I am relatively new to Visual Studio 2010 and new as well to the C# language. I am currently working on a project and have reached a point where I cannot see why my code with its conditions does not finally do the "Check In" procedure. It's a relatively
simple auto rental program where the code can be written once and the "variables" allow change as well so there should be no need of a program ever again. I have come to this part of my "snag" and cannot seem to see a way to make it work.
I had a friend who programs say it's probably something simple I am overlooking. So I will post it here and see the solutions from a different perspective. Here is the following code....the code which allows the calculations to be done on check in right on
this line of code
if (dateTimeInTextBox.Text != "" && odomInTextBox.Text != "")
If the conditions are met....I do not see why the code will not execute...could it be my DateTime or is it something else. I would appreciate any help with this problem.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace Virginia_Auto_Rental
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void calculateButton_Click(object sender, EventArgs e)
{
int /*hoursInteger,*/ daysInteger, weeksInteger, monthsInteger;
decimal /*hoursRateDecimal, */ daysRateDecimal,
/*hoursChargedDecimal, */ daysChargedDecimal, weeksChargedDecimal,
monthsChargedDecimal, odomInDecimal, odomOutDecimal, milesDrivenDecimal,
milesAllowedDecimal, excessMilesDecimal, excessMilesRateDecimal, excessMilesChargedDecimal, cdwRateDecimal, cdwChargedDecimal,
gasDecimal, gasChargedDecimal, subtotalDecimal, SubtotalDecimal, Subtotal1Decimal, Subtotal2Decimal, Subtotal3Decimal, salesTaxRateDecimal,
addChargeDecimal, minusChargeDecimal, depositAmountRateDecimal, netDueVARDecimal, prePaidRentDecimal, daysSavedDecimal, daysSavedAmountDecimal, daysAddedDecimal,
daysPaidDecimal, extraDaysDecimal, extraCDWDecimal, subDecimal, SubDecimal, Sub1Decimal, Sub2Decimal, Sub3Decimal, Sub4Decimal, newNetDueVarDecimal, newPrePaidRentDecimal,
netDueYouDecimal, totalDaysDecimal, totalDaysRentedDecimal, totalCDWChargedDecimal;
double daysAddDouble, weeksAddDouble, monthsAddDouble;
if (dateTimeOutTextBox.Text != "")
{
DateTime dateTimeOutDateTime;
string.Format("MM'/'dd'/'yyyy hh':'mm tt");
dateTimeOutDateTime = DateTime.Parse(dateTimeOutTextBox.Text);
}
else
{
DateTime dateTimeOutDateTime;
string.Format("MM'/'dd'/'yyyy hh':'mm tt");
dateTimeOutDateTime = DateTime.Now;
dateTimeOutTextBox.Text = dateTimeOutDateTime.ToString("MM'/'dd'/'yyyy hh':'mm tt");
/* try
{
//Convert input variable to numeric and assign to a variable.
hoursInteger = int.Parse(hoursTextBox.Text);
try
{
//Convert input variable to numeric and assign to a variable.
hoursRateDecimal = decimal.Parse(hoursRateTextBox.Text); */
try
{
//Convert input variable to numeric and assign to a variable.
daysInteger = int.Parse(daysTextBox.Text);
try
{
//Convert input variable to numeric and assign to a variable.
daysRateDecimal = decimal.Parse(daysRateTextBox.Text);
try
{
//Convert input variable to numeric and assign to a variable.
weeksInteger = int.Parse(weeksTextBox.Text);
try
{
//Convert input variable to numeric and assign to a variable.
monthsInteger = int.Parse(monthsTextBox.Text);
try
{
//Convert input variable to numeric and assign to a variable
cdwRateDecimal = decimal.Parse(cdwRateTextBox.Text);
try
{
//Convert the input variable to numeric and assign to a variable
odomOutDecimal = decimal.Parse(odomOutTextBox.Text);
try
{
//Convert input variable to numeric and assign to a variable.
excessMilesRateDecimal = decimal.Parse(perMileRateTextBox.Text);
try
{
//Convert the input variable to numeric and assign to a variable
milesAllowedDecimal = decimal.Parse(milesAllowedTextBox.Text);
try
{
//Convert the input variable to numeric and assign to a variable
odomInDecimal = decimal.Parse(odomInTextBox.Text);
try
{
//Convert the input variable to numeric and assign to a variable
gasDecimal = decimal.Parse(gasTextBox.Text);
try
{
//Convert the input variable to numeric and assign to a variable
salesTaxRateDecimal = decimal.Parse(salesTaxRateTextBox.Text);
try
{
//Convert the input variable to numeric and assign to a variable
addChargeDecimal = decimal.Parse(addRateTextBox.Text);
try
{
//Convert the input variable to numeric and assign to a variable
minusChargeDecimal = decimal.Parse(minusRateTextBox.Text);
try
{
//Convert the input variable to numeric and assign to a variable
depositAmountRateDecimal = decimal.Parse(depositAmountTextBox.Text);
if (daysInteger > 0 && weeksInteger == 0 && monthsInteger == 0)
{
//Perform the calculations
daysSavedDecimal = (daysInteger / 7);
daysSavedAmountDecimal = daysSavedDecimal * daysRateDecimal;
daysChargedDecimal = (daysInteger * daysRateDecimal) - daysSavedAmountDecimal;
cdwChargedDecimal = daysInteger * cdwRateDecimal;
milesDrivenDecimal = odomInDecimal - odomOutDecimal;
excessMilesDecimal = milesDrivenDecimal - milesAllowedDecimal;
if (excessMilesDecimal < 0)
{
excessMilesDecimal = 0;
}
excessMilesChargedDecimal = excessMilesDecimal * excessMilesRateDecimal;
gasChargedDecimal = gasDecimal;
subtotalDecimal = excessMilesChargedDecimal + daysChargedDecimal + cdwChargedDecimal + gasChargedDecimal;
SubtotalDecimal = (subtotalDecimal * salesTaxRateDecimal) + subtotalDecimal;
Subtotal1Decimal = SubtotalDecimal + addChargeDecimal;
Subtotal2Decimal = Subtotal1Decimal - minusChargeDecimal;
Subtotal3Decimal = Subtotal2Decimal + depositAmountRateDecimal;
netDueVARDecimal = Subtotal3Decimal;
prePaidRentDecimal = Subtotal3Decimal - depositAmountRateDecimal;
//Format the answers
daysChargesTextBox.Text = daysChargedDecimal.ToString("C");
cdwRateTextBox.Text = cdwRateDecimal.ToString("N");
cdwChargesTextBox.Text = cdwChargedDecimal.ToString("C");
milesDrivenTextBox.Text = milesDrivenDecimal.ToString("N");
excessMilesTextBox1.Text = excessMilesDecimal.ToString("N");
excessMilesTextBox2.Text = excessMilesDecimal.ToString("N");
perMileChargesTextBox.Text = excessMilesChargedDecimal.ToString("C");
gasChargesTextBox.Text = gasChargedDecimal.ToString("C");
subTotalTextBox.Text = subtotalDecimal.ToString("C");
salesTaxChargesTextBox.Text = SubtotalDecimal.ToString("C");
addChargesTextBox.Text = Subtotal1Decimal.ToString("C");
minusChargesTextBox.Text = Subtotal2Decimal.ToString("C");
depositChargesTextBox.Text = Subtotal3Decimal.ToString("C");
netDueVARTextBox.Text = netDueVARDecimal.ToString("C");
prePaidRentTextBox.Text = prePaidRentDecimal.ToString("C");
depositTextBox.Text = depositAmountRateDecimal.ToString("C");
//Calculate Date/Times
TimeSpan days = new System.TimeSpan(daysInteger);
daysAddDouble = double.Parse(daysTextBox.Text);
DateTime daysAnswer = dateTimeOutDateTime.AddDays(daysAddDouble);
dateTimeDueInTextBox.Text = daysAnswer.ToString("MM'/'dd'/'yyyy hh':'mm tt");
if (dateTimeInTextBox.Text != "" && odomInTextBox.Text != "")
{
addChargesTextBox.Clear();
minusChargesTextBox.Clear();
try
{
//Convert input variable to DateTime and assign to a variable.
DateTime dateTimeInDateTime = DateTime.Parse(dateTimeInTextBox.Text);
System.DateTime date1 = DateTime.Parse(dateTimeOutTextBox.Text);
System.DateTime date2 = DateTime.Parse(dateTimeDueInTextBox.Text);
System.DateTime date3 = dateTimeInDateTime;
System.TimeSpan daysAdded = date3.Subtract(date2);
System.TimeSpan daysPaid = date2.Subtract(date1);
daysAddedDecimal = Convert.ToDecimal(TimeSpan.Parse("daysAdded").TotalDays);
daysPaidDecimal = Convert.ToDecimal(TimeSpan.Parse("daysPaid").TotalDays);
totalDaysDecimal = daysAddedDecimal + daysPaidDecimal;
totalDaysRentedDecimal = totalDaysDecimal * daysRateDecimal;
extraDaysDecimal = (daysAddedDecimal * daysRateDecimal);
extraCDWDecimal = (daysAddedDecimal * cdwRateDecimal);
totalCDWChargedDecimal = extraCDWDecimal + cdwChargedDecimal;
subDecimal = excessMilesChargedDecimal + totalDaysRentedDecimal + totalCDWChargedDecimal + gasChargedDecimal;
SubDecimal = (subDecimal * salesTaxRateDecimal) + subDecimal;
Sub1Decimal = -totalDaysRentedDecimal - totalCDWChargedDecimal;
Sub2Decimal = Sub1Decimal + addChargeDecimal;
Sub3Decimal = Sub2Decimal - minusChargeDecimal;
Sub4Decimal = Sub3Decimal - depositAmountRateDecimal;
newNetDueVarDecimal = Sub4Decimal;
newPrePaidRentDecimal = prePaidRentDecimal + Sub4Decimal;
if (newNetDueVarDecimal < 0)
{
netDueYouDecimal = (Sub4Decimal * -1);
netDueYouTextBox.Text = netDueYouDecimal.ToString("C");
}
//Format the answers
daysTextBox.Text = totalDaysDecimal.ToString("N");
daysChargesTextBox.Text = totalDaysRentedDecimal.ToString("C");
cdwRateTextBox.Text = cdwRateDecimal.ToString("N");
cdwChargesTextBox.Text = totalCDWChargedDecimal.ToString("C");
milesDrivenTextBox.Text = milesDrivenDecimal.ToString("N");
excessMilesTextBox1.Text = excessMilesDecimal.ToString("N");
excessMilesTextBox2.Text = excessMilesDecimal.ToString("N");
perMileChargesTextBox.Text = excessMilesChargedDecimal.ToString("C");
gasChargesTextBox.Text = gasChargedDecimal.ToString("C");
subTotalTextBox.Text = subDecimal.ToString("C");
salesTaxChargesTextBox.Text = SubDecimal.ToString("C");
addChargesTextBox.Text = Sub2Decimal.ToString("C");
minusChargesTextBox.Text = Sub3Decimal.ToString("C");
depositChargesTextBox.Text = depositAmountRateDecimal.ToString("C");
netDueVARTextBox.Text = newNetDueVarDecimal.ToString("C");
prePaidRentTextBox.Text = newPrePaidRentDecimal.ToString("C");
depositTextBox.Text = depositAmountRateDecimal.ToString("C");
}
catch
{
MessageBox.Show("Date Times must be formatted properly, MM/dd/yyyy hh:mm tt Which is double digits for Month, double digits for days then four edigits for Year then one space and double digits for hours, a colon, then double digits for minutes, then one space and capital AM or PM", "Data Entry Error", MessageBoxButtons.OK);
dateTimeInTextBox.Focus();
dateTimeInTextBox.SelectAll();
}
}
else if (daysInteger == 0 && weeksInteger > 0 && monthsInteger == 0)
{
//Perform all calculations
weeksChargedDecimal = weeksInteger * (daysRateDecimal * 6);
cdwChargedDecimal = (weeksInteger * 7) * cdwRateDecimal;
milesDrivenDecimal = odomInDecimal - odomOutDecimal;
excessMilesDecimal = milesDrivenDecimal - milesAllowedDecimal;
if (excessMilesDecimal < 0)
{
excessMilesDecimal = 0;
}
excessMilesChargedDecimal = excessMilesDecimal * excessMilesRateDecimal;
gasChargedDecimal = gasDecimal;
subtotalDecimal = excessMilesChargedDecimal + weeksChargedDecimal + cdwChargedDecimal + gasChargedDecimal;
SubtotalDecimal = (subtotalDecimal * salesTaxRateDecimal) + subtotalDecimal;
Subtotal1Decimal = SubtotalDecimal + addChargeDecimal;
Subtotal2Decimal = Subtotal1Decimal - minusChargeDecimal;
Subtotal3Decimal = Subtotal2Decimal + depositAmountRateDecimal;
netDueVARDecimal = Subtotal3Decimal;
prePaidRentDecimal = Subtotal3Decimal - depositAmountRateDecimal;
//Format the answers
weeksRateTextBox.Text = weeksChargedDecimal.ToString("N");
weeksChargesTextBox.Text = weeksChargedDecimal.ToString("C");
cdwRateTextBox.Text = cdwRateDecimal.ToString("N");
cdwChargesTextBox.Text = cdwChargedDecimal.ToString("C");
milesDrivenTextBox.Text = milesDrivenDecimal.ToString("N");
excessMilesTextBox1.Text = excessMilesDecimal.ToString("N");
excessMilesTextBox2.Text = excessMilesDecimal.ToString("N");
perMileChargesTextBox.Text = excessMilesChargedDecimal.ToString("C");
gasChargesTextBox.Text = gasChargedDecimal.ToString("C");
subTotalTextBox.Text = subtotalDecimal.ToString("C");
salesTaxChargesTextBox.Text = SubtotalDecimal.ToString("C");
addChargesTextBox.Text = Subtotal1Decimal.ToString("C");
minusChargesTextBox.Text = Subtotal2Decimal.ToString("C");
depositChargesTextBox.Text = Subtotal3Decimal.ToString("C");
netDueVARTextBox.Text = netDueVARDecimal.ToString("C");
prePaidRentTextBox.Text = prePaidRentDecimal.ToString("C");
depositTextBox.Text = depositAmountRateDecimal.ToString("C");
//Calculate Date/Times
TimeSpan weeks = new System.TimeSpan(weeksInteger);
weeksAddDouble = double.Parse(weeksTextBox.Text);
weeksAddDouble = weeksAddDouble * 7;
DateTime weeksAnswer = dateTimeOutDateTime.AddDays(weeksAddDouble);
dateTimeDueInTextBox.Text = weeksAnswer.ToString("MM'/'dd'/'yyyy hh':'mm tt");
}
else if (daysInteger == 0 && weeksInteger == 0 && monthsInteger > 0)
{
//Perform all calculations
monthsChargedDecimal = monthsInteger * (daysRateDecimal * 26);
cdwChargedDecimal = (monthsInteger * 30) * cdwRateDecimal;
milesDrivenDecimal = odomInDecimal - odomOutDecimal;
excessMilesDecimal = milesDrivenDecimal - milesAllowedDecimal;
if (excessMilesDecimal < 0)
{
excessMilesDecimal = 0;
}
excessMilesChargedDecimal = excessMilesDecimal * excessMilesRateDecimal;
gasChargedDecimal = gasDecimal;
subtotalDecimal = excessMilesChargedDecimal + monthsChargedDecimal + cdwChargedDecimal + gasChargedDecimal;
SubtotalDecimal = (subtotalDecimal * salesTaxRateDecimal) + subtotalDecimal;
Subtotal1Decimal = SubtotalDecimal + addChargeDecimal;
Subtotal2Decimal = Subtotal1Decimal - minusChargeDecimal;
Subtotal3Decimal = Subtotal2Decimal + depositAmountRateDecimal;
netDueVARDecimal = Subtotal3Decimal;
prePaidRentDecimal = Subtotal3Decimal - depositAmountRateDecimal;
//Format the answers
monthsRateTextBox.Text = monthsChargedDecimal.ToString("C");
monthsChargesTextBox.Text = monthsChargedDecimal.ToString("C");
cdwRateTextBox.Text = cdwRateDecimal.ToString("N");
cdwChargesTextBox.Text = cdwChargedDecimal.ToString("C");
milesDrivenTextBox.Text = milesDrivenDecimal.ToString("N");
excessMilesTextBox1.Text = excessMilesDecimal.ToString("N");
excessMilesTextBox2.Text = excessMilesDecimal.ToString("N");
perMileChargesTextBox.Text = excessMilesChargedDecimal.ToString("C");
gasChargesTextBox.Text = gasChargedDecimal.ToString("C");
subTotalTextBox.Text = subtotalDecimal.ToString("C");
salesTaxChargesTextBox.Text = SubtotalDecimal.ToString("C");
addChargesTextBox.Text = Subtotal1Decimal.ToString("C");
minusChargesTextBox.Text = Subtotal2Decimal.ToString("C");
depositChargesTextBox.Text = Subtotal3Decimal.ToString("C");
netDueVARTextBox.Text = netDueVARDecimal.ToString("C");
prePaidRentTextBox.Text = prePaidRentDecimal.ToString("C");
depositTextBox.Text = depositAmountRateDecimal.ToString("C");
//Calculate Date/Time
TimeSpan months = new System.TimeSpan(monthsInteger);
monthsAddDouble = double.Parse(monthsTextBox.Text);
monthsAddDouble = monthsAddDouble * 30;
DateTime monthsAnswer = dateTimeOutDateTime.AddDays(monthsAddDouble);
dateTimeDueInTextBox.Text = monthsAnswer.ToString("MM'/'dd'/'yyyy hh':'mm tt");
}
}
}
catch
{
MessageBox.Show("Decimal numbers or whole numbers allowed", "Data Entry Error", MessageBoxButtons.OK);
depositAmountTextBox.Focus();
depositAmountTextBox.SelectAll();
}
}
catch
{
MessageBox.Show("Decimal numbers or whole numbers allowed", "Data Entry Error", MessageBoxButtons.OK);
minusRateTextBox.Focus();
minusRateTextBox.SelectAll();
}
}
catch
{
MessageBox.Show("Decimal numbers or whole numbers allowed", "Data Entry Error", MessageBoxButtons.OK);
addRateTextBox.Focus();
addRateTextBox.SelectAll();
}
}
catch
{
MessageBox.Show("You must begin with a decimal point followed by your Rate", "Data Entry Error", MessageBoxButtons.OK);
salesTaxRateTextBox.Focus();
salesTaxRateTextBox.SelectAll();
}
}
catch
{
MessageBox.Show("Decimal numbers or whole numbers allowed", "Data Entry Error", MessageBoxButtons.OK);
gasTextBox.Focus();
gasTextBox.SelectAll();
}
}
catch
{
MessageBox.Show("Decimal numbers or whole numbers allowed", "Data Entry Error", MessageBoxButtons.OK);
odomInTextBox.Focus();
odomInTextBox.SelectAll();
}
}
catch
{
MessageBox.Show("Decimal numbers or whole numbers allowed", "Data Entry Error", MessageBoxButtons.OK);
milesAllowedTextBox.Focus();
milesAllowedTextBox.SelectAll();
}
}
catch
{
MessageBox.Show("You must begin with a decimal point followed by your Rate", "Data Entry Error", MessageBoxButtons.OK);
perMileRateTextBox.Focus();
perMileRateTextBox.SelectAll();
}
}
catch
{
MessageBox.Show("Decimal numbers or whole numbers allowed", "Data Entry Error", MessageBoxButtons.OK);
odomOutTextBox.Focus();
odomOutTextBox.SelectAll();
}
}
catch
{
MessageBox.Show("Decimal numbers or whole numbers allowed", "Data Entry Error", MessageBoxButtons.OK);
cdwRateTextBox.Focus();
cdwRateTextBox.SelectAll();
}
}
catch
{
MessageBox.Show("Whole numbers only!", "Data Entry Error", MessageBoxButtons.OK);
monthsTextBox.Focus();
monthsTextBox.SelectAll();
}
}
catch
{
MessageBox.Show("Whole numbers only!", "Data Entry Error", MessageBoxButtons.OK);
weeksTextBox.Focus();
weeksTextBox.SelectAll();
}
}
catch
{
//Invalid Entry
MessageBox.Show("Numeric Data and Decimal Points Only Allowed", "Data Entry Alert", MessageBoxButtons.OK);
daysRateTextBox.Focus();
daysRateTextBox.SelectAll();
}
}
catch
{
MessageBox.Show("Whole numbers only!", "Data Entry Error", MessageBoxButtons.OK);
daysTextBox.Focus();
daysTextBox.SelectAll();
}
}
}
}
}