Update a MySQL table Using C# Tutorial and Source code

Update a MySQL table Using C# Tutorial and Source code

In this tutorial I will show you how to update data in MySQL using C# in a simple way. Let’s follow tutorial below.

Step 1:

Create Project And Add Reference To C# WinForms Project. (visit the link to the first tutorial on how to add reference to our C# project)

How to connect MySQL Database to C# Tutorial and Source code

Step 2:

Open MySQL Workbench, right click and create schema (new database), give database name as “sampledb” and create table in database and give a name as “information”, then create columns id, emp_id, name, designation, username and password and then insert data into table.

visit the link below on the tutorial on how to insert record in mysql and c#

Insert or Save Data into MySQL Database using C#

Step 3:

Back to the windows forms application and design information forms like this

• txtemp_id
• txtname
• txtdesignation
• txtusername
• txtpassword
• btnadd
• btnedit

Step 4:

Source code for Edit button(btnedit) clicked event:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using MySql.Data.MySqlClient;

namespace CSHARP_FULL_COURSE_WITH_MYSQL_DATABASE
{
    public partial class information : Form
    {
public information ()
        {
            InitializeComponent();
        }
        private void btnedit_Click(object sender, EventArgs e)
        {
        MySqlConnection con = new MySqlConnection("datasource= localhost; database=sampledb;port=3306; username = root; password= db1234"); //open connection
        con.Open();
        MySqlCommand cmd = new MySqlCommand("Update login set name = '"+ txtname.Text +"',designation='"+ txtdeisgnation.Text +"',username='"+ txtusername.Text +"',password='"+ txtpassword.Text +"' where emp_id='"+ txtemp_id.Text +"'",con);
        cmd.ExecuteNonQuery();
        cmd.Dispose();
        txtempid.Text = string.Empty;
        txtname.Text = string.Empty;
        txtdeisgnation.Text = string.Empty;
        txtusername.Text = string.Empty;
        txtpassword.Text = string.Empty;
        con.Close();
        MessageBox.Show("Successfully Updated","VINSMOKE MJ",MessageBoxButtons.OK,MessageBoxIcon.Information);
   }
}
}

Code Explanation:

Update a MySQL table Using C# Free Download Source code

This code is for updating information from database.

Mark Jaylo

markjaylo26@gmail.com

https://www.youtube.com/c/VinsmokeTechnology

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