[!INCLUDEadding-model]

• Right-click the Models folder, and then select Add > New File.

• In the New File dialog:

  • Select General in the left pane.
  • Select Empty Class in the center pain.
  • Name the class Movie and select New.

Add the following properties to the Movie class:

[!code-csharpMain]

   1:  //#define MovieNoEF

   2:  #if MovieNoEF

   3:  #region snippet_1

   4:  using System;

   5:   

   6:  namespace MvcMovie.Models

   7:  {

   8:      public class Movie

   9:      {

  10:          public int ID { get; set; }

  11:          public string Title { get; set; }

  12:          public DateTime ReleaseDate { get; set; }

  13:          public string Genre { get; set; }

  14:          public decimal Price { get; set; }

  15:      }

  16:  }

  17:  #endregion

  18:  #endif

The ID field is required by the database for the primary key.

Build the project to verify you don’t have any errors. You now have a Model in your MVC app.

Prepare the project for scaffolding

• Right click on the project file, and then select Tools > Edit File.

  

• Add the following highlighted NuGet packages to the MvcMovie.csproj file:

  [!code-csharpMain]

     1:  <Project Sdk="Microsoft.NET.Sdk.Web">

     2:    <PropertyGroup>

     3:      <TargetFramework>netcoreapp2.0</TargetFramework>

     4:    </PropertyGroup>

     5:    <ItemGroup>

     6:      <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.0" />

     7:      <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.0.0" />

     8:    </ItemGroup>

     9:    <ItemGroup>

    10:      <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.0.0" />

    11:      <DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="2.0.0" />

    12:    </ItemGroup>

    13:  </Project>

• Save the file.

• Create a Models/MvcMovieContext.cs file and add the following MvcMovieContext class: [!code-csharpMain]

     1:  using Microsoft.EntityFrameworkCore;

     2:   

     3:  namespace MvcMovie.Models

     4:  {

     5:      public class MvcMovieContext : DbContext

     6:      {

     7:          public MvcMovieContext (DbContextOptions<MvcMovieContext> options)

     8:              : base(options)

     9:          {

    10:          }

    11:   

    12:          public DbSet<MvcMovie.Models.Movie> Movie { get; set; }

    13:      }

    14:  }

• Open the Startup.cs file and add two usings: [!code-csharpMain]

     1:  using Microsoft.AspNetCore.Builder;

     2:  using Microsoft.AspNetCore.Hosting;

     3:  using Microsoft.Extensions.Configuration;

     4:  using Microsoft.Extensions.DependencyInjection;

     5:  using Microsoft.Extensions.Logging;

     6:  #region snippet1

     7:  using Microsoft.EntityFrameworkCore;

     8:  using MvcMovie.Models;

     9:   

    10:  namespace MvcMovie

    11:  {

    12:      public class Startup

    13:      {

    14:          #endregion

    15:          public Startup(IHostingEnvironment env)

    16:          {

    17:              var builder = new ConfigurationBuilder()

    18:                  .SetBasePath(env.ContentRootPath)

    19:                  .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)

    20:                  .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)

    21:                  .AddEnvironmentVariables();

    22:              Configuration = builder.Build();

    23:          }

    24:   

    25:          public IConfigurationRoot Configuration { get; }

    26:   

    27:          // This method gets called by the runtime. Use this method to add services to the container.

    28:  #region snippet2

    29:          public void ConfigureServices(IServiceCollection services)

    30:          {

    31:              // Add framework services.

    32:              services.AddMvc();

    33:   

    34:              services.AddDbContext<MvcMovieContext>(options =>

    35:                      options.UseSqlite("Data Source=MvcMovie.db"));

    36:    

    37:          }

    38:          #endregion

    39:   

    40:          // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.

    41:          public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)

    42:          {

    43:              loggerFactory.AddConsole(Configuration.GetSection("Logging"));

    44:              loggerFactory.AddDebug();

    45:   

    46:              if (env.IsDevelopment())

    47:              {

    48:                  app.UseDeveloperExceptionPage();

    49:                  app.UseBrowserLink();

    50:              }

    51:              else

    52:              {

    53:                  app.UseExceptionHandler("/Home/Error");

    54:              }

    55:   

    56:              app.UseStaticFiles();

    57:  #region snippet_seed

    58:              app.UseMvc(routes =>

    59:              {

    60:                  routes.MapRoute(

    61:                      name: "default",

    62:                      template: "{controller=Movies}/{action=Index}/{id?}");

    63:              });

    64:               

    65:              DBinitialize.EnsureCreated(app.ApplicationServices);

    66:              SeedData.Initialize(app.ApplicationServices);

    67:          }

    68:                      #endregion

    69:      }

    70:  }

• Add the database context to the Startup.cs file:

  [!code-csharpMain]

     1:  using Microsoft.AspNetCore.Builder;

     2:  using Microsoft.AspNetCore.Hosting;

     3:  using Microsoft.Extensions.Configuration;

     4:  using Microsoft.Extensions.DependencyInjection;

     5:  using Microsoft.Extensions.Logging;

     6:  #region snippet1

     7:  using Microsoft.EntityFrameworkCore;

     8:  using MvcMovie.Models;

     9:   

    10:  namespace MvcMovie

    11:  {

    12:      public class Startup

    13:      {

    14:          #endregion

    15:          public Startup(IHostingEnvironment env)

    16:          {

    17:              var builder = new ConfigurationBuilder()

    18:                  .SetBasePath(env.ContentRootPath)

    19:                  .AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)

    20:                  .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true)

    21:                  .AddEnvironmentVariables();

    22:              Configuration = builder.Build();

    23:          }

    24:   

    25:          public IConfigurationRoot Configuration { get; }

    26:   

    27:          // This method gets called by the runtime. Use this method to add services to the container.

    28:  #region snippet2

    29:          public void ConfigureServices(IServiceCollection services)

    30:          {

    31:              // Add framework services.

    32:              services.AddMvc();

    33:   

    34:              services.AddDbContext<MvcMovieContext>(options =>

    35:                      options.UseSqlite("Data Source=MvcMovie.db"));

    36:    

    37:          }

    38:          #endregion

    39:   

    40:          // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.

    41:          public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)

    42:          {

    43:              loggerFactory.AddConsole(Configuration.GetSection("Logging"));

    44:              loggerFactory.AddDebug();

    45:   

    46:              if (env.IsDevelopment())

    47:              {

    48:                  app.UseDeveloperExceptionPage();

    49:                  app.UseBrowserLink();

    50:              }

    51:              else

    52:              {

    53:                  app.UseExceptionHandler("/Home/Error");

    54:              }

    55:   

    56:              app.UseStaticFiles();

    57:  #region snippet_seed

    58:              app.UseMvc(routes =>

    59:              {

    60:                  routes.MapRoute(

    61:                      name: "default",

    62:                      template: "{controller=Movies}/{action=Index}/{id?}");

    63:              });

    64:               

    65:              DBinitialize.EnsureCreated(app.ApplicationServices);

    66:              SeedData.Initialize(app.ApplicationServices);

    67:          }

    68:                      #endregion

    69:      }

    70:  }

  This tells Entity Framework which model classes are included in the data model. You’re defining one entity set of Movie objects, which will be represented in the database as a Movie table.

• Build the project to verify there are no errors.

Scaffold the MovieController

Open a terminal window in the project folder and run the following commands:

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

If you get the error No executable found matching command "dotnet-aspnet-codegenerator", verify:

• You are in the project directory. The project directory has the Program.cs, Startup.cs and .csproj files.
• Your dotnet version is 1.1 or higher. Run dotnet to get the version.
• You have added the <DotNetCliToolReference> element to the MvcMovie.csproj file.

The scaffolding engine creates the following:

• A movies controller (Controllers/MoviesController.cs)
• Razor view files for Create, Delete, Details, Edit and Index pages (Views/Movies/*.cshtml)

The automatic creation of CRUD (create, read, update, and delete) action methods and views is known as scaffolding. You’ll soon have a fully functional web application that lets you manage a movie database.

Add the files to Visual Studio

• Add the MovieController.cs file to the Visual Studio project:

  • Right-click on the Controllers folder and select Add > Add Files.
  • Select the MovieController.cs file.

• Add the Movies folder and views:

  • Right-click on the Views folder and select Add > Add Existing Folder.
  • Navigate to the Views folder, select *Views, and then select Open.
  • In the Select files to add from Movies dialog, select Include All, and then OK.

[!INCLUDEadding-model 2x]

[!INCLUDEadding-model]

You now have a database and pages to display, edit, update and delete data. In the next tutorial, we’ll work with the database.

Additional resources

• (xref:)Tag Helpers
• (xref:)Globalization and localization

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