private void BtnPurchase(object sender, RoutedEventArgs e)
{
if (!txtTotVatInc.Text.Equals(""))
{
if (!txtAmout.Text.Equals(""))
{
if (Double.Parse(txtTotVatInc.Text) < Double.Parse(txtAmout.Text))
{
txtChange.Text = da.Buy(Double.Parse(txtTotVatInc.Text), Double.Parse(txtAmout.Text)).ToString();
txtChange.Text = (Math.Round(Double.Parse(txtChange.Text), 2)).ToString();
BuyFinished = true;
da.DecreaseUnitInStock();
da.SaveInvoice(idlog);
}
else
{
MessageBox.Show("Insuficient amount please add");
}
}
else
{
MessageBox.Show("Please enter amount rendered");
}
}
else
{
MessageBox.Show("Please scan items");
}
}