Obie  Stracke

Obie Stracke

1623313500

Date, Time, and Time Zone Enhancements in .NET 6

I’m excited to share with you some of the improvements that have been made to .NET that are coming in .NET 6 in the area of dates, times, and time zones. You can try out all of the following, starting with .NET 6 Preview 4.

In this blog post, I’m going to cover the following topics:

For even more details, you can also refer to dotnet/runtime#45318 on GitHub.

Introducing the DateOnly and TimeOnly Types

If you’ve worked with dates and times in .NET, you’ve probably used DateTimeDateTimeOffsetTimeSpan and TimeZoneInfo. With this release, we introduce two additional types: DateOnly and TimeOnly. Both are in the System namespace and are built-in to .NET, just like the other date and time types.

#dotnet #dotnet core #dotnet 6

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Date, Time, and Time Zone Enhancements in .NET 6
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

Hal  Sauer

Hal Sauer

1591688078

Python Datetime Tutorial: Manipulate Times, Dates, and Time Spans

Dealing with dates and times in Python can be a hassle. Thankfully, there’s a built-in way of making it easier: the Python datetime module.

datetime helps us identify and process time-related elements like dates, hours, minutes, seconds, days of the week, months, years, etc. It offers various services like managing time zones and daylight savings time. It can work with timestamp data. It can extract the day of the week, day of the month, and other date and time formats from strings.

#data science tutorials #calendar #date #dates #datetime #intermediate #python #time #time series #times #tutorial #tutorials

Aisu  Joesph

Aisu Joesph

1624386660

.NET News Roundup: .NET 6, MAUI, EF Core 6, Visual Studio 2022

It’s been a busy week for the .NET community with the release of new previews for .NET 6 and its related frameworks (including MAUI), along with the first preview of Visual Studio 2022, new Azure SDK libraries, and more. InfoQ examined these and a number of smaller stories in the .NET ecosystem from the week of June 14th, 2021.

This week’s highlight was the release of new previews for .NET 6 and its related frameworks. .NET 6 Preview 5 includes improvements to a new feature named SDK workloads, which - according to Richard Lander, program manager for the .NET team at Microsoft - is the foundation of the .NET unification vision. The new feature allows developers to add support for new application types (such as mobile and WebAssembly) without increasing the size of the SDK. The improvements to the new feature are the inclusion of two new verbs - list and update - providing a sense of the expected final experience with the general availability release in November. Other features in .NET 6 Preview 5 include NuGet package validationmore Roslyn analyzers, improvements in the Microsoft.Extensions APIs (focused on hosting and dependency injection), WebSocket compression, and much more. Also according to Lander, “.NET 6 Preview 5 is perhaps the biggest preview yet in terms of breadth and quantity of features.” A comprehensive list of all features included in the new preview can be found in the official release post.

The ASP.NET Core framework also received significant improvements in .NET 6 Preview 5. One of the most important features of this release is the reduced Blazor WebAssembly download size with runtime relinking. Now developers can use the .NET WebAssembly tools (the same tools also used for .NET WebAssembly AOT compilation) to relink the runtime and remove unnecessary logic, dramatically reducing the size of the runtime. According to Microsoft, the size reduction is particularly relevant when using invariant globalization mode. Other features in the new release include .NET Hot Reload updates for dotnet watch, faster get and set for HTTP headers, and ASP.NET Core SPA templates updated to Angular 11 and React 17.

#azure #.net #.net maui #visual studio 2019 #.net 6 #visual studio 2022 #devops #news

Eric  Bukenya

Eric Bukenya

1618666860

.NET Conf 2020 Demos & Sessions for .NET 5 + Virtual Events!

This year’s .NET Conf was the largest one yet, with over 80 live sessions across three days that were co-organized and presented by the .NET community and Microsoft. On top of all of that, it also marked the release of .NET 5.0  that brings a full set of new capabilities, performance gains, and new languages features for developers to create amazing apps. If you missed this year’s .NET Conf live stream, don’t worry because we have you covered!

#.net #.net core #asp.net #c# #.net conf #.net foundation #community #demos

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