private void button1_Click(object sender, EventArgs e)
{
double Subtotal;
double DiscountPercent;
double DiscountAmount;
double InvoiceTotal;
Subtotal = double.Parse(txtSubtotal.Text);
if (Subtotal >= 500)
{
DiscountPercent = 0.2;
}
else if (Subtotal >= 250 && Subtotal < 500)
{
DiscountPercent = 0.15;
}
else if (Subtotal >= 100 && Subtotal < 250)
{
DiscountPercent = 0.1;
}
else
{
DiscountPercent = 0.0;
}
DiscountAmount = Subtotal * DiscountPercent;
InvoiceTotal = Subtotal - DiscountAmount;
txtDiscountPercent.Text = DiscountPercent.ToString("p1"); //p1 means percentage
txtDiscountAmount.Text = "$" + DiscountAmount.ToString();
txtTotal.Text = "$" + InvoiceTotal.ToString();
txtResult.Text = "Dear Customer you have to pay: $" + InvoiceTotal.ToString();
}
//TOSTRING (with delimitter)
public string ToString(string delim)
{
return(RecordType + delim +
VendorCode + delim +
LocationCode + delim +
PurchaseOrderNo + delim +
((Object)ExpectedDeliveryDate ?? " ") + delim +
VendorInvoiceNo + delim +
InvoiceDate.ToString("MM'/'dd'/'yyyy") + delim + //11/16/2016 (forces the "/" separator)
InvoiceTotal.ToString("0.00") + delim + //format (two decimal places)
(TaxGlDescription ?? " ") + delim +
((Object)TaxValue ?? " ") + delim +
(FreightShippingGlDescription ?? " ") + delim +
((Object)FreightShippingValue ?? " ") + delim +
Misc1GlDescription + delim +
Misc1Value.ToString("0.00"));
}
//TOSTRING OVERRIDE
public override string ToString()
{
return(RecordType + "\t" +
VendorCode + "\t" +
LocationCode + "\t" +
PurchaseOrderNo + "\t" +
((Object)ExpectedDeliveryDate ?? " ") + "\t" +
VendorInvoiceNo + "\t" +
InvoiceDate.ToString("MM'/'dd'/'yyyy") + "\t" + //11/16/2016 (forces the "/" separator)
InvoiceTotal.ToString("0.00") + "\t" + //format (two decimal places)
(TaxGlDescription ?? " ") + "\t" +
//(handle NULL value and converting (double? to double) in the correct format)
MyDoubleToString(TaxValue) + "\t" +
//((Object)TaxValue ?? " ") + "\t" +
(FreightShippingGlDescription ?? " ") + "\t" +
//(handle NULL value and converting (double? to double) in the correct format)
MyDoubleToString(FreightShippingValue) + "\t" +
//((Object)FreightShippingValue ?? " ") + "\t" +
Misc1GlDescription + "\t" +
Misc1Value.ToString("0.00"));
}