SQL Server Database Connection in Windows Forms

I will start this (the first) tutorial by showing how to create a SQL Server database connection. Here I will explain step-by-step. Use the following procedure.

Step 1: Create a Windows Forms Form

Open Visual Studio and create a new project and select Windows Forms application and provide it the name "First_Csharp app".



Step 2: Drag and drop a button.

Now from the toolbox drag and drop a button and click on the button.


Step 3: Database table

Create a database table in SQL Server. Here the database name is "windowapp" and "tablename" is the data.

Step 4: Code for button click.

First insert a namespace "using System.Data.SqlClient".

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

{