C# Birlikte Öğrenelim

using System; using System.Data; using Microsoft.Data.SqlClient;//Install-Package Microsoft.Data.SqlClient using System.Windows.Forms; namespace Sql_Try {     public partial class Form1 : Form     {         SqlConnection sqlVT = new SqlConnection(@"Data Source=DESKTOP-0B1GIRL;Initial Catalog=My_Form;Integrated Security=True;Encrypt=True;Trust Server Certificate=True");         public Form1()         {             InitializeComponent();         }         private void button2_Click(object sender, EventArgs e)         {             Application.Exit();         }         private void button1_Click(object sender, EventArgs e)         {             string Name = textBox_isim.Text;         ...