private void button2AddSales_Click(object sender, EventArgs e)
{
if (textBox2_addSales.Text == "")
{
MessageBox.Show("Please, input how much money you want to add as Sales");
}
else
{
int r = controllerObj.AddSales((int)comboBox1.SelectedValue, Convert.ToDouble(textBox2_addSales.Text));
if (r > 0)
{
MessageBox.Show("Sales added successfuly");
}
else
{
MessageBox.Show("Error adding Sales");
}
}
}