Asp net core 7 mvc sending database data to view

Introduction

ASP.NET is a popular programming language used for building web applications. In this article, we will explore how to send database data to a view in ASP.NET Core 7 MVC.

Setting up the Database

we can send database data to a view, we need to set up a database and establish a connection to it. Let's assume we have a SQL Server database named “MyDatabase” with a table named “Customers”.


// Database connection string
string  = "Server=localhost;Database=MyDatabase;Trusted_Connection=True;";

// Create a new SqlConnection object
using (SqlConnection connection = new SqlConnection(connectionString))
{
    // Open the connection
    connection.Open();

    // Perform database operations
    // ...
}

Retrieving Data from the Database

Once we have established a connection to the database, we can retrieve data from the “Customers” table. We will use a SqlCommand object to execute a SQL query and retrieve the data.


// SQL query to retrieve data from the Customers table
string query = " * FROM Customers";

// Create a new SqlCommand object
using (SqlCommand  = new SqlCommand(query, connection))
{
    // Execute the query and retrieve the data
    SqlDataReader reader = command.ExecuteReader();

    // Process the retrieved data
    while (reader.Read())
    {
        // Access the data using the reader object
        string customerId = reader["CustomerId"].ToString();
        string customerName = reader["CustomerName"].ToString();

        // Do something with the data
        // ...
    }

    // Close the reader
    reader.Close();
}

Sending Data to the View

Now that we have retrieved the data from the database, we can send it to the view. In ASP.NET Core MVC, we can use a to pass data from the controller to the view.

, let's create a model class to represent the data we retrieved from the database:


 class 
{
    public string CustomerId { get; set; }
    public string CustomerName { get; set; }
}

Next, in the controller action method, we can populate a list of Customer objects with the retrieved data and pass it to the view:


public IActionResult Index()
{
    List customers = new List();

    // Retrieve data from the database and populate the customers list
    // ...

     View(customers);
}

Finally, in the view, we can access the data using the model:


@model List

@foreach (var customer in Model)
{
    

Customer ID: @customer.CustomerId

Customer Name: @customer.CustomerName

}

Conclusion

In this article, we have learned how to send database data to a view in ASP.NET Core 7 MVC. By establishing a connection to the database, retrieving the data, and it to the view using a model, we can display the database data in our web application.

Rate this post

Leave a Reply

Your email address will not be published. Required fields are marked *

Table of Contents