Creating a seamless and efficient CRUD (Create, Read, Update, Delete) application is a common requirement for developers. ASP.NET Core coupled with Entity Framework Core offers a powerful framework to build such applications efficiently. In this article, we’ll discuss how to construct a basic CRUD application using these technologies.
Getting Started with ASP.NET Core and Entity Framework Core
What is ASP.NET Core?
ASP.NET Core is an open-source, cross-platform framework for building modern, cloud-based, internet-connected applications. It offers high performance and flexibility to develop web and mobile apps.
What is Entity Framework Core?
Entity Framework Core (EF Core) is a lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology. EF Core can serve as an Object-Relational Mapper (ORM) which enables developers to work with a database using .NET objects and simplifies the programming tasks by fundamentally eliminating the need for most of the data-access code.
Setting Up the Environment
- Install .NET 5 SDK: Ensure you have the latest .NET SDK installed on your machine.
- Set up a new ASP.NET Core Project: Use the command line to run
dotnet new mvc -o CrudAppto create a new MVC project. - Install Entity Framework Core: Navigate to your project folder and install the Entity Framework Core packages using:
dotnet add package Microsoft.EntityFrameworkCore.SqlServer
dotnet add package Microsoft.EntityFrameworkCore.Tools
Creating the Model
Suppose we want a CRUD application for a simple inventory system. Create the InventoryItem model:
public class InventoryItem
{
public int Id { get; set; }
public string Name { get; set; }
public int Quantity { get; set; }
public decimal Price { get; set; }
}Setting Up the DbContext
Create a new class named AppDbContext to manage the database:
public class AppDbContext : DbContext
{
public AppDbContext(DbContextOptions options) : base(options) { }
public DbSet InventoryItems { get; set; }
} In the Startup.cs file, configure the DbContext:
public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext(options =>
options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));
services.AddControllersWithViews();
} Building the CRUD Operations
Create
Add a new method in your controller to handle the Create operation:
[HttpPost]
public async Task Create(InventoryItem inventoryItem)
{
if (ModelState.IsValid)
{
_context.Add(inventoryItem);
await _context.SaveChangesAsync();
return RedirectToAction(nameof(Index));
}
return View(inventoryItem);
} Read
Fetch and display a list of Inventory Items:
public async Task Index()
{
return View(await _context.InventoryItems.ToListAsync());
} Update
Enable editing of existing items:
[HttpPost]
public async Task Edit(int id, InventoryItem inventoryItem)
{
if (id != inventoryItem.Id) return NotFound();
if (ModelState.IsValid)
{
_context.Update(inventoryItem);
await _context.SaveChangesAsync();
return RedirectToAction(nameof(Index));
}
return View(inventoryItem);
} Delete
Enable deletion of items:
[HttpPost, ActionName("Delete")]
public async Task DeleteConfirmed(int id)
{
var item = await _context.InventoryItems.FindAsync(id);
_context.InventoryItems.Remove(item);
await _context.SaveChangesAsync();
return RedirectToAction(nameof(Index));
} Why You Need ASP.NET Core and Entity Framework Core for CRUD Applications
- Efficiency: ASP.NET Core and EF Core streamline CRUD operations, significantly reducing the development time and effort.
- Scalability: These frameworks support scalability for growing databases and applications.
- Cross-Platform Support: Develop applications on Windows, macOS, and Linux seamlessly.
- Strong Community and Support: Benefit from comprehensive documentation and a robust developer community.
Why You Should Buy Hosting From InterServer
To ensure your ASP.NET Core applications run seamlessly, you need a reliable hosting provider like InterServer. With competitive pricing, strong customer support, and diverse hosting options, InterServer is the ideal choice for developers looking to deploy their applications efficiently.
Where to Buy
To get started and host your CRUD applications, visit InterServer. Choose the hosting plan that best fits your needs and benefit from the reliability and excellent support InterServer offers.
Build and deploy your applications with confidence and ease with InterServer’s exceptional hosting services!
