CSharp-Coder

In this article, We will learn how to solve 404 file or directory not found angular error in production.  Refresh browser angular 404 file or directory not found error You have built an Angular app and created a production build with ng build --prod You deploy it to a production server. Everything works fine until you refresh the page. The app throws The requested URL was not found on this server message (Status code 404 not found). It appears that angular routing not working on the production server when you refresh the page. The error appears on the following scenarios When you type the URL directly in the address bar. When you refresh the page The error appears on all the pages except the root page.   Reason for the requested URL was not found on this server error In a Multi-page web application, every time the application needs to display a page it has to send a request to the web server. You can do that by either typing the URL in the address bar, clicking on the Me...

How to Perform CRUD Operation Using Angular 14 In this article, we will learn the angular crud (create, read, update, delete) tutorial with ASP.NET Core 6 web API. We will use the SQL Server database and responsive user interface for our Web app, we will use the Bootstrap 5. Let's start step by step. Step 1 - Create Database and Web API First we need to create Employee database in SQL Server and web API to communicate with database. so you can use my previous article CRUD operations in web API using net 6.0 to create web API step by step. As you can see, after creating all the required API and database, our API creation part is completed. Now we have to do the angular part like installing angular CLI, creating angular 14 project, command for building and running angular application...etc. Step 2 - Install Angular CLI Now we have to install angular CLI into our system. If you have already installed angular CLI into your system then skip this step.  To install angular CLI ope...

How to Send an Email in .NET Core This tutorial show you how to send an email in .NET 6.0 using the MailKit email client library. Install MailKit via NuGet Visual Studio Package Manager Console: Install-Package MailKit How to Send an HTML Email in .NET 6.0 This code sends a simple HTML email using the Gmail SMTP service. There are instructions further below on how to use a few other popular SMTP providers - Gmail, Hotmail, Office 365. // create email message var email = new MimeMessage(); email.From.Add(MailboxAddress.Parse("from_address@example.com")); email.To.Add(MailboxAddress.Parse("to_address@example.com")); email.Subject = "Email Subject"; email.Body = new TextPart(TextFormat.Html) { Text = "<h1>Test HTML Message Body</h1>" }; // send email using var smtp = new SmtpClient(); smtp.Connect("smtp.gmail.com", 587, SecureSocketOptions.StartTls); smtp.Authenticate("[Username]", "[Password]"); smtp.Se...

.NET 6.0 - CRUD API Example and Tutorial This tutorial gives you step by step implementation of creating CRUD operations using ASP.NET Web API Core. This tutorial builds API for its clients to manage employee. it shows how to configure the SQL server connection to manage CRUD operations in real-time applications. Let's start step by step. 1. Create ASP.NET Web API Project Open your Visual Studio and select New Project from File Menu.     Now enter the name of the application and click next.   Next select framework .net 6 from drop down and enable open API (Swagger) support and click on create to create default project template for API.   2. Now Add Model to Employee Web API In this step, you will add the Employee Model Class which will define database entity. Right click on the project from solution explorer and select Add -> New Folder . Enter folder name as Models . Right click on the Models folder and select Add -> Class and add class...

Align String with Spaces [C#] This example shows how to align strings with spaces. The example formats text to table and writes it to console output. To align string to the right or to the left use static method String.Format. To align string to the left (spaces on the right), use negative number like below String.Format("{0,–10}", text) To align string to the right (spaces on the left), use postive number like below String.Format("{0,10}", text) Following example shows how to format text to the table. Values in the first and second column are aligned to the left and the third column is aligned to the right. Console.WriteLine("-------------------------------"); Console.WriteLine("First Name | Last Name | Age"); Console.WriteLine("-------------------------------"); Console.WriteLine(String.Format("{0,-10} | {1,-10} | {2,5}", "Adam", "Gilchrist", 50)); Console.WriteLine(String.Format("{0,-10...

How many access modifiers in c# In this article, we will learn about the access modifiers in C#. 1. Public Access Modifier in C# The class member, that is defined as a Public can be accessed by other class members that are initialized outside the class. A public member can be accessed from anywhere even outside the namespace. public class Vehicle { public void Color() { Console.WriteLine("Vehicle color red"); } } 2. Private Access Modifier in C# The private access modifier restrict the member variable or function to be called outside of the parent class. A private function or variable cannot be called outside of the same class. It hides its member variable and method from other class and methods. public class Vehicle { private string Name; public void Color() { Console.WriteLine("Vehicle color red"); } } In the above example, you cannot call name variable outside the class because it is declared as private. 3. Protected...

In this article, we will learn about the sealed class and method in C#. C# Sealed Class A sealed class, in C#, is a class that cannot be inherited by any class but can be initiated. When we don't want a class can be inherited by another class, We can declare that class as sealed class. A sealed class cannot have a derived class. We use the sealed keyword to create a sealed class. sealed class Vehicle { } class Car : Vehicle { } class Program { public static void Main(string[] args) { Car car = new Car(); Console.ReadLine(); } } In the above example, we have created a sealed class Vehicle and then we are trying to derived Car class from the Vehicle class. when we are trying to compile code it'll give following errors.       C# Sealed Method When we don't want method can be override by another class, We can declare that method as sealed method. We use a sealed keyword with an overridden method to create a sealed method. class Vehic...