Create Model in asp.net core

Create Model

In this section we'll create model class. The model class are use with EF Core (entity framework core) EF work with database EF core is ORM (object-relational mapping) the framework simplifies the data access code you we’ll write The model class created are known as POCO classes (Plain Old CLR Object) POCO class don’t have any dependency on EF Core, they only define the properties of the data to be stored in database

Add a data model class

Add file to the model folder name it Movie.cs Update movie file with code plonge

using System;
using System.ComponentModel.DataAnnotations;
namespace mvcProjectName.Models
{
    public class Movie
    {
        public int id { get; set; }
        public string Titel { get; set; }
        [DataType(DataType.Date)]
        public DateTime ReleaseDate { get; set; }
        public string Genre { get; set; }
        public decimal Price { get; set; }
    }
}

• The movie class contains an id field, which is required by the database for the primary key.
• The datatype attribute on ReleaseDate specifies the type of data (Date) with this attribute The user isn’t required to enter time information in the date field Only the date is display not time information

Add NuGet packages

Add following .net CLI commands

dotnet tool install --global dotnet-ef

this command add the command-line interface (CLI) tools for EF Core

dotnet tool install --global dotnet-aspnet-codegenerator

To add The aspnet-codegenerator scaffolding tool.

dotnet add package Microsoft.EntityFrameworkCore.Design

Design time tools for EF Core

dotnet add package Microsoft.EntityFrameworkCore.SQLite

The EF Core SQLite provider, which installs the EF Core package as a dependency.

dotnet add package Microsoft.VisualStudio.Web.CodeGeneration.Design
dotnet add package Microsoft.EntityFrameworkCore.SqlServer

This packages needed for scaffolding

Scaffold movie pages

Open a command window in project directory run the following command

dotnet-aspnet-codegenerator controller -name MoviesController -m Movie -dc MvcMovieContext --relativeFolderPath Controllers --useDefaultLayout --referenceScriptLibraries

The following table details the ASP.NET Core code generator parameters: Use the h switch to get help on the aspnet-codegenerator controller command:

dotnet aspnet-codegenerator controller -h