Thursday, October 17, 2019

Angular with .Net Core 3 and Visual Studio Code

Visual Studio Code is a cross platform light weight editor. Visual Studio Code can be used to work with a lot of languages and technologies including .Net Core and Angular.

Start a new  .Net Core  Angular Project with Authentication.

dotnet new angular -au Individual -o ngcore

The  above command will create a .Net Core project inside a folder called ngcore.

Navigate to the folder.

code .

Opens the current project folder in Visual Studio Code.

The ClientApp Folder contains the Angular app.

Open the terminal and issue the command

dotnet run 

A few packages are requires for creating Entity Framework Core and Web Api Controller.

 dotnet tool install --global dotnet-ef
dotnet add package Microsoft.VisualStudio.Web.CodeGeneration.Design

dotnet add package Microsoft.EntityFrameworkCore.SqlServer

dotnet add package Microsoft.EntityFrameworkCore.Tools 

dotnet tool install --global dotnet-aspnet-codegenerator

Proceed on to create Database and Table using sqlcmd tool from terminnal.
sqlcmd -S .
 create database CM
use CM
 create table Contacts (ContactId int identity(1,1) primary key, ContactName varchar(40), Location varchar(40))
 insert into Contacts values ('Vishnu', 'Kochi'), ('Sarathlal', 'Kakkanad'), ('Vaishak', 'Palarivattom')

For scaffolding the DataContext
dotnet ef dbcontext scaffold  "Data Source=.;Initial Catalog=CM;Integrated Security=True" Microsoft.EntityFrameworkCore.SqlServer -o Models

It will create a DbContext with the Name CMContext (DatabaseName followed by Context suffix) and C# classes corresponding to Database Tables.

Now we want to create WebApis

dotnet-aspnet-codegenerator controller -name ContactsController -api -m ngcore.Models.Contacts -dc CMContext -outDir Controllers 

This command will create a WebApi with the name Contacts using Contact Class previously generated and  Context.

For using the DbContext we can to register it with the Dependency Injection Contrainer. Go to ConfigureServices section in Startup.cs


The controller is ready. We can test the controller with following url https://localhost:5000/api/Contacts.

Project created with ng new angular contains  both WebApi and Angular files. The Angular files are placed inside ClientApp folder.

Here I am creating a typescript class called contact.

export class Contact {
  contactId?: number;
  contactName?: string;
  location?: string;

HttpClient Get 

Since we have created the Angular project with Individual User Account a lot of code is getting adding. Along with that is the import statement for HttpClient.

Create a contacts componenet with the following command

>ng g c contacts -m appp

import { Component, OnInit } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { Contact } from '../contact';

  selector: 'app-contacts',
  templateUrl: './contacts.component.html',
  styleUrls: ['./contacts.component.css']
export class ContactsComponent implements OnInit {

  constructor( private http: HttpClient) { }

  ngOnInit() {
  contacts: Contact[];

  showData() {
      .subscribe(contacts => this.contacts = contacts);


  <li *ngFor="let contact of contacts">

{{contacts | json}}

HttpClient Post

import { Component, OnInit } from '@angular/core';
import { Contact } from '../contact';
import { HttpClient, HttpHeaders } from '@angular/common/http';

  selector: 'app-contact-insert',
  templateUrl: './contact-insert.component.html',
  styleUrls: ['./contact-insert.component.css']
export class ContactInsertComponent implements OnInit {

  constructor(private http: HttpClient) { }

  ngOnInit() {

  httpOptions = {
    headers: new HttpHeaders({ 'Content-Type': 'application/json' })

  contact: Contact = {};
  Save() {<Contact>('https://localhost:44391/api/contacts',, this.httpOptions)
      (data: any) => {
        alert('Record Saved')

<p>Contact Insert</p>

    <input type="text" name="contactName" [(ngModel)]="contact.contactName" />
    <input type="text" name="contactName" [(ngModel)]="contact.location" />
  <input type="button" name="name" value="Save" (click)="Save()" />

{{contact | json}}

Tuesday, March 5, 2019

Begin JQuery Certification Preparation with uCertify

uCertify is a provider of test preparation software for 400+ IT certification exams including Microsoft, Cisco, CIW, Adobe, PMI, etc. uCertify offered me access to an online PrepKit in exchange for an unbiased review. I tried their PrepKit for Begin JQuery course and found it to be comprehensive and useful.  

For me the best part of the Begin JQuery course is the collection of Practice Questions with full explanations. Besides that, there are Interactive Quizzes & a Pre-Assessment Test. The Practice Questions can be taken in Test, Learn & Review mode. Tips & Flash Cards to highlight points important for passing the exam. Test history & performance analytics reports help in gauging your progress, identify the areas you have mastered and helped you focus on areas which need improvement to pass the actual exam.

The test interface is neat. To their credit, however, the site is responsive and well-designed. It is easy to jump to topics of interest easily, It is worth trying out. 

I'm very sure that uCertify's PrepKit software is a good choice if you are looking for training materials for Begin JQuery certification and will enhance your skills overs all the topics such as animation, Ajax with jQuery, DOM manipulation with jQuery, traversing with DOM, writing jQuery plug-in, Ajax image slider, and many more.