components | 易学教程

How do I pass specific bindings to ng-outlet components brought in by the component router in Angular 1.5?

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问题 I'd like to be able to pass parameters to child components brought in with ng-outlet. But I'm not sure how to do it. Here's an example of my component bindings: app.component('profile', { bindings: { section: '=', currentUser: '<' }, ... Normally I'd invoke this like so: <profile section="$ctrl.bio" current-user="$ctrl.selectedUser"></profile> But instead I have this: <ng-outlet></ng-outlet> And a router that passes the profile in. $routeConfig: [ { path: '/Profile/:id', name: 'Profile',

Vue.js component lifecycle for children

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问题 What order are child components created and mounted in? I know that the lifecycle for a single component is documented here, but I couldn't find anything that described when children were created and mounted. For example, what is the creation and mounting order for the following component? <template> <div class='parent'> <child-1/> <child-2/> <child-3/> </div> </template> 回答1: I found this article to be especially helpful in explaining the order of parent/child lifecycle hooks execution. This

listen to service variable change from component angular

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问题 I have service with variable and method that brings data to that variable export class UserService { userDetails; getUserProfile(){ return this.http.get(this.BaseURI+'/UserProfile').subscribe( res=>{ this.userDetails=res; // console.log(res); }, err=>{ console.log(err); } ); } now I want to check from component when the variable changes and read it. How can I do that ? UPDATE. export class UserService { userDetails; getUserProfile(){ this.http.get(this.BaseURI+'/UserProfile').subscribe( res=>

listen to service variable change from component angular

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How does the tooltip control enhance all controls on the form with a new property?

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问题 When answering another question I started to wonder how I could Add new properties to all controls in a form just like the ToolTip-control does. For example I could use that to Add a "IsDirty"-flag to all textboxes just by adding the component to the form and it would handle this for every textbox. When adding the tooltip-control to the form all controls magically gets a new property "Tooltip on tooltip1" that can be set both programatically and in design view. I want to be able to do my own

How i can get input value within ionic 2 in my Component?

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问题 i will create a shopping app using ionic 2 , in products details i've created a stepper for increment and decrement value of quantity. My question : how i can get the input value within ionic 2 in my Component ? 回答1: Solution: 1- app/pages/index.html In Angular 2, you should use ngModel in the template. <ion-header> <ion-navbar primary> </ion-navbar> </ion-header> <ion-content> <ion-item> <button lightgray full (click)="incrementQty()">+</button> <ion-item> <ion-input type="number" min="1"

How i can get input value within ionic 2 in my Component?

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How to create a composite of existing components in JSF?

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问题 I'd like to know if it's possible to compose my own component (or call it Widget, Object). I mean, instead of (for example) using h:panelGroup and a h:outputLabel inside it, make my own h:panelMarkzzz , as a composition of panelGroup and outputLabel. Is it possible on JSF? 回答1: Yes, it's possible to create a composition of existing components like that. Kickoff example: /resources/foo/group.xhtml <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:h="http://xmlns.jcp.org/jsf/html

Array Property, TList, TStringList, or TCollection, etc (Delphi Win32)

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问题 I am developing various components, and regularly run into the need to have a property that has a "one-to-many" relationship, component-to-property-member. The components are often visual components, but not always, and sometimes need to be registered with the IDE (i.e. use the Property Inspector), but not always. I find myself unsure of which route to take when setting up these properties -- using an array property, a TList, a TStringList, a TCollection, or something else altogether (perhaps

Modularize and abstract react component functionality

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问题 I have below a working component that allows for a checkbox all and checkboxes. It works perfectly. However I hate the idea that I'm stuck carrying all of this code around every time I want to use this feature. I'm looking for a way within react to make this modular? Is this It doesn't modularize the entire functionality of the "input checked all" functionality in one place. I have to move the getInitialState variables and changeHandlers with each usage. I think of it like if the "input