Edit_Update Data From a Database in Windows Forms

Here, I will explain Edit_Update data from a database in a Windows Forms form. Before this I explained How to insert data into database using code.

Step 1: Registration form with update button

Drag and down a button from the toolbox and provide it a name such as Update.

Step 2: Code

Double-click on the update button and write the code, the database is the same as shown you in Insert Data Into Database in Windows Forms.

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.Data.SqlClient;

namespace First_Csharp_app

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void Update_Click(object sender, EventArgs e)

{

SqlConnection con = new SqlConnection(str);

String str = "server=MUNESH-PC;database=windowapp;UID=sa;password=123";

String query = "update set Name = '" + this.name_txt.Text + "', Surname= '" + this.surname_txt.Text + "',Age= '" + this.Age_txt.Text + "' where ID= '" + this.id_txt.Text + "' ";

SqlCommand cmd = new sqComamnd(query, con);

SqlDataReader dbr;

try

{

con.open();

dbr = cmd.ExecuteReader();

MessageBox.Show("Updated data");

while (dbr.read())

{

}

catch (Exception es)

{

MessageBox.Show(es.Message);

}

Step 3: Output

Run your program and click on the update button.

You can also find this tutorial on my blog_munesh.

Edit_Update Data From a Database in Windows Forms

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