In this article I will explain with an example, how to insert data into MySQL database with Stored Procedure in ASP.Net Core.
Note: For beginners in ASP.Net Core 7, please refer my article ASP.Net Core 7: Hello World Tutorial with Sample Program example.
 
 

Database

I have made use of the following table Customers with the schema as follows.
Insert data into MySQL Database with Stored Procedure in ASP.Net Core
 
Note: You can download the database table SQL by clicking the download link below.
          Download SQL file
 
 

Stored Procedure

The following Stored Procedure will be used to insert data into the MySQL database table.
This Stored Procedure accepts Name and Country parameters, which are used to insert the records in Customers Table.
DELIMITER //
CREATE PROCEDURE Customers_InsertCustomer(
    IN Name VARCHAR(100),
    IN Country VARCHAR(50)
)
BEGIN
    INSERT INTO Customers(Name, Country)
    VALUES(Name, Country);
    SELECT LAST_INSERT_ID()
END//
DELIMITER ;
 
 

Model

The Model class consists of following properties.
public class CustomerModel
{
    public int CustomerId { get; set; }
    public string Name { get; set; }
    public string Country { get; set; }
}
 
 

Namespaces

You will need to import the following namespaces.
using System.Data;
using MySql.Data.MySqlClient;
 
 

Controllers

The Controller consists of following Action method.

Action Method for handling GET operation

Inside this Action method, simply the View is returned.
 

Action Method for handling POST operation

This Action method accepts CustomerModel class object as parameter.
Inside this Action method, first the connection is read from the ConnectionStrings section of the AppSettings.json file.
The connection to the database is established using the MySqlConnection class.
Then, the ExecuteScalar function is executed and the records are inserted into the MySQL database.
Note: For more details on how to use ExecuteScalar function, please refer Understanding SqlCommand ExecuteScalar in C# and VB.Net.
 
Finally, the CustomerId of the inserted record is set and the CustomerModel class object is returned to the View.
public class HomeController : Controller
{
    public IConfiguration Configuration { get; set; }
 
    public HomeController(IConfiguration _configuration)
    {
        this.Configuration = _configuration;
    }
 
    public IActionResult Index()
    {
        return View();
    }
 
    [HttpPost]
    public IActionResult Index(CustomerModel customer)
    {
        string spName = "Customers_InsertCustomer";
        string constr = this.Configuration.GetSection("ConnectionStrings")["MyConn"];
        using (MySqlConnection con = new MySqlConnection(constr))
        {
            using (MySqlCommand cmd = new MySqlCommand(spName, con))
            {
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.Parameters.AddWithValue("@Name", customer.Name);
                cmd.Parameters.AddWithValue("@Country", customer.Country);
                con.Open();
                customer.CustomerId = Convert.ToInt32(cmd.ExecuteScalar());
                con.Close();
            }
        }
        return View(customer);
    }
}
 
 

View

Inside the View, in the very first line the CustomerModel class is declared as Model for the View.
The View consists of an HTML Form which has been created using the following TagHelpers attributes.
asp-action – Name of the Action. In this case the name is Index.
asp-controller – Name of the Controller. In this case the name is Home.
method – It specifies the Form Method i.e. GET or POST. In this case it will be set to POST.
The View also consists of an HTML Table, which consists of an HTML INPUT TextBox and HTML SELECT (DropDownList) and a Submit Button.
Inside the View, the following jQuery script file is inherited:
1. jquery.min.js
 
After the Submit Button is clicked, the CustomerModel class object is checked for NULL and if it is not NULL then, the CustomerId is displayed using JavaScript Alert Message Box.
@model Insert_SP_MySQL_Core.Models.CustomerModel
@addTagHelper*, Microsoft.AspNetCore.Mvc.TagHelpers
@{
    Layout = null;
}
 
<!DOCTYPE html>
<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
</head>
<body>
    <form method="post" asp-controller="Home" asp-action="Index">
        <table cellpadding="0" cellspacing="0">
            <tr>
                <td>Name: </td>
                <td>
                    <input type="text" asp-for="Name" />
                </td>
            </tr>
            <tr>
                <td>Country: </td>
                <td>
                    <select asp-for="Country">
                        <option value="Please select">Please select</option>
                        <option value="United States">United States</option>
                        <option value="India">India</option>
                        <option value="France">France</option>
                        <option value="Russia">Russia</option>
                    </select>
                </td>
            </tr>
            <tr>
                <td></td>
                <td><input type="submit" value="Submit" /></td>
            </tr>
        </table>
    </form>
    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
    @if (Model != null)
    {
        <script type="text/javascript">
            $(function () {
                alert("Inserted Customer ID: " + @Model.CustomerId);
            });
        </script>
    }
</body>
</html>
 
 

Screenshots

The Form

Insert data into MySQL Database with Stored Procedure in ASP.Net Core
 

Record after Insert in database

Insert data into MySQL Database with Stored Procedure in ASP.Net Core
 
 

Downloads

Download Code