LinkLabel | custom hyperlink styling , optional interaction delegate
kandi X-RAY | LinkLabel Summary
kandi X-RAY | LinkLabel Summary
UILabel with custom hyperlink styling, optional interaction delegate, minimal setup.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of LinkLabel
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LinkLabel Examples and Code Snippets
Community Discussions
Trending Discussions on LinkLabel
QUESTION
I am developing a project on pattern representation through graphs. I am trying to use data from a json file for the creation of a directed network. However, I am facing problems when referencing the data once it has been loaded. Specifically, when referring to the array that stores the data (graph) I get the error: "Uncaught ReferenceError: graph is not defined". Any idea or explanation? Thanks in advance!!!
Here is my code. The data in the json file (graph.json) is commented in the code.
...ANSWER
Answered 2021-May-22 at 12:57You have a problem with scope.
First, define graph object (it can be a const reference)
QUESTION
How can i call InvalidateSurface method in this case? This method does not refer to the bindable object, but to the xaml element itself. I'm new to app development and I really need to figure this out.
Part of my xaml file ...ANSWER
Answered 2021-May-07 at 11:49To solve this problem i used a wrapper class:
QUESTION
I'm trying to add labels in the middle of the links, but I'm doing something wrong with the coordinates, although I have calculated them down in paper. The translation vector that I have obtained (excluding the fix for the arrows, which I haven't reached yet. See link update for more details) is the following:
...ANSWER
Answered 2021-Mar-18 at 23:19They are already horizontally centered, you just need to remove the RECT_HEIGHT
for adjusting the vertical position:
QUESTION
I am trying to change the colour of the text when hovered over a link in QLabel. I couldn't achieve it using the label provided by PyQt, So I am trying to create a custom label by inheriting QLabel.
Here is the code I have tried, but this doesn't work properly:
...ANSWER
Answered 2021-Feb-26 at 14:26It doesn't work properly because the label is centered, while your call to boundingRect()
obviously isn't:
Returns the rectangle that is covered by ink if character ch were to be drawn at the origin of the coordinate system.
Moreover, you're using a bigger font, and fontMetrics couldn't know anything about that, since it's based on the widget's font()
.
The solution is to use the correct boundingRect() implementation with a constructed font metrics based on the font you're going to use:
QUESTION
I got a D3 graph in place. Where a click on a node should delete this
node and the related link. A hover on each node will display the name of it. Further a console.log
confirms the name of the node, which was deleted. The problem I got is, as soon as I try to delete a node which is not the last one from the array, the console confirms the deletion but the node just replaces another one. Where is my thinking mistake?
ANSWER
Answered 2021-Feb-15 at 08:55Unless you use a key function...
QUESTION
I got a D3v4 graph in place, where I want to remove nodes with the .on("click", removeNode)
event. By searching through the community I found several solutions for D3v3, which manipulating the DOM selection. But it is not really deleting.
I thought about something like:
- Get nodeIndex
- splice(nodeIndex)
- restart force simulation / re-draw DOM
Any hints regarding best practice?
...ANSWER
Answered 2021-Feb-11 at 08:57You're just using Array.prototype.splice
in the data array, you're neither re-binding the data nor removing the actual element, e.g.:
QUESTION
I got an D3v4 graph in place, where I can dynamical add nodes. My problem is that each added node draws the link above the selected node. Adjusting the z-index seems nothing to change. The addNode()
creates a new link and new node for now. The node is a mix between hard coded and dynamical yet. Further I push the newly created link to the original graph array and the same for the node.
Any hints how I can fix the problem?
In following the addNode()
I am using:
ANSWER
Answered 2021-Feb-09 at 17:09Z-index doesn't work on svg. Svg will draw elements by the order they appear.
So you need to add the nodes after the links, so they are on top.
Because you are adding new nodes/links at a later stage, you can do this:
- Create the parent containers (first one for links, then one for nodes)
QUESTION
In a Xamarin template like this. I think there are two ways to check if a property has changed.
- Adding PropertyChanged += LinkLabel_PropertyChanged;
- Overriding, calling base
If I want to do something when more than one property has changed is there any difference between these two ways of calling a method?
...ANSWER
Answered 2020-Nov-08 at 09:52Yes, the difference is that registering for the PropertyChanged
event works from outside, overriding the protected(!) OnPropertyChanged
method works only from within derived classes of Label.
So you would normally only create a new derived LinkLabel
class if you want to change the behavior of the label. There, you'd override the OnPropertyChanged (if you need to).
If you want to get informed about a change in your main form, you would register the event directly there. No need to create a derived class.
QUESTION
I have this code that sets a label to one or another color depending on a property called IsEnabled:
...ANSWER
Answered 2020-Nov-07 at 18:26Add a new property
QUESTION
I have this XAML code:
...ANSWER
Answered 2020-Nov-07 at 17:43public LinkTemplate()
{
this.ColumnDefinitions.Add(new ColumnDefinition() { Width = new GridLength(1, GridUnitType.Star) });
Label LL = new Label();
LL.BindingContext = this;
LL.SetBinding(Label.IsEnabledProperty, Label.IsEnabledProperty.PropertyName);
this.Children.Add(LL, 0, 0);
}
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Vulnerabilities
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Install LinkLabel
Add #import "UIKit/UIGestureRecognizerSubclass.h" to Bridging Header file.
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