command prompt in the tools window I can only see 75 characters. The chars are there but they are not visible:
C:>echo "This is the sentence I want to show you but I get ...
32
votes
4
answers
33k
views
WPF Tooltip Visibility
How can I ensure that a button's Tooltip is only visible when the button is disabled?
What can I bind the tooltip's visibility to?
- 3,799
32
votes
8
answers
30k
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Accessing a Private Constructor from Outside the Class in C#
If I define a class with a private default constructor and a public constructor that has parameters, how can I access the private constructor?
public class Bob
{
public String Surname { get; set; }
...
- 1,253
31
votes
5
answers
63k
views
Dynamically toggle visibility of WPF grid column from C# code
My problem is: I can't find out how to toggle the visibility of my WPF grid column. Assume following XAML markup:
<Grid x:Name="myGrid">
<Grid.RowDefinitions>
<...
- 431
31
votes
5
answers
59k
views
Defining constants in python class, is self really needed?
I want to define a set of constants in a class like:
class Foo(object):
(NONEXISTING,VAGUE,CONFIRMED) = (0,1,2)
def __init__(self):
self.status = VAGUE
However, I get
NameError: ...
- 5,626
31
votes
2
answers
78k
views
Hiding an element: Difference between Javascript attribute and CSS style
I wonder if there is any difference in the result when hiding an element with JavaScript attribute or CSS Style.
For example:
element.setAttribute("hidden", true);
vs
element.style.visibility = "...
- 1,509