components

问题 Let's say I have a simple component in glimmer with a list of items <todo-list @items={{ items }}></todo-list> template.hbs <ul> {{#each @items key="@index" as |item|}} <li onclick={{ action clickme }}>{{ item }}</li> {{/each}} </ul> component.ts import Component, { tracked } from '@glimmer/component'; export default class TodoList extends Component { constructor(options) { super(options); } clickme() { // how do I access the parent context from here? } } Even if I pass in an action from the

问题 I had a component cause a bunch of errors at installation in my Joomla website. I tried the normal way of removing it by visiting the extension manager and clicking uninstall. This did not work, so I visited these two locations and deleted all the files: ../administrator/components/com_badcomponentname ../components/com_badcomponentname I then went into phpmyadmin and dropped all the tables that were associated with com_badcomponentname . The only thing that is left is the listing in the

问题 I recently asked a question about translucent components causing odd artifacts from seemingly not updating properly. The answer I received caused the artifacts to go away, but at the cost of translucency. The solution was to- for every translucent component- also call the setOpaque(false) function. This way, Swing knew that it needed to redraw the background behind those components. However, this came at the cost of the translucency that I was trying to achieve. It caused the components to

问题 This seems like a fairly straightforward question but I've been unable to find an answer: Let's say I have two products: A and B created by MyCompany. Both products A and B will have shortcuts in the start menu in this fashion: MyCompanyFolder->Product_A_Folder->A.exe and MyCompanyFolder->Product_B_Folder->B.exe If I uninstall "Product B" I don't want it to delete the "MyCompanyFolder" unless it is the last product left. I would just check to see if "Product A" exists or not (through a

问题 I want to be able to have a Primefaces tree in 2 places on my page. The reason is that I want to have the two trees with the same data have exacly the same state- the same nodes expanded etc. I tried to bind both instances to the same value in backing bean but this results in only one of them rendering. Am I doing it wrong? Should this be solved differently? The related question (with slightly different requirements) states that one should not do this, but if not- what should be done? JSF

问题 I have a reactjs component(compA) in my app that call another reactjs component(compB) to mount compA. Inside compB, I have a button that, in function "componentDidUpdate" I need to destroy and rebuild compA. Anybody has idea how to do this? The approximate code is this, but, in my code compA and B they are in different files. use strict'; var CompA = React.createClass({ getDefaultProps: function() { return { name: 'location', } }, render: function () { return <CompB name={this.props.name}/>;

问题 I am working at modelling a software system using Sparx Enterprise Architect 13. This system contains different versions of software components. We typically add services and/or APIs when we release a new version of a software component. Currently, to reflect the fact that component ServiceV1 exposes an interface A and ServiceV2 exposes interfaces A (the same as ServiceV1) and B, I make ServiceV2 extend ServiceV1. But that is not straightforward: the generalization link is not available in

问题 I have a component <my-component> in Angular 5 @Component({ selector: 'my-component', templateUrl: './my.component.html', styleUrls: ['./my.component.css'] }) export class MyComponent { click(param: string){ console.log(param); } And in my html I have something like this: <my-component (click)="click('Hello world')"></my-component> I need to overwrite click function to execute: console.log('Param: ' + param); How can I do this??? 回答1: In your app.module.ts import { OriginalComponent } from '.

问题 Below I do have following two VHDL files. The file x.vhd with a component x which needs to be referenced (included) in the file top.vhd as a package. -- x.vhd library IEEE; use IEEE.std_logic_1164.all; use IEEE.numeric_std.all; package x_pkg is component my_x port(clk_clk : in std_logic := '0'; reset_reset_n : in std_logic := '0'; end component my_x; end package x_pkg; ----------------------------------------------------------------------------- library IEEE; use IEEE.std_logic_1164.all; use

问题 You used to be able to get the package a Delphi component was installed under from the palette. That functionality doesn't seem to be in the lastest versions, though. How can I find which package a component belongs to under D2007 or D2009? 回答1: I don't know of any way to do this through the Delphi IDE. However, you can do a search in your registry for the component name. For instance, to find the package that TBitBtn belongs to, open RegEdit and do a search (on Keys only) for TBitBtn. The