In this article I will explain with an example, how to call MySQL Stored Procedure with Parameters in ASP.Net Core MVC.
The article explains with a simple example where a Stored Procedure will be passed with a parameter and it returns the matching records. In similar way one can pass multiple parameters.
Note: For beginners in ASP.Net Core (.Net Core 7), please refer my article ASP.Net Core 7: Hello World Tutorial with Sample Program example.
 
 

Download and Install the MySQL Connector

You will need to download and install the MySQL Connector in order to connect to the MySQL database in ASP.Net Core.
Note: For details on how to download and install the MySQL Connector, please refer my article Download, install and reference MySQL Connector in ASP.Net Core.
 
 

Database

I have made use of the following table Customers with the schema as follows.
.Net Core: Call MySql Stored Procedure with Parameters in ASP.Net Core
 
I have already inserted few records in the table.
.Net Core: Call MySql Stored Procedure with Parameters 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 accepts a parameter custId Integer parameter and is matched with the CustomerId field of the Customers Table of MySQL database.
Then, the matching record is returned from Stored Procedure.
DELIMETER //
CREATE PROCEDURE Customers_GetCustomer(IN custId INT)
BEGIN
    SELECT Name
          ,Country
    FROM Customers
    WHERE CustomerId = custId;
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 methods.

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 TextBox value i.e. CustomerId as parameter.
An object of CustomerModel class is created and the connection is read from the ConnectionStrings section of the AppSettings.json file.
Note: For more details on how to read Connection String from AppSettings.json, please refer my article .Net Core 7: Read Connection String from AppSettings.json file.
 
An object of MySqlCommand class is created and CustomerId is added parameter and using ExecuteReader the records are fetched from the MySQL database.
Note: For more details on ExecuteReader, please refer my article Using MySqlCommand ExecuteReader Example in ASP.Net with C# and VB.Net.
 
Finally, 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(int customerId)
    {
        CustomerModel customer = new CustomerModel();
        string constr = this.Configuration.GetSection("ConnectionStrings")["MyConn"];
        string spName = "Customers_GetCustomerById";
        using (MySqlConnection con = new MySqlConnection(constr))
        {
            using (MySqlCommand cmd = new MySqlCommand(spName, con))
            {
                cmd.CommandType = CommandType.StoredProcedure;
                cmd.Parameters.AddWithValue("@custId", customerId);
                con.Open();
                using (MySqlDataReader sdr = cmd.ExecuteReader())
                {
                    while (sdr.Read())
                    {
                        customer = (new CustomerModel
                        {
                            Name = sdr["Name"].ToString(),
                            Country = sdr["Country"].ToString()
                        });
                    }
                }
                con.Close();
            }
        }
        return View(customer);
    }
}
 
 

View

HTML Markup

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 TextBox created and a Submit button.
 

Submitting the Form

When the Submit button is clicked then, the CustomerModel class object is checked for NULL and if it is not NULL then the fetched records are displayed in HTML Table.
@model MySQL_Call_SP_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">
        Search:
        <input type="text" name="customerId" />
        <input type="submit" value="Search" />
        <hr />
        @if (Model != null)
        {
            <table cellpadding="0" cellspacing="0">
                <tr>
                    <th>Name</th>
                    <th>Country</th>
                </tr>
                <tr>
                    <td>@Model.Name</td>
                    <td>@Model.Country</td>
                </tr>
            </table>
        }
    </form>
</body>
</html>
 
 

Screenshot

.Net Core: Call MySql Stored Procedure with Parameters in ASP.Net Core
 
 

Demo

View Demo
 
 

Downloads

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