ASP.NET Core MVC with EF Core code first
0 likes327 views
This document outlines a tutorial for creating an Employee Management System (EMS) using ASP.NET Core MVC and Entity Framework Core with a code-first approach. It covers essential operations such as creating, reading, updating, and deleting data, as well as setting up the application structure, implementing a repository pattern, and establishing a data model. The tutorial is designed for ASP.NET Core 2.2 and EF Core 2.0 or later using Visual Studio 2017.
![Create the
BaseEntity
In the Models folder, create
a folder named
“SharedKernel” and create
file named BaseEntity.cs
and replace the template
code with the following
code.
public abstract class BaseEntity
{
[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int Id { get; set; }
}](https://image.slidesharecdn.com/aspnetcore-190224150406/85/ASP-NET-Core-MVC-with-EF-Core-code-first-10-320.jpg)
![Create the data
model
In the Models folder, create
a class file named
Emplyee.cs and replace the
template code with the
following code.
public class Employee : BaseEntity
{
public string FirstName { get; set; }
public string LastName { get; set; }
public string Designation { get; set; }
public string Gender { get; set; }
public int DepartmentId { get; set; }
public Department Department { get; set; }
public double Salary { get; set; }
[DataType(DataType.Date)]
public DateTime? DateOfBirth { get; set; }
[DataType(DataType.EmailAddress)]
public string Email { get; set; }
public string PhoneNumber { get; set; }
public string ShortCode { get; set; }
public string ImageUrl { get; set; }
}](https://image.slidesharecdn.com/aspnetcore-190224150406/85/ASP-NET-Core-MVC-with-EF-Core-code-first-11-320.jpg)
ASP.NET Core MVC with EF Core code first
- 1. ASP.NET Core MVC with EF Core Code-First
- 2. About Me Md. Aftab Uddin Kajal Software Engineer SELISE rockin' software linkedin: @iamkajal || github: @iamkajal || kajal.alpha@gmail.com
- 3. Agenda ● Get started ● Create, Read, Update, and Delete operations ● Sorting, filtering ● Migrations ● Create a complex data model ● Reading related data ● Updating related data ● Implementing Repository Pattern ● Implementing Clean Architecture
- 4. EMS web app
- 5. Get started with EF Core in an ASP.NET MVC web app This lesson teaches ASP.NET Core MVC and Entity Framework Core with controllers and views. The EMS sample web application demonstrates how to create ASP.NET Core 2.2 MVC web applications using Entity Framework (EF) Core 2.0 and Visual Studio 2017. The sample application is a web site for a EMS. It includes functionality such as employee add, salary creation, and task assignments. In this lesson, you: ● Create ASP.NET Core MVC web app ● Set up the site style ● Learn about EF Core NuGet packages ● Create the data model ● Create the database context ● Register the SchoolContext ● Initialize DB with test data ● Create controller and views ● View the database
- 6. Create ASP.NET Core MVC web app Open Visual Studio and create a new ASP.NET Core C# web project named "EmployeeManagementSystem". 1. From the File menu, select New > Project. 2. From the left pane, select Installed > Visual C# > Web. 3. Select the ASP.NET Core Web Application project template. 4. Enter EmployeeManagementSystem as the name and click OK.
- 7. ● Wait for the New ASP.NET Core Web Application (.NET Core) dialog to appear ● Select ASP.NET Core 2.2 and the Web Application (Model-View-Controller) template. ● Note: This tutorial requires ASP.NET Core 2.2 and EF Core 2.0 or later. ● Make sure Authentication is set to No Authentication and Click OK
- 8. Set up the site style A few simple changes will set up the site menu, layout, and home page. Open Views/Shared/_Layout.cshtml and make the following changes: ● Change each occurrence of "EmployeeManagementSystem" to "EMS". There are three occurrences. ● Add menu entries for About, Employees, Salary Sheet, Task, and Departments, and delete the Privacy menu entry.
- 9. Coding
- 10. Create the BaseEntity In the Models folder, create a folder named “SharedKernel” and create file named BaseEntity.cs and replace the template code with the following code. public abstract class BaseEntity { [Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)] public int Id { get; set; } }
- 11. Create the data model In the Models folder, create a class file named Emplyee.cs and replace the template code with the following code. public class Employee : BaseEntity { public string FirstName { get; set; } public string LastName { get; set; } public string Designation { get; set; } public string Gender { get; set; } public int DepartmentId { get; set; } public Department Department { get; set; } public double Salary { get; set; } [DataType(DataType.Date)] public DateTime? DateOfBirth { get; set; } [DataType(DataType.EmailAddress)] public string Email { get; set; } public string PhoneNumber { get; set; } public string ShortCode { get; set; } public string ImageUrl { get; set; } }
- 12. Create the data model In the Models folder, create a class file named Department.cs and replace the template code with the following code. public class Department : BaseEntity { public string Name { get; set; } public List<Employee> Employees { get; set; } }
- 13. Create the database context Create this class by deriving from the Microsoft.EntityFrameworkCore.DbContext public class EmployeeDbContext : DbContext { Public EmployeeDbContext( DbContextOptions<EmployeeDbContext> options) : base(options) { } public DbSet<Department> Departments { get; set; } public DbSet<Employee> Employees { get; set; } }
- 16. Coding Implement Index action method in Employee Controller
- 17. Coding Implement Index View for Index method
- 18. Coding Implement Create, Edit, details and delete action method and View
- 20. Repository Pattern The repository pattern is mediator between database and application business logic. repository pattern have two purposes; first it is an abstraction of the data layer and second it is a way of centralising the handling of the domain objects.
- 22. Coding
- 24. Resources ● ASP.NET Core ● ASP.NET Core in MVA ● Patterns In Model-View-Controller Architectures ● Principles Take pride in your code. ●