private void button4_Click(object sender, EventArgs e)
{
bb.Employee_Id = Convert.ToInt16(textBox1.Text);
bb.Emp_Name = textBox2.Text;
bb.Email = textBox3.Text;
bb.Birthdate = textBox4.Text;
bb.Hiredate = textBox5.Text;
bb.Salary = textBox6.Text;
bb.Country = textBox7.Text;
bb.City = textBox8.Text;
bb.Region = textBox9.Text;
bb.delete_record3(bb.Employee_Id);
}