private void btnHallTotal_Click(object sender, EventArgs e)
{
if (ValidationEvent.validateDiscountText(txtHallDiscount.Text))
{
double discount;
if (!txtHallDiscount.Text.Equals(""))
{
discount = Double.Parse(txtHallDiscount.Text);
}
else
{
discount = 1;
}
double discountPrice = Double.Parse(lblHallPrice.Text) * discount / 100;
double totalPrice = Double.Parse(lblHallPrice.Text) - discountPrice;
lblHallTotPrice.Text = totalPrice.ToString();
}
else
{
MessageBox.Show("Disount should be a number between 0 and 100", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
