Lane  Sanford

Lane Sanford


Getting started with ASP.NET Core

The Manning Early Access Program (MEAP) has started for the second edition of my book ASP.NET Core in Action, Second Edition. This post gives you a sample of what you can find in the book. If you like what you see, please take a look - for now you can even get a 40% discount with the code bllock2. On top of that, you’ll also get a copy of the first edition, free!

The Manning Early Access Program provides you full access to books as they are written, You get the chapters as they are produced, plus the finished eBook as soon as it’s ready, and the paper book long before it’s in bookstores. You can also interact with the author (me!) on the forums to provide feedback as the book is being written.

When to choose ASP.NET Core

This article assumes that you have a general grasp of what ASP.NET Core is and how it was designed. You might be wondering: should you use it? Microsoft is recommending that all new .NET web development should use ASP.NET Core, but switching to or learning a new web stack is a big ask for any developer or company. In this article I cover:

  • What sort of applications you can build with ASP.NET Core
  • Some of the highlights of ASP.NET Core
  • Why you should consider using ASP.NET Core for new applications
  • Things to consider before converting existing ASP.NET applications to ASP.NET Core

What type of applications can you build?

ASP.NET Core provides a generalized web framework that can be used for a variety of applications. It can most obviously be used for building rich, dynamic websites, whether they’re e-commerce sites, content-based sites, or large n-tier applications—much the same as the previous version of ASP.NET.

When .NET Core was originally released, there were few third-party libraries available for building these types of complex applications. After several years of active development, that’s no longer the case. Many developers have updated their libraries to work with ASP.NET Core, and many other libraries have been created to target ASP.NET Core specifically. For example, the open source content management system (CMS), Orchard has been redeveloped as Orchard Core to run on ASP.NET Core. In contrast, the cloudscribe CMS project (figure 1) was written specifically for ASP.NET Core from its inception.

Figure 1

ASP.NET Core isn’t restricted to creating RESTful services. It’s easy to create a web service or remote procedure call (RPC)-style service for your application, depending on your requirements, as shown in figure 2. In the simplest case, your application might expose only a single endpoint, narrowing its scope to become a microservice. ASP.NET Core is perfectly designed for building simple services thanks to its cross-platform support and lightweight design.

Figure 2 core core in action

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Getting started with ASP.NET Core
Einar  Hintz

Einar Hintz


jQuery Ajax CRUD in ASP.NET Core MVC with Modal Popup

In this article, we’ll discuss how to use jQuery Ajax for ASP.NET Core MVC CRUD Operations using Bootstrap Modal. With jQuery Ajax, we can make HTTP request to controller action methods without reloading the entire page, like a single page application.

To demonstrate CRUD operations – insert, update, delete and retrieve, the project will be dealing with details of a normal bank transaction. GitHub repository for this demo project :

Sub-topics discussed :

  • Form design for insert and update operation.
  • Display forms in modal popup dialog.
  • Form post using jQuery Ajax.
  • Implement MVC CRUD operations with jQuery Ajax.
  • Loading spinner in .NET Core MVC.
  • Prevent direct access to MVC action method.

Create ASP.NET Core MVC Project

In Visual Studio 2019, Go to File > New > Project (Ctrl + Shift + N).

From new project window, Select Asp.Net Core Web Application_._

Image showing how to create ASP.NET Core Web API project in Visual Studio.

Once you provide the project name and location. Select Web Application(Model-View-Controller) and uncheck HTTPS Configuration. Above steps will create a brand new ASP.NET Core MVC project.

Showing project template selection for .NET Core MVC.

Setup a Database

Let’s create a database for this application using Entity Framework Core. For that we’ve to install corresponding NuGet Packages. Right click on project from solution explorer, select Manage NuGet Packages_,_ From browse tab, install following 3 packages.

Showing list of NuGet Packages for Entity Framework Core

Now let’s define DB model class file – /Models/TransactionModel.cs.

public class TransactionModel
    public int TransactionId { get; set; }

    [Column(TypeName ="nvarchar(12)")]
    [DisplayName("Account Number")]
    [Required(ErrorMessage ="This Field is required.")]
    [MaxLength(12,ErrorMessage ="Maximum 12 characters only")]
    public string AccountNumber { get; set; }

    [Column(TypeName ="nvarchar(100)")]
    [DisplayName("Beneficiary Name")]
    [Required(ErrorMessage = "This Field is required.")]
    public string BeneficiaryName { get; set; }

    [Column(TypeName ="nvarchar(100)")]
    [DisplayName("Bank Name")]
    [Required(ErrorMessage = "This Field is required.")]
    public string BankName { get; set; }

    [Column(TypeName ="nvarchar(11)")]
    [DisplayName("SWIFT Code")]
    [Required(ErrorMessage = "This Field is required.")]
    public string SWIFTCode { get; set; }

    [Required(ErrorMessage = "This Field is required.")]
    public int Amount { get; set; }

    [DisplayFormat(DataFormatString = "{0:MM/dd/yyyy}")]
    public DateTime Date { get; set; }


Here we’ve defined model properties for the transaction with proper validation. Now let’s define  DbContextclass for EF Core. core article core #add loading spinner in core core crud without reloading core jquery ajax form core modal dialog core mvc crud using jquery ajax core mvc with jquery and ajax core popup window #bootstrap modal popup in core mvc. bootstrap modal popup in core #delete and viewall in core #jquery ajax - insert #jquery ajax form post #modal popup dialog in core #no direct access action method #update #validation in modal popup

Einar  Hintz

Einar Hintz


MVC User Registration & Login with ASP.NET Core Identity

User registration and authentication are mandatory in any application when you have little concern about privacy. Hence all most all application development starts with an authentication module. In this article, we will discuss the quickest way to use **ASP.NET Core Identity for User Login and Registration **in a new or existing MVC application.

Sub-topics discussed :

  • How to add ASP.NET Core Identity to MVC application.
  • Customize ASP.NET Core Identity.
  • Identity.UI Design Customization.
  • Next step.


ASP.NET Core Identity is an API, which provides both user interface(UI) and functions for user authentication, registration, authorization, etc. Modules/ APIs like this will really be helpful and fasten the development process. It comes with ASP.NET Core Framework and used in many applications before. Which makes the API more dependable and trustworthy.

ASP.NET Core MVC with user authentication can easily be accomplished using Identity.UI. While creating the MVC project, you just need to select Authentication as Individual User Accounts.

Showing how to create an MVC application with ASP.NET Core Identity API

The rest will be handled by ASP.NET Core Identity UI. It already contains razor view pages and backend codes for an authentication system. But that’s not what we want in most of the cases. we want to customize ASP.NET Core Identity as per our requirement. That’s what we do here.

Create an ASP.NET Core MVC Project

First of all, I will create a brand new ASP.NET Core MVC application without any authentication selected. We could add ASP.NET Core Identity later into the project.

In Visual Studio 2019, Go to File > New > Project (Ctrl + Shift + N). From new project window, select ASP.NET Core Web Application.

Create an ASP.NET Core Web application

Once you provide the project name and location. A new window will be opened as follows, Select _Web Application(Model-View-Controller), _uncheck _HTTPS Configuration _and DO NOT select any authentication method. Above steps will create a brand new ASP.NET Core MVC project.

Select Model View Controller templet under .NET Core core article core #add core identity to existing project core identity in mvc core mvc login and registration #login and logout in core

Get all of roles in asp net core core core mvc #Core core tutorials core with entity framework

Authorization in core core core mvc #Core core tutorials core with entity framework

AllowAnonymous in core core core mvc #Core core tutorials core with entity framework