private void button1_Click(object sender, EventArgs e)
{
MydatabaseDataContext sr = new MydatabaseDataContext(@"Data Source=(LocalDB)\v11.0;AttachDbFilename=C:\Users\lenovo\Documents\Visual Studio 2012\Projects\car\car\login.mdf;Integrated Security=True");
Stock_Register s = new Stock_Register();
s.Date = Convert.ToDateTime(textBox1.Text);
s.Type_of_Car = textBox2.Text;
s.Model = textBox3.Text;
s.Total_Num = int.Parse(textBox4.Text);
s.Sales_Number = int.Parse(textBox5.Text);
s.Current_Stock = int.Parse(textBox6.Text);
sr.Stock_Registers.InsertOnSubmit(s);
sr.SubmitChanges();
dataGridView1.DataSource = sr.Stock_Registers;
}
partial void UpdateStock_Register(Stock_Register instance);
partial void DeleteStock_Register(Stock_Register instance);
partial void InsertStock_Register(Stock_Register instance);