You can download TypeScript 1.6 for Visual Studio 2015, Visual Studio 2013, on npm, or as source.
اشتراکها
You can download TypeScript 1.6 for Visual Studio 2015, Visual Studio 2013, on npm, or as source.
و همچنین افزونهی سرویس زبان Angular، این خطاها را در همان لحظه نمایش میدهد:
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>@ViewBag.Title - My ASP.NET Application</title> <link href="~/node_modules/bootstrap/dist/css/bootstrap.css" rel="stylesheet" /> <link href="~/app/app.component.css" rel="stylesheet"/> <link href="~/Content/Site.css" rel="stylesheet" type="text/css" /> <!-- 1. Load libraries --> <!-- IE required polyfills, in this exact order --> <script src="~/node_modules/angular2/es6/dev/src/testing/shims_for_IE.js"></script> <script src="~/node_modules/es6-shim/es6-shim.min.js"></script> <script src="~/node_modules/systemjs/dist/system-polyfills.js"></script> <script src="~/node_modules/angular2/bundles/angular2-polyfills.js"></script> <script src="~/node_modules/systemjs/dist/system.src.js"></script> <script src="~/node_modules/rxjs/bundles/Rx.js"></script> <script src="~/node_modules/angular2/bundles/angular2.dev.js"></script> <!-- Required for http --> <script src="~/node_modules/angular2/bundles/http.dev.js"></script> <!-- Required for routing --> <script src="~/node_modules/angular2/bundles/router.dev.js"></script> <!-- 2. Configure SystemJS --> <script> System.config({ packages: { app: { format: 'register', defaultExtension: 'js' } } }); System.import('app/main') .then(null, console.error.bind(console)); </script> </head> <body> <div> @RenderBody() <pm-app>Loading App...</pm-app> </div> @RenderSection("Scripts", required: false) </body> </html>
import { Component } from 'angular2/core'; @Component({ selector: 'pm-app', template:` <div><h1>{{pageTitle}}</h1> <div>My First Component</div> </div> ` }) export class AppComponent { pageTitle: string = "DNT AngularJS 2.0 APP"; }
selector: 'pm-app',
<div> @RenderBody() <pm-app>Loading App...</pm-app> </div>
template:` <div><h1>{{pageTitle}}</h1> <div>My First Component</div> </div> `
import { Component } from 'angular2/core';
<div> @RenderBody() <pm-app>Loading App...</pm-app> </div>
System.import('app/main')
/// <reference path="../node_modules/angular2/typings/browser.d.ts" /> import { bootstrap } from "angular2/platform/browser"; // Our main component import { AppComponent } from "./app.component"; bootstrap(AppComponent);
node_modules\angular2\src\core\application_ref.d.ts(171,81): error TS2304: Build: Cannot find name 'Promise'. node_modules\angular2\src\core\change_detection\differs\default_keyvalue_differ.d.ts(23,15): error TS2304: Build: Cannot find name 'Map'.
با توجه به اینکه در حال کار با یک برنامهی جاوا اسکریپتی هستیم، باز نگه داشتن developer tools مرورگر، جهت مشاهدهی خطاهای احتمالی ضروری است.
در اینجا اگر خطایی وجود داشته باشد، یا اطلاعات اضافی مدنظر باشد، در console لاگ خواهند شد. برای مثال در اینجا عنوان شدهاست که برنامه در حالت توسعه در حال اجرا است. بهتر است برای ارائهی نهایی، متد enableProdMode را در فایل index.html فراخوانی کنید.
>ng g m UploadFile -m app.module --routing
>ng g c UploadFile/UploadFileSimple
>ng g cl UploadFile/Ticket
export class Ticket { constructor(public description: string = "") {} }
import { Ticket } from "./../ticket"; export class UploadFileSimpleComponent implements OnInit { model = new Ticket();
<div class="container"> <h3>Support Form</h3> <form #form="ngForm" (submit)="submitForm(form)" novalidate> <div class="form-group" [class.has-error]="description.invalid && description.touched"> <label class="control-label">Description</label> <input #description="ngModel" required type="text" class="form-control" name="description" [(ngModel)]="model.description"> <div *ngIf="description.invalid && description.touched"> <div class="alert alert-danger" *ngIf="description.errors.required"> description is required. </div> </div> </div> <div class="form-group"> <label class="control-label">Screenshot(s)</label> <input #screenshotInput required type="file" multiple (change)="fileChange($event)" class="form-control" name="screenshot"> </div> <button class="btn btn-primary" [disabled]="form.invalid" type="submit">Ok</button> </form> </div>
(change)="fileChange($event)"
fileChange(event) { const filesList: FileList = event.target.files; console.log("fileChange() -> filesList", filesList); }
C:\Program Files (x86)\Microsoft VS Code\resources\app\extensions\node_modules\typescript\lib\lib.dom.d.ts
{ "lib": [ "es2016", "dom" ] } }
import { Component, OnInit, ViewChild, ElementRef } from "@angular/core"; export class UploadFileSimpleComponent implements OnInit { @ViewChild("screenshotInput") screenshotInput: ElementRef; submitForm(form: NgForm) { const fileInput: HTMLInputElement = this.screenshotInput.nativeElement; console.log("fileInput.files", fileInput.files); }
>ng g s UploadFile/UploadFileSimple -m upload-file.module
import { Http, RequestOptions, Response, Headers } from "@angular/http"; import { Injectable } from "@angular/core"; import { Observable } from "rxjs/Observable"; import "rxjs/add/operator/do"; import "rxjs/add/operator/catch"; import "rxjs/add/observable/throw"; import "rxjs/add/operator/map"; import "rxjs/add/observable/of"; import { Ticket } from "./ticket"; @Injectable() export class UploadFileSimpleService { private baseUrl = "api/SimpleUpload"; constructor(private http: Http) {} private extractData(res: Response) { const body = res.json(); return body || {}; } private handleError(error: Response): Observable<any> { console.error("observable error: ", error); return Observable.throw(error.statusText); } postTicket(ticket: Ticket, filesList: FileList): Observable<any> { if (!filesList || filesList.length === 0) { return Observable.throw("Please select a file."); } const formData: FormData = new FormData(); for (const key in ticket) { if (ticket.hasOwnProperty(key)) { formData.append(key, ticket[key]); } } for (let i = 0; i < filesList.length; i++) { formData.append(filesList[i].name, filesList[i]); } const headers = new Headers(); headers.append("Accept", "application/json"); const options = new RequestOptions({ headers: headers }); return this.http .post(`${this.baseUrl}/SaveTicket`, formData, options) .map(this.extractData) .catch(this.handleError); } }
postTicket(ticket: Ticket, filesList: FileList): Observable<any> { const formData: FormData = new FormData(); for (const key in ticket) { if (ticket.hasOwnProperty(key)) { formData.append(key, ticket[key]); } }
for (let i = 0; i < filesList.length; i++) { formData.append(filesList[i].name, filesList[i]); }
const headers = new Headers(); headers.append("Accept", "application/json"); const options = new RequestOptions({ headers: headers }); return this.http .post(`${this.baseUrl}/SaveTicket`, formData, options) .map(this.extractData) .catch(this.handleError);
import { UploadFileSimpleService } from "./../upload-file-simple.service"; export class UploadFileSimpleComponent implements OnInit { constructor(private uploadService: UploadFileSimpleService ) {}
submitForm(form: NgForm) { const fileInput: HTMLInputElement = this.screenshotInput.nativeElement; console.log("fileInput.files", fileInput.files); this.uploadService .postTicket(this.model, fileInput.files) .subscribe(data => { console.log("success: ", data); }); }
namespace AngularTemplateDrivenFormsLab.Models { public class Ticket { public int Id { set; get; } public string Description { set; get; } } }
using System.IO; using System.Threading.Tasks; using AngularTemplateDrivenFormsLab.Models; using Microsoft.AspNetCore.Hosting; using Microsoft.AspNetCore.Mvc; namespace AngularTemplateDrivenFormsLab.Controllers { [Route("api/[controller]")] public class SimpleUploadController : Controller { private readonly IHostingEnvironment _environment; public SimpleUploadController(IHostingEnvironment environment) { _environment = environment; } [HttpPost("[action]")] public async Task<IActionResult> SaveTicket(Ticket ticket) { //TODO: save the ticket ... get id ticket.Id = 1001; var uploadsRootFolder = Path.Combine(_environment.WebRootPath, "uploads"); if (!Directory.Exists(uploadsRootFolder)) { Directory.CreateDirectory(uploadsRootFolder); } var files = Request.Form.Files; foreach (var file in files) { //TODO: do security checks ...! if (file == null || file.Length == 0) { continue; } var filePath = Path.Combine(uploadsRootFolder, file.FileName); using (var fileStream = new FileStream(filePath, FileMode.Create)) { await file.CopyToAsync(fileStream).ConfigureAwait(false); } } return Created("", ticket); } } }
SaveTicket(Ticket ticket)
formData.append(filesList[i].name, filesList[i]);
var files = Request.Form.Files; foreach (var file in files)