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Files Operations |
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Routine Operations on Files |
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As opposed to creating a file, probably the second most
regular operation performed on a file consists of opening it to read or
explore its contents. To support opening a file, the FileInfo class
is equipped with the Open() method that is overloaded with three
versions.
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If you have a text-based file and want to directly read
from it, you can use the StreamReader class that is equipped with the
Read() and the ReadLine() methods. As done for the
StreamWriter class, after using a StreamReader object, make sure
you close it.
If you have an existing file you don't need anymore, you
can delete it. This operation can be performed by calling the
FileInfo.Delete() method. Its syntax is:
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public override void Delete();
Here is an example:
using System;
using System.IO;
public class Program
{
static int Main(string[] args)
{
var fleMembers = new FileInfo("First.txt");
if (fleMembers.Exists == true)
fleMembers.Delete();
return 0;
}
}
You can make a copy of a file from one directory to
another. To do this, you can call the FileInfo.CopyTo() method that
is overloaded with two versions. The first version has the following syntax:
public FileInfo CopyTo(string destFileName);
When calling this method, specify the path or directory
that will be the destination of the copied file. Here is an example:
using System;
using System.IO;
public class Program
{
static int Main(string[] args)
{
var fleMembers = new FileInfo("Reality.txt");
var strMyDocuments =
Environment.GetFolderPath(Environment.SpecialFolder.Personal);
if (fleMembers.Exists == true)
fleMembers.CopyTo(string.Concat(strMyDocuments, "\\Federal.txt"));
return 0;
}
}
In this example, a file named Reality.txt in the
directory of the project would be retrieved and its content would be applied
to a new file named Federal.txt created in the My Documents folder of the
current user.
When calling the first version of the
FileInfo.CopyTo() method, if the file exists already, the operation
would not continue and you would simply receive a message box. If you
insist, you can overwrite the target file. To do this, you can use the
second version of this method. Its syntax is:
public FileInfo CopyTo(string destFileName, bool overwrite);
The first argument is the same as that of the first
version of the method. The second argument specifies what action to take if
the file exists already in the target directory. If you want to overwrite
it, pass the argument as true; otherwise, pass it as false.
If you copy a file from one directory to another, you
would have two copies of the same file or the same contents in two files.
Instead of copying, if you want, you can simply move the file from one
directory to another. This operation can be performed by calling the
FileInfo.MoveTo() method. Its syntax is:
public void MoveTo(string destFileName);
The argument to this method is the same as that of the
CopyTo() method. After executing this method, the FileInfo
object would be moved to the destFileName path.
Here is an example:
using System;
using System.IO;
public class Program
{
static int Main(string[] args)
{
var fleMembers = new FileInfo("pop.txt");
var strMyDocuments =
Environment.GetFolderPath(Environment.SpecialFolder.Personal);
if (fleMembers.Exists == true)
fleMembers.MoveTo(string.Concat(strMyDocuments, "\\Federal.txt"));
return 0;
}
}
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Characteristics of a File
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The Date and Time a File Was Created
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To keep track of it, after a file has been created, the
operating system makes a note of the date and the time the file was created.
This information can be valuable in other operations such as search
routines. You too are allowed to change this date and time values to those
you prefer.
As mentioned already, the OS makes sure to keep track of
the date and time a file was created. To find out what those date and time
values are, you can access the FileSystemInfo.CreationTime property.
This would be done as follows:
using System;
using System.IO;
public class Program
{
static int Main(string[] args)
{
var someFile = new FileInfo("First.txt");
DateTime dteCreationTime = someFile.CreationTime;
if (someFile.Exists == true)
Console.WriteLine("Date and Time Created: " +
dteCreationTime.ToString());
return 0;
}
}
Of course, by entering the appropriate format in the
parentheses of the ToString() method, you can get only either the
date or only the time.
If you don't like the date, the time, or both, that the
OS would have set when the file was created, you can change them. To change
one or both of these values, you can assign a desired DateTime object
to the FileSystemInfo.set_CreationTime() property.
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The Date and Time a File Was Last Accessed
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Many applications allow a user to open an existing file
and to modify it. When people work in a team or when a particular file is
regularly opened, at one particular time, you may want to know the date and
time that the file was last accessed. To get this information, you can
access the FileSystemInfo.LastAccessTime property.
If you are interested to know the last date and time a
file was modified, you can get the value of its
FileSystemInfo.LastWriteTime property.
The operating system requires that each file have a
name. In fact, the name must be specified when creating a file. This allows
the OS to catalogue the computer files. This also allows you to locate or
identify a particular file you need.
When reviewing or opening a file, to get its name, the
FileInfo class is equipped with the Name property. Here is an
example:
using System;
using System.IO;
public class Program
{
static int Main(string[] args)
{
var someFile = new FileInfo("Persons.spr");
if (someFile.Exists == true)
Console.WriteLine("The name of this file is: \"" +
someFile.Name + "\"");
return 0;
}
}
This string simply identifies a file.
With the advent of Windows 95 and later, the user
doesn't have to specify the extension of a file when creating it. Because of
the type of confusion that this can lead to, most applications assist the
user with this detail. Some applications allow the user to choose among
various extensions. For example, using Notepad, a user can open a text, a
PHP, a script, or an HTML file.
When you access a file or when the user opens one, to
know the extension of the file, you can access the value of the
FileSystemInfo.Extension property. Here is an example:
using System;
using System.IO;
public class Program
{
static int Main(string[] args)
{
var someFile = new FileInfo("Persons.spr");
if (someFile.Exists == true)
Console.WriteLine("File Extension: " + someFile.Extension);
return 0;
}
}
This would produce:
File Extension: .spr
Press any key to continue . . .
One of the routine operations the operating system
performs consists of calculating the sizes of files it holds. This
information is provided in terms of bits, kilobits, or kilobytes. To get the
size of a file, the FileInfo class is quipped with the Length
property. Here is an example of accessing it:
using System;
using System.IO;
public class Program
{
static int Main(string[] args)
{
var someFile = new FileInfo("Persons.spr");
if (someFile.Exists == true)
Console.WriteLine("File Size: " +
someFile.Length.ToString());
return 0;
}
}
Here is an example of what this would produce:
File Size: 57
Press any key to continue . . .
Besides the name of the file, it must be located
somewhere. The location of a file is referred to as its path or directory.
The FileInfo class represents this path as the DirectoryName
property. Therefore, if a file has already been created, to get its path,
you can access the value of the FileInfo.DirectoryName property.
Besides the FileInfo.Directoryname, to know the
full path to a file, you can access its FileSystemInfo.FullName
property.
Attributes are characteristics that apply to a file,
defining what can be done or must be disallowed on it. The Attributes are
primarily defined by, and in, the operating system, mostly when a file is
created. When the user accesses or opens a file, to get its attributes, you
can access the value of its FileSystemInfo.Attributes property. This
property produces a FileAttributes object.
When you create or access a file, you can specify or
change some of the attributes. To do this, you can a FileAttributes
object and assign it to the FileSystemInfo.Attributes property.
FileAttributes is an enumeration with the
following members: Archive, Compressed, Device,
Directory, Encrypted, Hidden, Normal,
NotContentIndexed, Offline, ReadOnly, ReparsePoint,
SparseFile, System, and Temporary.
A directory is a section of a medium used to delimit a
group of files. Because it is a "physical" area, it can handle operations
not available on files. In fact, there are many fundamental differences
between both:
- A file is used to contain data. A directory doesn't contain data
- A directory can contain one or more files and not vice-versa
- A directory can contain other directories
- A file can be moved from one directory to another. This operation is
not possible vice-versa since a file cannot contain a directory
The similarities of both types are:
- A directory or a file can be created. One of the restrictions is
that two files cannot have the same name inside of the same directory.
Two directories cannot have the same name inside of the same parent
directory.
- A directory or a file can be renamed. If a directory is renamed, the
"path" of its file(s) changes
- A directory or a file can be deleted. If a directory is deleted, its
files are deleted also
- A directory or a file can be moved. If a directory moves, it
"carries" all of its files to the new location
- A directory or a file can be copied. A file can be copied from one
directory to another. If a directory is copied to a new location, all of
its files are also copied to the new location
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 Application:
Introducing Directories
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- Start Microsoft Visual Studio and create a Console Application named
GeorgetownDryCleaningServices6
- To create a new class, in the Solution Explorer, right-click
GeorgetownDryCleaningServices6 -> Add -> Class...
- Set the Name to Customer and click OK
- Change the file as follows:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace GeorgetownDryCleaningServices6
{
public class Customer
{
public string Name;
public string PhoneNumber;
}
}
- To create a new class, on the main menu, click Project -> Add
Class...
- Set the Name to CleaningOrderDetails and press Enter
- Change the file as follows:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace GeorgetownDryCleaningServices6
{
public sealed class CleaningOrderDetails
{
// The date the cleaning items were deposited
public DateTime OrderDate;
public DateTime OrderTime;
// Numbers to represent cleaning items
public uint numberOfShirts;
public uint numberOfPants;
public uint NumberOtherItems;
// Price of items
public decimal priceOneShirt = 0.95M;
public decimal priceAPairOfPants = 2.95M;
public decimal priceOtherItems = 4.55M;
public decimal TaxRate = 0.0575M; // 5.75%
// Each of these sub totals will be used for cleaning items
public decimal SubTotalShirts;
public decimal SubTotalPants;
public decimal SubTotalOtherItems;
// Values used to process an order
public decimal TotalOrder;
public decimal TaxAmount;
public decimal SalesTotal;
}
}
- To save the project, on the Standard toolbar, click the Save All
button
- Accept all the defaults and click Save
Before using a directory, you must first have it. You
can use an existing directory if the operating system or someone else had
already created one. You can also create a new directory. Directories are
created and managed by various classes but the fundamental class is
Directory. Directory is a static class, which means all of its
methods are static, which means you will never need to declare an instance
of the Directory class in order to use it.
Besides the Directory class, additional
operations of folders and sub-folders can be performed using the
DirectoryInfo class.
To create a directory, you can call the
CreateDirectory() method of the Directory class. This method is
available in two versions. One of the versions uses the following syntax:
public static DirectoryInfo CreateDirectry(string path);
This method takes as argument the (complete) path of the
desired directory. Here is an example:
E:\Programs\Business Orders\Customer Information
When this method is called:
- It first checks the parent drive, in this case E.
If the drive
doesn't exist, because this method cannot create a drive, the compiler
would throw a DirectoryNotFoundException exception
- If the drive (in this case E) exists, the compiler moves to the
first directory part of the path; in this case this would be the
Programs folder in the E drive.
If the folder doesn't exist, the
compiler would create it. If that first director doesn't exist, this
means that the other directory(ies), if any, under the first don't
exist. So, the compiler would create it/them
- If the first directory exists and if there is no other directory
under that directory, the compiler would stop and would not do anything
further.
- If the directory exists and there is a sub-directory specified under
it, the compiler would check the existence of that directory.
If the
sub-directory exists, the compiler would not do anything further and
would stop.
If the sub-directory doesn't exist, the compiler would
create it
- The compiler would repeat step 4 until the end of the specified path
The Directory.CreateDirectory() method returns a
DirectoryInfo object that you can use as you see fit.
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Checking for a Directory Existence
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Before using or creating a directory, you can first
check if it exists. This is because, if a directory already exists in the
location where you want to create it, you would be prevented from creating
one with the same name. In the same way, if you just decide to directly use
a directory that doesn't exist, the operation you want to perform may fail
because the directory would not be found.
Before using or creating a directory, to first check
whether it exists or not, you can call the Directory.Exists() Boolean
method. Its syntax is:
public static bool Exists(string path);
This method receives the (complete) path of the
directory. If the path exists, the method returns true. If the directory
doesn't exist, the method returns false.
To create a directory, you can call the
CreateDirectory() method of the Directory class.
One of the most routine operations performed in a
directory consists of looking for a file. Both Microsoft Windows operating
systems and the user's intuition have different ways of addressing this
issue. The .NET Framework also provides its own means of performing this
operation, through various techniques. You can start by checking the
sub-directories and files inside of a main directory.
To look for files in a directory, the DirectoryInfo
class can assist you with its GetFiles() method, which is overloaded
with three versions.
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Application:
Using Directories and Files
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- To create a new class, in the Class View, right-click
GeorgetownCleaningOrder6 -> Add -> Class...
- Set the Name to CleaningDeposit and press Enter
- Change the file as follows:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
namespace GeorgetownDryCleaningServices6
{
public abstract class CustomerOrder
{
public abstract void ProcessOrder();
public abstract void ShowReceipt();
}
public class CleaningDeposit : CustomerOrder
{
private Customer custInfo;
public CleaningOrderDetails depot;
private decimal AmountTended;
private decimal Difference;
public CleaningDeposit()
{
this.custInfo = new Customer();
this.depot = new CleaningOrderDetails();
}
private Customer IdentifyCustomer()
{
string strCustomerName;
string strTelephoneNumber, strPhoneFormatted;
Console.Write("Enter Customer Phone Number: ");
strTelephoneNumber = Console.ReadLine();
// Remove the spaces, parentheses, if any, and dashes, if any
strTelephoneNumber = strTelephoneNumber.Replace(" ", "");
strTelephoneNumber = strTelephoneNumber.Replace("(", "");
strTelephoneNumber = strTelephoneNumber.Replace(")", "");
strTelephoneNumber = strTelephoneNumber.Replace("-", "");
if (strTelephoneNumber.Length != 10)
{
Console.WriteLine("Invalid telphone number: {0} " +
"characters instead of 10 digits",
strTelephoneNumber.Length);
return null;
}
strPhoneFormatted = "(" + strTelephoneNumber.Substring(0, 3) +
") " + strTelephoneNumber.Substring(3, 3) +
"-" + strTelephoneNumber.Substring(6, 4);
string strFilename = strTelephoneNumber + @".gcs";
string strPath = @"C:\Georgetown Cleaning Services\Customers\" +
@"\" + strFilename;
if (File.Exists(strPath))
{
FileStream stmCustomer =
File.Open(strPath, FileMode.Open, FileAccess.Read);
BinaryReader bnrCustomer = new BinaryReader(stmCustomer);
custInfo.Name = bnrCustomer.ReadString();
custInfo.PhoneNumber = bnrCustomer.ReadString();
Console.WriteLine("\n=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-");
Console.WriteLine("-/- Georgetown Cleaning Services -/-");
Console.WriteLine("------------------------------------");
Console.WriteLine("Customer Name: {0}", custInfo.Name);
Console.WriteLine("Phone Number: {0}", custInfo.PhoneNumber);
Console.WriteLine("------------------------------------\n");
}
else // If the customer information was not found in a file
{
Console.WriteLine("It looks like this is the first time you " +
"are trusting us with your cleaning order");
Directory.CreateDirectory(@"C:\Georgetown Cleaning Services\Customers");
FileStream stmCustomer = File.Create(strPath);
BinaryWriter bnwCustomer =
new BinaryWriter(stmCustomer);
Console.Write("Enter Customer Name: ");
strCustomerName = Console.ReadLine();
bnwCustomer.Write(strCustomerName);
bnwCustomer.Write(strPhoneFormatted);
custInfo.Name = strCustomerName;
custInfo.PhoneNumber = strTelephoneNumber;
}
return custInfo;
}
public override void ProcessOrder()
{
Console.WriteLine("-/- Georgetown Cleaning Services -/-");
Customer client = this.IdentifyCustomer();
try
{
Console.Write("Enter the order date(mm/dd/yyyy): ");
this.depot.OrderDate = DateTime.Parse(Console.ReadLine());
}
catch (FormatException)
{
Console.WriteLine("The value you entered is not a valid date");
}
try
{
Console.Write("Enter the order time(hh:mm AM/PM): ");
this.depot.OrderTime = DateTime.Parse(Console.ReadLine());
}
catch
{
Console.WriteLine("The value you entered is not a valid time");
}
// Request the quantity of each category of items
try
{
Console.Write("Number of Shirts: ");
this.depot.numberOfShirts =
uint.Parse(Console.ReadLine());
if (this.depot.numberOfShirts < uint.MinValue)
throw new OverflowException("Negative value not " +
"allowed for shirts");
}
catch (FormatException)
{
Console.WriteLine("The value you typed for the number of " +
"shirts is not a valid number");
}
try
{
Console.Write("Number of Pants: ");
this.depot.numberOfPants =
uint.Parse(Console.ReadLine());
}
catch (FormatException)
{
Console.WriteLine("The value you typed for the number of " +
"pair or pants is not a valid number");
}
try
{
Console.Write("Number of Other Items: ");
this.depot.NumberOtherItems = uint.Parse(Console.ReadLine());
}
catch (FormatException)
{
Console.WriteLine("The value you typed for the number of " +
"other items is not a valid number");
}
// Perform the necessary calculations
this.depot.SubTotalShirts =
this.depot.numberOfShirts * this.depot.priceOneShirt;
this.depot.SubTotalPants =
this.depot.numberOfPants * this.depot.priceAPairOfPants;
this.depot.SubTotalOtherItems =
this.depot.NumberOtherItems * this.depot.priceOtherItems;
// Calculate the "temporary" total of the order
this.depot.TotalOrder = this.depot.SubTotalShirts +
this.depot.SubTotalPants +
this.depot.SubTotalOtherItems;
// Calculate the tax amount using a constant rate
this.depot.TaxAmount = this.depot.TotalOrder * this.depot.TaxRate;
// Add the tax amount to the total order
this.depot.SalesTotal = this.depot.TotalOrder + this.depot.TaxAmount;
// Communicate the total to the user...
Console.WriteLine("\nThe Total order is: {0:C}", this.depot.SalesTotal);
// and request money for the order
try
{
Console.Write("Amount Tended? ");
AmountTended = decimal.Parse(Console.ReadLine());
}
catch (FormatException)
{
Console.WriteLine("You were asked to enter an " +
"amount of money but...");
}
// Calculate the difference owed to the customer
// or that the customer still owes to the store
Difference = AmountTended - this.depot.SalesTotal;
this.ShowReceipt();
this.Save();
}
public override void ShowReceipt()
{
Console.WriteLine();
// Display the receipt
Console.WriteLine("====================================");
Console.WriteLine("-/- Georgetown Cleaning Services -/-");
Console.WriteLine("====================================");
Console.WriteLine("Customer: {0}", this.custInfo.Name);
Console.WriteLine("Home Phone: {0}", this.custInfo.PhoneNumber);
Console.WriteLine("Order Date: {0:D}", this.depot.OrderDate);
Console.WriteLine("Order Time: {0:t}", this.depot.OrderTime);
Console.WriteLine("------------------------------------");
Console.WriteLine("Item Type Qty Unit/Price Sub-Total");
Console.WriteLine("------------------------------------");
Console.WriteLine("Shirts {0,3} {1,4} {2,6}",
this.depot.numberOfShirts,
this.depot.priceOneShirt,
this.depot.SubTotalShirts);
Console.WriteLine("Pants {0,3} {1,4} {2,6}",
this.depot.numberOfPants,
this.depot.priceAPairOfPants,
this.depot.SubTotalPants);
Console.WriteLine("Other Items {0,3} {1,4} {2,6}",
this.depot.NumberOtherItems,
this.depot.priceOtherItems,
this.depot.SubTotalOtherItems);
Console.WriteLine("------------------------------------");
Console.WriteLine("Total Order: {0,6}",
this.depot.TotalOrder.ToString("C"));
Console.WriteLine("Tax Rate: {0,6}",
this.depot.TaxRate.ToString("P"));
Console.WriteLine("Tax Amount: {0,6}",
this.depot.TaxAmount.ToString("C"));
Console.WriteLine("Net Price: {0,6}",
this.depot.SalesTotal.ToString("C"));
Console.WriteLine("------------------------------------");
Console.WriteLine("Amount Tended: {0,6}",
AmountTended.ToString("C"));
Console.WriteLine("Difference: {0,6}",
Difference.ToString("C"));
Console.WriteLine("====================================");
}
public virtual void Save()
{
string strPhoneNumber = this.custInfo.PhoneNumber;
// Remove the spaces, parentheses, and dashes
strPhoneNumber = strPhoneNumber.Replace(" ", "");
strPhoneNumber = strPhoneNumber.Replace("(", "");
strPhoneNumber = strPhoneNumber.Replace(")", "");
strPhoneNumber = strPhoneNumber.Replace("-", "");
string strMonth = depot.OrderDate.Month.ToString();
if (depot.OrderDate.Month < 10)
strMonth = "0" + strMonth;
string strDay = depot.OrderDate.Day.ToString();
if (depot.OrderDate.Day < 10)
strDay = "0" + strDay;
string strYear = depot.OrderDate.Year.ToString();
string strFilename = strMonth + strDay + strYear + @".gcs";
string strPath = @"C:\Georgetown Cleaning Services\Cleaning Orders\" +
@"\" + strPhoneNumber + @"\" + strFilename;
Directory.CreateDirectory(@"C:\Georgetown Cleaning Services\Cleaning Orders\"
+ strPhoneNumber);
FileStream stmCleaningOrder = File.Create(strPath);
BinaryWriter bnwCleaningOrder =
new BinaryWriter(stmCleaningOrder);
bnwCleaningOrder.Write(this.custInfo.Name);
bnwCleaningOrder.Write(this.custInfo.PhoneNumber);
bnwCleaningOrder.Write(this.depot.OrderDate.ToString());
bnwCleaningOrder.Write(this.depot.OrderTime.ToString());
bnwCleaningOrder.Write(this.depot.numberOfShirts.ToString());
bnwCleaningOrder.Write(this.depot.numberOfPants.ToString());
bnwCleaningOrder.Write(this.depot.NumberOtherItems.ToString());
bnwCleaningOrder.Write(this.depot.priceOneShirt.ToString());
bnwCleaningOrder.Write(this.depot.priceAPairOfPants.ToString());
bnwCleaningOrder.Write(this.depot.priceOtherItems.ToString());
bnwCleaningOrder.Write(this.depot.TaxRate.ToString());
bnwCleaningOrder.Write(this.depot.SubTotalShirts.ToString());
bnwCleaningOrder.Write(this.depot.SubTotalPants.ToString());
bnwCleaningOrder.Write(this.depot.SubTotalOtherItems.ToString());
bnwCleaningOrder.Write(this.depot.TotalOrder.ToString());
bnwCleaningOrder.Write(this.depot.TaxAmount.ToString());
bnwCleaningOrder.Write(this.depot.SalesTotal.ToString());
}
}
}
- To create a new class, in the Solution Explorer, right- click
GeorgetownCleaningOrder6 -> Add -> Class...
- Set the Name to CleaningRetrieval and press Enter
- Change the file as follows:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
namespace GeorgetownDryCleaningServices6
{
public class CleaningRetrieval
{
private Customer custInfo;
private CleaningOrderDetails depot;
private string strPhoneNumber;
public CleaningRetrieval()
{
this.custInfo = new Customer();
this.depot = new CleaningOrderDetails();
}
public virtual void Open()
{
Console.Write("Enter Receipt Number: ");
string strFilename = Console.ReadLine();
string strPath = @"C:\Georgetown Cleaning Services\Cleaning Orders\" +
@"\" + strFilename + @"\" + strFilename + ".gcs";
DirectoryInfo di =
new DirectoryInfo(@"C:\Georgetown Cleaning Services\Cleaning Orders");
FileInfo[] aryFiles = di.GetFiles("*", SearchOption.AllDirectories);
string strFileFullname = "";
bool found = false;
foreach (FileInfo fle in aryFiles)
{
if (fle.Name == (strFilename + ".gcs"))
{
found = true;
strFileFullname = fle.FullName;
}
}
if (found == true)
{
FileStream stmCleaningOrder =
File.Open(strFileFullname,
FileMode.Open,
FileAccess.Read);
BinaryReader bnrCleaningOrder = new BinaryReader(stmCleaningOrder);
this.custInfo.Name = bnrCleaningOrder.ReadString();
this.custInfo.PhoneNumber = bnrCleaningOrder.ReadString();
this.depot.OrderDate = DateTime.Parse(bnrCleaningOrder.ReadString());
this.depot.OrderTime = DateTime.Parse(bnrCleaningOrder.ReadString());
this.depot.numberOfShirts = uint.Parse(bnrCleaningOrder.ReadString());
this.depot.numberOfPants = uint.Parse(bnrCleaningOrder.ReadString());
this.depot.NumberOtherItems =
uint.Parse(bnrCleaningOrder.ReadString());
this.depot.priceOneShirt =
decimal.Parse(bnrCleaningOrder.ReadString());
this.depot.priceAPairOfPants =
decimal.Parse(bnrCleaningOrder.ReadString());
this.depot.priceOtherItems =
decimal.Parse(bnrCleaningOrder.ReadString());
this.depot.TaxRate = decimal.Parse(bnrCleaningOrder.ReadString());
this.depot.SubTotalShirts =
decimal.Parse(bnrCleaningOrder.ReadString());
this.depot.SubTotalPants =
decimal.Parse(bnrCleaningOrder.ReadString());
this.depot.SubTotalOtherItems =
decimal.Parse(bnrCleaningOrder.ReadString());
this.depot.TotalOrder = decimal.Parse(bnrCleaningOrder.ReadString());
this.depot.TaxAmount = decimal.Parse(bnrCleaningOrder.ReadString());
this.depot.SalesTotal = decimal.Parse(bnrCleaningOrder.ReadString());
this.strPhoneNumber = "(" +
this.custInfo.PhoneNumber.Substring(0, 3) +
") " +
this.custInfo.PhoneNumber.Substring(3, 3) +
"-" +
this.custInfo.PhoneNumber.Substring(6, 4);
this.ShowReceipt();
}
else
Console.WriteLine("No cleaning order of " +
"that receipt number was found");
}
internal void ShowReceipt()
{
Console.WriteLine();
// Display the receipt
Console.WriteLine("====================================");
Console.WriteLine("-/- Georgetown Cleaning Services -/-");
Console.WriteLine("====================================");
Console.WriteLine("Customer: {0}", this.custInfo.Name);
Console.WriteLine("Home Phone: {0}", this.custInfo.PhoneNumber);
Console.WriteLine("Order Date: {0:D}", this.depot.OrderDate);
Console.WriteLine("Order Time: {0:t}", this.depot.OrderTime);
Console.WriteLine("------------------------------------");
Console.WriteLine("Item Type Qty Unit/Price Sub-Total");
Console.WriteLine("------------------------------------");
Console.WriteLine("Shirts {0,3} {1,4} {2,6}",
this.depot.numberOfShirts,
this.depot.priceOneShirt,
this.depot.SubTotalShirts);
Console.WriteLine("Pants {0,3} {1,4} {2,6}",
this.depot.numberOfPants,
this.depot.priceAPairOfPants,
this.depot.SubTotalPants);
Console.WriteLine("Other Items {0,3} {1,4} {2,6}",
this.depot.NumberOtherItems,
this.depot.priceOtherItems,
this.depot.SubTotalOtherItems);
Console.WriteLine("------------------------------------");
Console.WriteLine("Total Order: {0,6}",
this.depot.TotalOrder.ToString("C"));
Console.WriteLine("Tax Rate: {0,6}",
this.depot.TaxRate.ToString("P"));
Console.WriteLine("Tax Amount: {0,6}",
this.depot.TaxAmount.ToString("C"));
Console.WriteLine("Net Price: {0,6}",
this.depot.SalesTotal.ToString("C"));
Console.WriteLine("====================================");
}
}
}
- Access the Program.cs file and change it as follows:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace GeorgetownDryCleaningServices6
{
public class Program
{
static void Main(string[] args)
{
char answer = 'q';
Console.WriteLine("Is this a new order or the customer is " +
"retrieving items previously left for cleaning?");
Console.WriteLine("0. Quit");
Console.WriteLine("1. This is a new order");
Console.WriteLine("2. The customer is retrieving an existing order");
Console.Write("Your Choice: ");
answer = char.Parse(Console.ReadLine());
switch (answer)
{
case '1':
CleaningDeposit depotOrder = new CleaningDeposit();
depotOrder.ProcessOrder();
break;
case '2':
CleaningRetrieval previousOrder = new CleaningRetrieval();
previousOrder.Open();
break;
default:
break;
}
Console.WriteLine();
}
}
}
- Execute the application and test it. Here is an example:
Is this a new order or the customer is retrieving
items previously left for cleaning?
0. Quit
1. This is a new order
2. The customer is retrieving an existing order
Your Choice: 0
Press any key to continue . . .
- Close the DOS window
- Execute the application and create a new order. Here is an example:
Is this a new order or the customer is retrieving
items previously left for cleaning?
0. Quit
1. This is a new order
2. The customer is retrieving an existing order
Your Choice: 1
-/- Georgetown Cleaning Services -/-
Enter Customer Phone Number: 202 103 0443
It looks like this is the first time you are trusting
us with your cleaning order
Enter Customer Name: Arsene Cranston
Enter the order date(mm/dd/yyyy): 11/20/2006
Enter the order time(hh:mm AM/PM): 08:12 AM
Number of Shirts: 6
Number of Pants: 4
Number of Other Items: 2
The Total order is: $28.13
Amount Tended? 30
====================================
-/- Georgetown Cleaning Services -/-
====================================
Customer: Arsene Cranston
Home Phone: 2021030443
Order Date: Monday, November 20, 2006
Order Time: 8:12 AM
------------------------------------
Item Type Qty Unit/Price Sub-Total
------------------------------------
Shirts 6 0.95 5.70
Pants 4 2.95 11.80
Other Items 2 4.55 9.10
------------------------------------
Total Order: $26.60
Tax Rate: 5.75 %
Tax Amount: $1.53
Net Price: $28.13
------------------------------------
Amount Tended: $30.00
Difference: $1.87
====================================
Press any key to continue . . .
- Remember the date you provided and close the DOS window
- Execute the application and create a new order. Here is an example:
Is this a new order or the customer is retrieving items
previously left for cleaning?
0. Quit
1. This is a new order
2. The customer is retrieving an existing order
Your Choice: 1
-/- Georgetown Cleaning Services -/-
Enter Customer Phone Number: 301-022-1077
It looks like this is the first time you are trusting
us with your cleaning order
Enter Customer Name: Helene Craft
Enter the order date(mm/dd/yyyy): 11/21/2006
Enter the order time(hh:mm AM/PM): 9:25
Number of Shirts: 3
Number of Pants: 0
Number of Other Items: 5
The Total order is: $27.07
Amount Tended? 40
====================================
-/- Georgetown Cleaning Services -/-
====================================
Customer: Helene Craft
Home Phone: 3010221077
Order Date: Tuesday, November 21, 2006
Order Time: 9:25 AM
------------------------------------
Item Type Qty Unit/Price Sub-Total
------------------------------------
Shirts 3 0.95 2.85
Pants 0 2.95 0.00
Other Items 5 4.55 22.75
------------------------------------
Total Order: $25.60
Tax Rate: 5.75 %
Tax Amount: $1.47
Net Price: $27.07
------------------------------------
Amount Tended: $40.00
Difference: $12.93
====================================
Press any key to continue . . .
- Remember the date you provided and close the DOS window
- Execute the application and choose to open an existing order. Here
is an example:
Is this a new order or the customer is retrieving
items previously left for cleaning?
0. Quit
1. This is a new order
2. The customer is retrieving an existing order
Your Choice: 2
Enter Receipt Number: 11202006
====================================
-/- Georgetown Cleaning Services -/-
====================================
Customer: Arsene Cranston
Home Phone: 2021030443
Order Date: Monday, November 20, 2006
Order Time: 8:12 AM
------------------------------------
Item Type Qty Unit/Price Sub-Total
------------------------------------
Shirts 6 0.95 5.70
Pants 4 2.95 11.80
Other Items 2 4.55 9.10
------------------------------------
Total Order: $26.60
Tax Rate: 5.75 %
Tax Amount: $1.53
Net Price: $28.13
====================================
Press any key to continue . . .
- Close the DOS window
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