In this article I will explain with an example, how to update data into MySQL database with Stored Procedure using Dapper library in ASP.Net MVC.
Note: For more details on how to use MySQL database in ASP.Net MVC, please refer my article Download, install and reference MySQL Connector in ASP.Net MVC.
 
 

Installing Dapper package using Nuget

In order to install Dapper library using Nuget, please refer my article Install Dapper from Nuget in Visual Studio.
 
 

Database

I have made use of the following table Customers with the schema as follows.
ASP.Net MVC: Update with Stored Procedure from MySql Database using Dapper
 
I have already inserted few records in the table.
ASP.Net MVC: Update with Stored Procedure from MySql Database using Dapper
 
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 Update data into the MySQL database table.
This Stored Procedure accepts CustomerId, Name and Country parameters, which are used to UPDATE the records in Customers Table.
DELIMITER //
CREATE PROCEDURE Customers_UpdateCustomer(
    IN CustomerId INT,
    IN Name VARCHAR(100) ,
    IN Country VARCHAR(50)
)
BEGIN
    UPDATE Customers
    SET Name = Name,
        Country = Country
    WHERE Customers.CustomerId = CustomerId;
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 Dapper;
using System.Data;
using System.Configuration;
using MySql.Data.MySqlClient;
 
 

Controller

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 method accepts CustomerModel class object as a parameter.
Inside this Action method, the name of the Stored Procedure and the CustomerModel class object is passed to the Execute method of the Dapper library which then updates the record in the Customers Table.
Note: For more details on Execute method, please refer my article Understanding Dapper Execute in MySQL in C# and VB.Net.
 
Finally, based on whether the record is updated or not an appropriate message is set into ViewBag object and View is returned.
public class HomeController : Controller
{
    // GET: Home
    public ActionResult Index()
    {
        return View();
    }
 
    [HttpPost]
    public ActionResult Index(CustomerModel customer)
    {
        string spName = "Customers_UpdateCustomer";
        string constr = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
        using (MySqlConnection con = new MySqlConnection(constr))
        {
            int i = con.Execute(spName, customer, commandType: CommandType.StoredProcedure);
            if (i > 0)
            {
                ViewBag.Message = "Customer record updated.";
            }
            else
            {
                ViewBag.Message = "Customer not found.";
            }
        }
        return View();
    }
}
 
 

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 Html.BeginForm method with the following parameters.
ActionName – Name of the Action. In this case the name is Index.
ControllerName – Name of the Controller. In this case the name is Home.
FormMethod – 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 three TextBoxes created using Html.TextBoxFor method and a Submit button.
 

Submitting the Form

When the Submit Button is clicked, the ViewBag object is checked for NULL and if it is not NULL then, the value of the ViewBag object is displayed using JavaScript Alert Message Box.
@model Dapper_Update_SP_MySQL_MVC.Models.CustomerModel
@{
    Layout = null;
}
 
<!DOCTYPE html>
 
<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
</head>
<body>
    @using (Html.BeginForm("Index", "Home", FormMethod.Post))
    {
        <table cellpadding="1" cellspacing="1">
            <tr>
                <td>
                    Id<br />
                    @Html.TextBoxFor(m => m.CustomerId, new { style = "width:60px;" })
                </td>
                <td>
                    Name<br />
                    @Html.TextBoxFor(m => m.Name, new { style = "width:150px;" })
                </td>
                <td>
                    Country:<br />
                    @Html.TextBoxFor(m => m.Country, new { style = "width:150px;" })
                </td>
                <td>
                    <br />
                    <input type="submit" value="Update" />
                </td>
            </tr>
        </table>
        if (ViewBag.Message != null)
        {
            <script type="text/javascript">
                window.onload = function () {
                    alert("@ViewBag.Message");
                };
            </script>
        }
    }
</body>
</html>
 
 

Screenshot

ASP.Net MVC: Update with Stored Procedure from MySql Database using Dapper
 
 

Downloads

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