components

问题 I need to be able to add & remove Angular components on the fly. To do so, I'm using loadIntoLocation and dispose methods, like it: Adding a component (from a layout manager): this.m_loader.loadIntoLocation(MyComponent, this.m_element, 'content').then(_componentRef => { // Create the window and set its title: var component: MyComponent = (_componentRef.instance); component.ref = _componentRef; // init the component content }); Removing a component (from the component): this.ref.dispose(); It

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . Is there a decent free API/component for printing barcodes in C#? 回答1: Could the Barcode Rendering Framework at Codeplex GitHub be of help? 回答2: I do recommend BarcodeLibrary Here is a small piece of code of how to use it. BarcodeLib.Barcode barcode = new BarcodeLib.Barcode() { IncludeLabel = true, Alignment =

问题 This question already has answers here : How to share data/change between components (2 answers) Closed 3 months ago . I'm very new in angular 2. I have a problem to communicate between two components. When I have a layout with a parent and some child components, it's easy to set variables of the child components with the @Input annotation. But now I have a layout of one parent component (which is mostly for the layout) and two child components: The child component 2 have a bunch of buttons,

问题 I'm trying to understand when to use React functional components vs. classes and reading from the docs they don't really go into detail. Can you give me some primary examples of the below of when you would want a specific feature of a class to make a component? A functional component is less powerful but is simpler, and acts like a class component with just a single render() method. Unless you need features available only in a class, we encourage you to use functional components instead. 回答1:

问题 I am trying to draw an image to a JPanel in java and I have that down, good. My problem now is I am attemping to make it scale to the full size of the window, but it is not doing so. I have tried methods, and they either make the image disappear, or there is no graphical change at all. The code I am currently working with: class ImagePanel extends JPanel { private static final long serialVersionUID = 1L; private Image img; public ImagePanel(String img) { this(new ImageIcon(img).getImage()); }

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 6 years ago . Okay so I have been working on this code for awhile that shows how the sorting algorithms work. Right now I have it working where it sorts multiple graphs with the same sort but I need each graph to do a

问题 Do you know is it possible to use component in itself? If yes,where to read about it? I have next situation: have list of mainItems, every Main Item has subItem (the same look like mainItem), every subItem can have it's own subItem etc. So it better to use nesting,but how? 回答1: update forwardRef() isn't required anymore because directives was moved to NgModule.declarations and therefore recursive components don't need to be registered on themselves as directives anymore. Angular 4.x.x Plunker

问题 Do you know is it possible to use component in itself? If yes,where to read about it? I have next situation: have list of mainItems, every Main Item has subItem (the same look like mainItem), every subItem can have it's own subItem etc. So it better to use nesting,but how? 回答1: update forwardRef() isn't required anymore because directives was moved to NgModule.declarations and therefore recursive components don't need to be registered on themselves as directives anymore. Angular 4.x.x Plunker

问题 In React, are there any real differences between these two implementations? Some friends tell me that the FirstComponent is the pattern, but I don't see why. The SecondComponent seems simpler because the render is called only once. First: import React, { PropTypes } from 'react' class FirstComponent extends React.Component { state = { description: '' } componentDidMount() { const { description} = this.props; this.setState({ description }); } render () { const {state: { description }} = this;

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 6 years ago . I searched in the showcase of primefaces there a few days and I found one component such as the input of tags of this site (stackoverflow ;) ) but when I searched now I don't find it do you know the component if