private void btnConfirm_Click_1(object sender, EventArgs e)
{
AdminDB obj = new AdminDB(
tbName.Text,
tbSername.Text,
tbMiddleName.Text,
tbLogin.Text,
tbPassword.Text,
tbRegDate.Text = DateTime.Now.ToString(""),
tbComment.Text,
Convert.ToInt32(((KeyValuePair <string, string>)cbGroup.SelectedItem).Key)
);
// Запишем в базу
obj.AddToDB();
// Обновим dgv
MainForm main_fm = (MainForm)Application.OpenForms["MainForm"];
main_fm.UpdateDGV_Users();
this.Close();
}