private void Product_Add_Button_Click(object sender, EventArgs e)
{
data.Them();
ProductUpdate update = new ProductUpdate();
update.ShowDialog();
}
private void Staff_Add_Button_Click(object sender, EventArgs e)
{
data.Them();
StaffUpdate update = new StaffUpdate();
update.ShowDialog();
}
private void Bill_Add_Button_Click(object sender, EventArgs e)
{
data.Them();
BillUpdate update = new BillUpdate();
update.ShowDialog();
}
private void Customer_Add_Button_Click(object sender, EventArgs e)
{
data.Them();
CustomerUpdate update = new CustomerUpdate();
update.ShowDialog();
}