ng-conf 2017 Summary - Day 2 (Fair Day)
Angular v4 has been released. Read about Fair Day from ng-conf 2017 (April 6) Day 2. 

import { HttpModule } from '@angular/http';

@NgModule({
  imports: [
    HttpModule
  ]

In this post I described the problem that by default, DataAnnotation validation doesn't recursively inspect all properties in an object for DataAnnotation attributes. There are several solutions to this problem, but in this post I used the MiniValidation library from Damian Edwards. This simple library provides a convenience wrapper around DataAnnotation validation, as well as providing features like recursive validation. Finally I showed how you can replace the built-in DataAnnotation validation with a MiniValidation-based validator

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddOptions<MySettings>()
    .BindConfiguration("MySettings")
    .ValidateMiniValidation() // 👈 Replace with mini validation
    .ValidateOnStart();

var app = builder.Build();

OptionsValidationException: 
  DataAnnotation validation failed for 'MySettings' member: 'Nested.Value' with errors: 'The Value field is required.'.; 
  DataAnnotation validation failed for 'MySettings' member: 'Nested.Count' with errors: 'The field Count must be between 1 and 100.'.
Microsoft.Extensions.Options.OptionsFactory<TOptions>.Create(string name)
Microsoft.Extensions.Options.OptionsMonitor<TOptions>+<>c__DisplayClass10_0.<Get>b__0()

It was a legacy enterprise project and I was asked to improve its “advanced” filtering capabilities.

Before they had something like this:

But wanted something like this:

 

Finbuckle.MultiTenant

Finbuckle.MultiTenant is an open source framework for multitenant support in ASP.NET Core 2.0+ applications. Check out the GitHub repository for source code and samples or to provide feedback and suggestions. 

In this episode, Aaron Stannard (@Aaronontheweb) comes on to talk about his open source project, Akka.NET. This is a toolkit and runtime for building highly concurrent, distributed, and fault tolerant event-driven applications on .NET and Mono. 

With the introduction of container support in Windows Server 2016, we open a world of opportunities that takes traditional monolithic applications on a journey to modernize them for better agility.

<input type="text" [(ngModel)]="myModel" (blur)="onBlurMethod()">

export class AppComponent {
    searchForm: ControlGroup;
    results: Observable<any[]>;

    constructor(private http: Http) {
        let searchField = new Control();
        this.searchForm = new ControlGroup({searchField});
        this.results = searchField.valueChanges
                  .debounceTime(500)
                  .switchMap((val:string) => {
                         return this.search(val);
                  });
    }