Question

Creating CRUD (Create, Read, Update, Delete) operations in an ASP.NET MVC application

Answer 1

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Creating CRUD (Create, Read, Update, Delete) operations in an ASP.NET MVC application

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YouTube Video:

Creating CRUD (Create, Read, Update, Delete) operations in an ASP.NET MVC application involves several steps. Below is a step-by-step guide for implementing CRUD operations in an ASP.NET MVC project:

Prerequisites

Visual Studio (any version supporting ASP.NET MVC)

Basic knowledge of C# and ASP.NET MVC

SQL Server (for database operations)

Step 1: Create a New ASP.NET MVC Project

Open Visual Studio and create a new project:

Go to File > New > Project.

Select ASP.NET Web Application (.NET Framework).

Choose MVC as the template and click OK.

Step 2: Set Up the Database

Open SQL Server Management Studio (SSMS) or your preferred database tool.

Create a new database (e.g., CrudDb).

Create a table in the database:

CREATE TABLE Students (
    Id INT PRIMARY KEY IDENTITY,
    Name NVARCHAR(100),
    Email NVARCHAR(100),
    Age INT
);

Step 3: Add a Database Connection in the Project

Open the Web.config file.

Add a connection string:

<connectionStrings>
    <add name="CrudDbContext" connectionString="Data Source=.;Initial Catalog=CrudDb;Integrated Security=True" providerName="System.Data.SqlClient" />
</connectionStrings>

Step 4: Create the Model

Right-click on the Models folder and select Add > Class.

Name the class Student.cs and add the following properties:

public class Student
{
    public int Id { get; set; }
    public string Name { get; set; }
    public string Email { get; set; }
    public int Age { get; set; }
}

Step 5: Create the DbContext

Install Entity Framework:

Go to Tools > NuGet Package Manager > Manage NuGet Packages for Solution.

Search for EntityFramework and install it.

Add a new class to the Models folder, name it CrudDbContext.cs, and define the DbContext:

using System.Data.Entity;

public class CrudDbContext : DbContext
{
    public CrudDbContext() : base("CrudDbContext") { }
    public DbSet<Student> Students { get; set; }
}

Step 6: Create the Controller

Right-click on the Controllers folder and select Add > Controller.

Choose MVC 5 Controller with views, using Entity Framework.

In the dialog:

Model class: Select Student.
Data context class: Select CrudDbContext.

Click Add.

Step 7: Update the Database (Migrations)

Open the Package Manager Console from Tools > NuGet Package Manager.

Run the following commands:

Install-Package EntityFramework

Enable-Migrations

Add-Migration InitialCreate

Update-Database

Step 8: Run the Application

Press F5 to run the application.

Navigate to the URL: 

/Students

Use the auto-generated UI to perform CRUD operations:

Create: Add a new student.
Read: View the list of students.
Update: Edit a student’s details.
Delete: Remove a student.

Step 9: Customize the Views (Optional)

Open the Views > Students folder.

Modify the .cshtml files to customize the UI (e.g., changing labels, adding CSS).

Summary

You’ve created a simple ASP.NET MVC application with CRUD functionality using Entity Framework. This application allows you to manage a list of students with Create, Read, Update, and Delete operations. For more advanced scenarios, you can enhance validation, add authentication, or improve the UI using Bootstrap or other frameworks.

For any doubts and query, please write on YouTube video comments section.

Note : Flow the Process shown in video.

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Thanks & Regards,

Chitt Ranjan Mahto "Chirag"

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