Abigale  Yundt

Abigale Yundt

1596618180

Blazor mobile bindings, EF update, ASP.NET Core A-Z, more!

On tap this week:

  • Mobile Blazor bindings
  • More Entity Framework updates (get your questions in)!
  • Dev Discussions: Shahed Chowdhuri
  • Community roundup

Mobile Blazor bindingsPermalink

In this week’s ASP.NET community standup, Jon Galloway talked with Eilon Lipton about his experimental Mobile Blazor Bindings project. The project has been out in experimental mode for a while and, as Eilon said in the standup, looks to be slated for general public consumption by the end of July or so.

So, what is Mobile Blazor Bindings? (We’ll call it MBB from now on.) MBB allows you to write native, cross-platform mobile applications using the Blazor programming model. (If you don’t know Blazor yet, it’s a new ASP.NET Core technology which allows you to write C# across the stack, in most cases replacing JavaScript.) This allows you to use Blazor with Razor markup, as an alternative to the Xamarin.Forms XAML model, which might be foreign to many web developers. In February, Dylan Berry wrote about how he was able to port over a Xamarin.Forms MVVM screen, which was 188 lines - and was only 68 lines with the MBB model.

Based on the success of this project so far, a natural question to ask is what this says for the fate of Xamarin. Based on Microsoft’s past communications on MBB, this is messaged as an option. In other words: you do you. If you like to write mobile apps using XAML, continue doing that! If you’re a fan of Razor syntax and features (and the Blazor model), this is an option for you. As someone who enjoys the latter and is allergic to XAML (despite what my doctor says), it’s a big selling point for me, as it makes the barrier to entry a lot easier if you want to dip your toes into mobile app development.

For more details, check out the GitHub repo.

More Entity Framework updates (get your questions in!)Permalink

A few weeks ago, we checked in on EF Core. As things evolve quickly, and with this week’s release of EF Core 5 Preview 6, there’s still more to discuss! This release includes a lot of requested functionality, including split queries for related collections, an IndexAttribute annotation, improved query translation exceptions, IPAddress mapping, and more.

Split queries is a big one. Until this release, EF Core generates a single SQL query for any LINQ query, even when you use .Include or a projection type that returns you multiple related collections. While it ensures consistency, it can be slow-performing.

Now, you can leverage the AsSplitQuery() API. Let’s say you have a Blogger entity, which has Posts and then Tags. Now, this would be split into three different queries: one to get the blogger (by ID, likely), one to get all Posts for the blogger using an inner join on Blogger, and a third to get Tags, with joins on the Blogger and the Post.

This new feature supports all operations, including OrderBySkipTakeJoin, and FirstOrDefault. Take a look at the release announcement for details.

Also, I’m excited to say I have a .NET Stacks interview set up with Jeremy Likness, the Senior PM for .NET Data at Microsoft! If you have any questions about Entity Framework, or any data-related .NET stuff, let me know this week and I will forward it to him.

#[object object] #blazor

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 Blazor mobile bindings, EF update, ASP.NET Core A-Z, more!
Einar  Hintz

Einar Hintz

1602560783

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 : https://bit.ly/33KTJAu.

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
{
    [Key]
    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.")]
    [MaxLength(11)]
    public string SWIFTCode { get; set; }

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

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

C#Copy

Here we’ve defined model properties for the transaction with proper validation. Now let’s define  DbContextclass for EF Core.

#asp.net core article #asp.net core #add loading spinner in asp.net core #asp.net core crud without reloading #asp.net core jquery ajax form #asp.net core modal dialog #asp.net core mvc crud using jquery ajax #asp.net core mvc with jquery and ajax #asp.net core popup window #bootstrap modal popup in asp.net core mvc. bootstrap modal popup in asp.net core #delete and viewall in asp.net core #jquery ajax - insert #jquery ajax form post #modal popup dialog in asp.net core #no direct access action method #update #validation in modal popup

Einar  Hintz

Einar Hintz

1602564619

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.

Background

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

#asp.net core article #asp.net core #add asp.net core identity to existing project #asp.net core identity in mvc #asp.net core mvc login and registration #login and logout in asp.net core

Authorization in asp.net core

#Asp.net core #Asp.net core mvc #Core #Asp.net core tutorials #Asp.net core with entity framework

AllowAnonymous in asp.net core

#Asp.net core #Asp.net core mvc #Core #Asp.net core tutorials #Asp.net core with entity framework

Einar  Hintz

Einar Hintz

1602564706

Running WordPress on ASP.NET Core with Peachpie

In this article, you will learn how to use or integrate WordPress in ASP.NET and Running WordPress on ASP.NET Core, without PHP, or any source files on the server. The following demonstration will show you how to add WordPress as a frontend to an existing ASP.NET Core application step by step.

Running WordPress on NET Core

WordPress is a free, simplest, and most popular open-source content management system to create your own website or blog which is written in PHP and paired up with MySQL. WordPress on .Net Core is possible with peachpie, which is a compiler built on top of the Roslyn platform, it’s a set of runtime and base class libraries and everything that allows compiling a PHP project, a group of PHP files into a regular .net project.

Peachpie allows for seamless both-way interoperability between PHP and .NET applications. In simpler terms, this means that one can have some parts of an application written in PHP, while other modules are written in .NET and everything will work together as one application. Here is the original Repository of the WordPress SDK by PeachPie.

Here are the following steps to run WordPress with ASP.Net Core:-

Step1: Open your Visual Studio IDE and Create a new project – > ASP.NET Core Web Application

create new project | wordpress on asp.net core

Step 2: Select Web Application: A project template for creating an ASP.Net Core application with example ASP.Net Razor Pages Content.

#.net core #asp.net #wordpress asp.net core #wordpress on asp.net core #wordpress with asp.net core