angular 2 conditional class

Angular 2 Form form In the Angular2 form form we need to understand the form data binding, data validation, data submission and so on, in the following example is not actually submitted to the background, this part of the content in the future Webapi to practice. Form Creation Here is an empty form Ngsubmit is an event for submitting data, the data is the content of the entire form form, and usually our

asp. Net Core + Angular 2 Template for Visual Studio2017-01-11 08:45 by Little white brother, 2069 read, 19 reviews, favorites, compilation Over the months, I've been building support libraries and packages with a number of community contributors on github, and our ultimate goal is to create a template that starts as a starting point, based on the typescript code and ANGULAR2 hosted in the Asp. net core Pro

Before doing a crud method on a page, in reality the Webapi module is often written in separate service, so modify the original design and structure, or need a lot of knowledge.2017.11.15 Add patch method to improve service program optimization notation2017.11.27 added promise return value processing, the server returns the error message after processing.Because all of the crud methods are written in the service, the code in the background is much simpler, and the callback needs more information

Two-way binding still exists in Angular 2 and Ng-model makes it simple. The syntax is a combination of the [input] and (output) syntax to represent, the data is being pushed out and pulled I N.Import {Component} from ' Angular2/core './todoservice '; @Component ( {' todo-input ', Template: ' [(Ngmodel)]= "Todomodule"> '}) Export class todo

The application is simple and to build a color picker:When click the Rect box, it'll check the color value below and title color would also change.Color-picker.ts:Import {Component, Output, Eventemitter, Input} from "@angular/core"'./constants '; @Component ({ ' Color-picker ', moduleId:module.id, ' color-picker.component.html ') export class colorpicker{ @Input () color:string; @Output (new

-bottom:None; the the} - .off{ - Border-bottom:1px solid @color-green-font; - -} + + } - img{ + width:163px; A Height:161px; at Margin-top:25px; - -} - + }JS code is as follows1Appdirectives.directive (' Switch ',function($timeout) { //define a dependency, the name is switch, the parameter passed in is equivalent to settimeout, but angular it encapsulates a layer, the equivalent of its own method; 2 re

({directives: [Form_directives, Ngif], Template: 'Div> H2>Demo Form:skuH2> Ngform is attched to the form, and #f = "form" form was also come from Ngform - form[Ng-form-model]= "MyForm"(Submit)= "OnSubmit (myform.value)"> Divclass= "Form-group"[Class.has-error]= "!sku.valid sku.touched"> label for= "Skuinput">Skulabel> inputtype= "text"class= "Form-control"ID= "Skuinput"placeholder= "SKU"[

module.js first defines a type (function) Module. This type has two functions. One, which is the base class for all modules, after which each module is an instance of this module. This is also the ultimate source of our previous discussion module.exports .The second function of this module is to complete the loading process of the node module. The require() last thing we use is to call the Module.require method, and this method calls another internal

]= "{' Height ': ' Calc (100%-64px) ', ' width ': ' 100% ', ' overflow ': ' Auto ', ' border-color ': ' #e0e0e0 ', ' Color ': ' #333333 ' , ' font-size ': ' 13px '} "> P-tree> Div> Divclass= "Col-2"style= "Padding:0px;margin-top:120px;text-align:center"> Divstyle= "margin-bottom:10px"> Buttontype= "button"class= "btn btn-clickstyle radius Pointer"(click)=

Heros.ts:Import {Component} from "@angular/core"; Const Heroes=[{ID:1, Name: ' Superman '}, {ID:2, Name: ' Batman '}, {ID:5, Name: ' Batgirl '}, {ID:3, Name: ' Robin '}, {ID:4, Name: ' Flash '}]; @Component ({selector:' Heroes ', Styleurls: [' Heroes.component.css '], Template: 'ngfor="Let hero of heroes; let i = index; Trackby: Trackby (Hero); Let Iseven=even; Let Isfirst=first; Let Islast=last

When creating a service, need to inject the sercive into the bootstrap ():Import {bootstrap, Component, View} from "Angular2/angular2""./todoinput"; "./todoservice" ; @Component ({ selector:' app '}) @View ({ directives: [Todoinput], Template: ' '}) class app{}Bootstrap (APP, [Todoservice]) ;Todoservice.jsExport class todoservice{ = []; Addtodo (value:any):void { this. To

Property Binding is the Bind property not attribute!Import {Component, Input, Output, eventemitter} from ' Angular2/core '; @Component ({selector:' Hero-item ', Styles: ['. Active {color:red} '], Template: 'class.active]= "IsSelected"[Attr.aria -label]= "Hero.name"(click)= "Selecthero (Hero)" >{{Hero.name}} `})//Export Class heroitem{label= "This is a super hero"; IsSelected=false; @Input () hero; @Output () Changed=NewEventemitter (); Construct

TypeScript is used heavily as we build to our application, but TypeScript isn ' t required. If you want to Inject a Service without using TypeScript, you'll need to understand the decorator @Inject .Import {Component, View, Inject} from "Angular2/angular2"; Import {Todoservice} from"./todoservice"; @Component ({selector:' Todo-input '})//Define a ref by using XXX-YYY//Reference a ref by using XXXYYY@View ({Template: ' `}) Export class todoinput

Showing how can expose properties on your controllers to access them using #refs inside of your template.// letterselect.ts ' angular2/angular2 '; @Component ({ ' letter-select '}) @View ({ directives: [Ngfor,form _directives], Template: ' for = "#letter of letters" >{{letter}} '}) Export class Letterselect { = [' E ', ' s ', ' W ']; Selectedletter = ' E '; Constructor () { }}Todolist.tsImport {Component, View, Ngfor,

{clockcomponent} from './clock'; @Component ({selector:'app', directives: [Clockcomponent], Template: '" Number"Value="0"> "Click$.next (Inputnum.value)">Update"Time | Async "> `}) ExportclassApp {click$=NewSubject (). Map ((number)=({type:hour, payload:parseint (number)})); seconds$= Observable.interval ( +). Mapto ({type:second, payload:1}); Time Constructor (Store:store) { This. Time = store.Select('Clock'); Observable.merge ( This. click$, This. seconds$). Subscribe (Store.dispat

ES6 tool chain original: Hui Zhi networkIt's not easy to make the Angular2 app run, because it uses too many technologies that are not supported by the current mainstream browser. So, we need a tool chain:ANGULAR2 is the future-oriented technology, requires the browser to support the es6+, we have to try now, we need to add some shims to erase the current browser and ES6 differences: SYSTEMJS-Universal Module Loader supports JS module loading in various formats such as AMD, CommonJS, ES

Controlgroup Description: My understanding of the directive is to bind the Controller group in the HTML template, and then operate these corresponding modules inside the component class, to see the code below, a look at it.Our root app Componentimport {Component, View, Control, Controlgroup, ControlArray, validators, Core_directives, Form_directives} from ' Angular2/angular2 ' @Component ({selector: ' My-app ',}) @View ({Template: '