Chapter 16: The System.IO Namespace

Добавил:

Teana Опубликованный материал нарушает ваши авторские права? Сообщите нам.

Вуз:

Таврический Национальный Университет им. В.И. Вернадского

Предмет:

Программирование

Файл:

C# and the NET Platform, Second Edition - Andrew Troelsen.pdf

Скачиваний:

Добавлен:

24.05.2014

Размер:

22.43 Mб

Скачать

☆

<<< < Предыдущая 36 37 38 39 40 41 42 43 44 45 46 47 4849 / 6049 50 51 52 53 54 55 56 57 58 59 60 > Следующая >>>

List of Tables

ListFileInfoof Figures

File

Index

Chapter 18 - ASP.NET Web Pages and Web Controls

Directory These types are all used to manipulate the properties for a given directory

Chapter 19 - ASP.NET Web Applications

DirectoryInfo or physical file as well as create new files and extend the current directory

Chapter 20 - XML Web Services

structure. The Directory and File types expose their functionality primarily asstatic methods. The DirectoryInfo and FileInfo types expose similar functionality from a valid object variable.

Chapter 14 - A Better Painting Framework (GDI+)

Chapter 15 - Programming with Windows Forms Controls

Table 16-1: Key Members of the System.IO Namespace

Chapter 16 - The System.IO Namespace

Creatable IO Meaning in Life

Chapter 17 - Data Access with ADO.NET

Type

Part Five - Web Applications and XML Web Services

Chapter 12 - Object Serialization and the .NET Remoting Layer

Part Four - Leveraging the .NET Libraries

As you will see during this chapter, a key set of types within the System.IO namespace focuses on the manipulation of physical directories and files. However, additional types provide support to read data from

and write data to string buffers as well as to raw memory locations. To give you a roadmap of the

Chapter 13 - Building a Better Window (Introducing Windows Forms) functionality in System.IO, Table 16-1 outlines the core (nonabstract) classes.

ChaptIn therframework6 - Interfacesof .NET,and Collectionsthe System.IO namespace is the region of the base class libraries devoted to

Chapterfile-based7 -(andCallbackmemoryInterf-based)ces, Delegates,input andandoutputEventsservices. Like any namespace, System.IO defines a set

Chapterof classes,8 -interfaces,Advan d C#enumerations,Type Constructionstructures,Techniquesand delegates, most all of which are contained in

PartmscorlibThree.dll- Programmi. In additiongtowiththe .typesNET Assemblicontaineds within mscorlib.dll, the System.dll assembly defines Chapteradditional9 -membersUnderstandingof the.SystemNET Assemblies.IO namespace (given that all VS .NET projects automatically set a

reference to both you should be ready to go).

Chapter 10 - Processeassemblies,AppDomains, Contexts, and Threads

Chapter 11 - Type Reflection, Late Binding, and Attribute-Based Programming

Chapter 16: The System.IO Namespace
C# and the .NET Platform, Second Edition
by Andrew Troelsen	ISBN:1590590554

When you are creating full-blown desktop applications, the ability to save information between user

This comprehensive text starts with a brief overview of the

sessions is imperative. This chapter examines a number of IO-related topics as seen through the eyes of

C# language and then quickly moves to key technical and

the .NET Framework. The first order of business is to explore the core types defined in the System.IO architectural issues for .NET developers.

namespace and come to understand how to programmatically modify a machine's directory and file structure. Once you can do so, the next task is to explore various ways to read from and write to character-

based, binary-based, string-based, and memory-based data stores.

Table of Contents

C# and the .NET Platform, Second Edition

Finally, to showcase some of these concepts using a cohesive example, I conclude this chapter with a

Introduction

complete Windows Forms application, which allows the end user to manage a collection of Car types that

Part One - Introducing C# and the .NET Platform

can be persisted to (and recovered from) a file using various types of the System.IO namespace and .NET

Chapter 1 - The Philosophy of .NET

object serialization services (first seen in Chapter 12). As an interesting bonus, the application in question

Chapter 2 - Building C# Applications

also previews the use of the System.Windows.Forms.DataGrid widget (used extensively during the

PartexaminationTwo - TheofC#ADOProgramming.NET). Language

Chapter 3 - C# Language Fundamentals

Chapter 4 - Object-Oriented Programming with C#

Exploring the System.IO Namespace

Chapter 5 - Exceptions and Object Lifetime

FileSystemWatcher

Path

StreamWriter

StreamReader

StringWriter

StringReader

FileStream

This type allows you to monitor the external modification to a given external file.

Performs operations on System.String types that contain file or directory path information in a platform-neutral manner.

These types are used to store (and retrieve) textual information to (or from) a file. These types do not support random file access.

Like the StreamReader/StreamWriter types, these classes also work with textual information. However, the underlying storage is a string buffer rather than a physical file.

Allows for random file access (e.g., seeking capabilities) with data represented as a stream of bytes.

MemoryStreamC# and			theRandom.NET Platform,access to streamedSecond Editiondata, stored in memory, rather than a
			physical file.	ISBN:1590590554
	by Andrew Troelsen			ISBN:1590590554

	Apress	© 2003 (1200 pages)
BufferedStream			Provides temporary storage for a stream of bytes that may be committed
	This	comprehensive text starts with a brief overview of the
			to storage at a later time.
	C# language and then quickly moves to key technical and
	C# language and then quickly moves to key technical and
BinaryReader	architectural issues for .NET devel			pers.
BinaryReader			These types allow you to store and retrieve primitive data types (integers,
BinaryWriter			Booleans, strings, and whatnot) as a binary value.
BinaryWriter

Table of Contents

C# and the .NET Platform, Second Edition

In addition to these creatable types, System.IO defines a number of enumerations, as well as a set of

Introduction

abstract classes (Stream, TextReader, TextWriter, and so forth) that define a shared polymorphic interface

Part One - Introducing C# and the .NET Platform

to all descendents. You will read about many of these types in this chapter.

Chapter 1 - The Philosophy of .NET

Chapter 2 - Building C# Applications

Part Two - The C# Programming Language

Chapter 3 - C# Language Fundamentals

Chapter 4 - Object-Oriented Programming with C#

Chapter 5 - Exceptions and Object Lifetime

Chapter 6 - Interfaces and Collections

Chapter 7 - Callback Interfaces, Delegates, and Events

Chapter 8 - Advanced C# Type Construction Techniques

Part Three - Programming with .NET Assemblies

Chapter 9 - Understanding .NET Assemblies

Chapter 10 - Processes, AppDomains, Contexts, and Threads

Chapter 11 - Type Reflection, Late Binding, and Attribute-Based Programming

Part Four - Leveraging the .NET Libraries

Chapter 12 - Object Serialization and the .NET Remoting Layer

Chapter 13 - Building a Better Window (Introducing Windows Forms)

Chapter 14 - A Better Painting Framework (GDI+)

Chapter 15 - Programming with Windows Forms Controls

Chapter 16 - The System.IO Namespace

Chapter 17 - Data Access with ADO.NET

Part Five - Web Applications and XML Web Services

Chapter 18 - ASP.NET Web Pages and Web Controls

Chapter 19 - ASP.NET Web Applications

Chapter 20 - XML Web Services

Index

List of Figures

List of Tables

The Directory(Info)C# and the .NETandPlatform,File(Info)SecondTypesEdition

by Andrew Troelsen

ISBN:1590590554

System.IO provides four types that allow you to manipulate individual files, as well as interact with a

machine's directory structure. The first two types, Directory and File, expose creation, deletion, copying,

This comprehensive text starts with a brief overview of the

and moving operationsC# languageusing variousand thenstaticquicklymembersoves .toThek ycloselytechnicalrelatedand FileInfo and DirectoryInfo types expose similar functionalityarchitecturalasissuesinstancefor -.levelNET developersmethods (and. therefore must be "new-ed"). In Figure 16-1, notice that the Directory and File types directly extend System.Object, while DirectoryInfo and FileInfo derive from the abstract FileSystemInfo type. Generally speaking, FileInfo and DirectoryInfo are better

Table of Contents

choices for recursive operations, as the Directory and File class members tend to return strings rather than

C# and the .NET Platform, Second Edition

file objects.

Introduction

Part One - Introducing C# and the .NET Platform

Chapter

Part

Chapter
Chapter
Chapter
Chapter
Chapter	Events
Chapter	Techniques
Part
Chapter
Chapter	Threads
Chapter	Attribute-Based Programming
Part
Chapter	Remoting Layer
Chapter	Windows Forms)
Chapter
Chapter	Controls
Chapter

Chapter 17 - Data Access with ADO.NET

Figure 16-1: The Fileand Directory-centric types

Part Five - Web Applications and XML Web Services

Chapter 18 - ASP.NET Web Pages and Web Controls

ChaptTherAbstract19 - ASP.NET FileSystemInfoWeb Applica ions Base Class

Chapter 20 - XML Web Services

IndexThe DirectoryInfo and FileInfo types receive many behaviors from the abstract FileSystemInfo type. By and Listlarge,of Figuresthe members of the FileSystemInfo class can be used to discover general characteristics (such as

time of creation, various attributes, and so forth) about a given file or directory. Table 16-2 lists some core

List of Tables properties of interest.

Table 16-2: FileSystemInfo Properties

Chapter 17 - Data Access with ADO.NET

Chapter 16 - The System.IO Namespace


	FileSystemInfoC# and the		.MeaningNET Platform,in LifeSecond Edition
	Property	by Andrew	Troelsen	ISBN:1590590554

	Attributes	Apress © 2003 (1200 pages)
	Attributes		Gets or sets the attributes associated to the current file that are
		This comprehensive text starts with a brief overview of the
			represented by the FileAttributes enumeration.
		C# language	and then quickly moves to key technical and
	CreationTime	architectural	issues for .NET developers.
	CreationTime		Gets or sets the time of creation for the current file or directory.

	Exists		Can be used to determine if a given file or directory exists.

Table of Contents			Used to retrieve a file's extension.
	Extension		Used to retrieve a file's extension.
C# and the .NET Platform, Second Edition
	FullName		Gets the full path of the directory or file.
	Introduction

Part One - Introducing C# and			the .NET Platform
	LastAccessTime		Gets or sets the time the current file or directory was last accessed.
	Chapter 1 - The Philosophy of .NET

ChapterLastWriteTime2 - Building C# ApplicationsGets or sets the time when the current file or directory was last written

Part Two - The C# ProgrammingtoLanguage.

	Chapter 3 - C# Language		Fundamentals
	Name		Returns the name of a given file; is a read-only property. For
	Chapter 4 - Object-Oriented		Programming with C#
	Chapter 5	- Exceptions and	directories, gets the name of the last directory in the hierarchy if
	Chapter 5	- Exceptions and	Object Lifetime
			possible; otherwise, retrieves the fully qualified name.
	Chapter 6	- Interfaces and	Collections
Chapter 7		- Callback Interfaces, Delegates, and Events

ChapterThe FileSystemInfo8 - Adva cedtypeC#alsoTypedefinesCo structionthe Delete()Techniquesmethod. This is implemented by derived types to delete

PartgivenThreefile- Progor directoryammingfromwiththe.NEThardAssembliesdrive. As well, Refresh() can (and should) be called prior to obtaining

Chapterattribute9 information- Understandingto ensure.NETthatAssembliesthe statistics regarding the current file (or directory) are not outdated.

Chapter 10 - Processes, AppDomains, Contexts, and Threads

Note Always get in the habit of calling Refresh() before reading data from types derived from

Chapter 11 - Type Reflection, Late Binding, and Attribute-Based Programming

FileSystemInfo, as the chances are quite good that the contents of the item will be altered after

Part Four - Leveraging the .NET Libraries

the initial construction.

Chapter 12 - Object Serialization and the .NET Remoting Layer

Chapter 13 - Building a Better Window (Introducing Windows Forms)

Working with the DirectoryInfo Type

Chapter 14 - A Better Painting Framework (GDI+)

Chapter 15 - Programming with Windows Forms Controls

The first creatable type you must understand is the DirectoryInfo class. This class contains a set of members used for creating, moving, deleting, and enumerating over directories and subdirectories. In

addition to the functionality provided by its FileSystemInfo base class, DirectoryInfo offers the members in

Part Five - Web Applications and XML Web Services

Table 16-3.

Chapter 18 - ASP.NET Web Pages and Web Controls

Chapter 19 - ASP.NET Web Applications

Table 16-3: Key Members of the DirectoryInfo Type

Chapter 20 - XML Web Services

IndexDirectoryInfo		Meaning in Life
ListMembersof Figures

List of Tables		Create a directory (or subdirectories) given a path name.
	Create()	Create a directory (or subdirectories) given a path name.
	CreateSubdirectory()

	Delete()	Deletes a directory and all its contents.

	GetDirectories()	Returns an array of strings that represent all subdirectories in the
		current directory.

	GetFiles()	Gets the files in the specified directory (as an array of FileInfo
		types).

	Parent	This property retrieves the parent directory of the specified path.

	MoveTo()	Moves a directory and its contents to a new path.

You begin working with the DirectoryInfo type by specifying a particular directory path (e.g., "C:\," "D:\WinNT," "\CompanyServer\Utils," "A:\," or what have you) as a constructor parameter. If you want access to the application directory (i.e., the directory of the executing application), use the "." notation.

Chapter 1 - The Philosophy of .NET

Part One - Introducing C# and the .NET Platform

Here are some examples:

C# and the .NET Platform, Second Edition

by Andrew Troelsen

ISBN:1590590554

// Create a new directory bound to the current directory.

DirectoryInfo dir1 = new DirectoryInfo(".");

This comprehensive text starts with a brief overview of the

// Create a new directory bound to C:\Foo\Bar, note the use of the symbol @.

C# language and then quickly moves to key technical and

DirectoryInfo dir2 = new DirectoryInfo(@"C:\Foo\Bar"); architectural issues for .NET developers.

Table of Contents

If you attempt to map to a nonexistent directory, you are thrown a System.IO.DirectoryNotFoundException.

C# and the .NET Platform, Second Edition

Assuming that an exception has not been thrown, you can investigate the underlying directory contents

Introduction

using any of the properties inherited from FileSystemInfo. To illustrate, the following class creates a new DirectoryInfo type mapped to "C:\WinNT" (adjust your letter drive and path if need be) and dumps out a number of interesting statistics (see Figure 16-2 for output):

Chapter	2	- Building C# Applications
Part Two - The C# Programming Language
Chapterclass3MyDirectory- C# Language Fundamentals
Chapter{	4	- Object-Oriented Programming with C#	args)
Chapterpublic5 - ExceptionsstaticandvoidObjectMain(String[]Lifetime
{	6	- Interfaces and Collections
Chapter
Chapter	7	DirectoryInfo dir = new DirectoryInfo(@"C:\WinNT");
		- Callback Interfaces, Delegates, and Events
Chapter	8	// Dump directory information.
		- Advanced C# Type Construction Techniques
		Console.WriteLine("*** Directory Info ***");
Part Three - Programming with .NET Assemblies
		Console.WriteLine("FullName: {0} ", dir.FullName);
Chapter	9	- Understanding .NET Assemblies
		Console.WriteLine("Name: {0} ", dir.Name);
Chapter	10	- Processes, AppDomains, Contexts, and Threads
		Console.WriteLine("Parent: {0} ", dir.Parent);
Chapter	11	- Type Reflection, Late Binding, and Attribute-Based Programming
		Console.WriteLine("Creation: {0} ", dir.CreationTime);
Part Four - Leveraging the .NET Libraries
		Console.WriteLine("Attributes: {0} ", dir.Attributes.ToString());
Chapter	12	- Object Serialization and the .NET Remoting Layer
		Console.WriteLine("Root: {0} ", dir.Root);
Chapter	13	- Building a Better Window Introducing Windows Forms)
Chapter}14		Console.WriteLine("**************************\n");
		- A Better Painting Framework (GDI+)
Chapter}	15	- Programming with Windows Forms Controls
Chapter	16	- The System.IO Namespace
Chapter	17	- Data Access with ADO.NET
Part
Chapter
Chapter
Chapter

Index

List of

Figure 16-2: %windir% directory information

The FileAttributes Enumeration

As shown in the previous code sample, the Attributes property obtains various traits for the current directory or file, all of which are represented by the FileAttributes enumeration. Table 16-4 describes some core values.

Table 16-4: Select FileAttributes Values


	FileAttributesC# and the .NET		Platform,MeaningSecondin LifeEdition
	EnumerationbyValueAndrew Troelsen			ISBN:1590590554

	Archive	Apress © 2003 (1200	pages)
	Archive	This comprehensive		Represents the archive status of the file or directory.
		This comprehensive	text starts with a brief overview of the
				Applications use this attribute to mark files for backup or
		C# language and then quickly moves to key technical and
		architectural issues	forremoval..NET developers.

	Compressed			The file or directory is compressed.

Table of Contents				The item is a directory (rather than a file).
	Directory			The item is a directory (rather than a file).

C# and the .NET Platform, Second Edition
	Encrypted			The file or directory is encrypted.
	Introduction


Part One - Introducing C# and the .NET Platform
	Hidden			The file or directory is hidden and thus is not included in an
Chapter 1		- The Philosophy of .NET		ordinary directory listing.

	Chapter 2 - Building C# Applications			The file or directory is normal and has no other attributes set.
	Normal
Part Two - The C# Programming Language
	Chapter 3 - C# Language Fundamentals			This attribute is valid only if used alone.


	ChapterOffline4 - Object-Oriented ProgrammingThe filewithorC#directory is offline. The data of the file is not
	Chapter 5 - Exceptions and Object Lifetimeimmediately available.

	Chapter 6 - Interfaces and Collections			The file or directory is read only.
	ReadOnly			The file or directory is read only.
	Chapter 7 - Callback Interfaces, Delegates, and Events
	Chapter 7 - Callback Interfaces, Delegates, and Events
	ChapterSystem8	- Advanced C# Type ConstructionThe fileTechniquesis a system file. The file is part of the operating system
Part Three - Programming with .NET			Assembliesor is used exclusively by the operating system.

Chapter 9 - Understanding .NET Assemblies

Chapter 10 - Processes, AppDomains, Contexts, and Threads

Chapter 11 - Type Reflection, Late Binding, and Attribute-Based Programming

Part Four - Leveraging the .NET Libraries

Chapter 12 - Object Serialization and the .NET Remoting Layer

Chapter 13 - Building a Better Window (Introducing Windows Forms)

Chapter 14 - A Better Painting Framework (GDI+)

Chapter 15 - Programming with Windows Forms Controls

Chapter 16 - The System.IO Namespace

Chapter 17 - Data Access with ADO.NET

Part Five - Web Applications and XML Web Services

Chapter 18 - ASP.NET Web Pages and Web Controls

Chapter 19 - ASP.NET Web Applications

Chapter 20 - XML Web Services

Index

List of Figures

List of Tables

EnumeratingC# andFilesthe with.NET Platform,the DirectoryInfoS cond Edition Type

by Andrew Troelsen

ISBN:1590590554

You can extend the current MyDirectory class to use some methods of the DirectoryInfo type. First, use the

GetFiles() method to read all *.bmp files located under the "C:\WinNT" directory. This method returns an

This comprehensive text starts with a brief overview of the

array of FileInfo typesC# languagethat youandcantheniteratequicklyovermovesusing theo keyforeachtechniconstructal and and thus use recursively if needed (full detailsarchitecturalof the FileInfoissuestypefor are.NETexploreddeveloperslater. in this chapter):

class MyDirectory

Table of Contents

{

C# and the .NET Platform, Second Edition

public static void Main(String[] args)

Introduction

{

Part One - Introducing C# and the .NET Platform

DirectoryInfo dir = new DirectoryInfo(@"C:\WinNT");

Chapter 1 - The Philosophy of .NET

...

Chapter 2 - Building C# Applications

// Get all files with a *.bmp extension.

Part Two - The C# Programming Language GetFiles

FileInfo[] bitmapFiles = dir. ("*.bmp");

Chapter 3 - C# Language Fundamentals

	// How many were found?
Chapter 4 - Object-Oriented Prog amming with C#
Chapter 5	- Exceptions and Object Lifetime
	Console.WriteLine("Found {0} *.bmp files\n", bitmapFiles.Length);
Chapter 6	- Interfaces// NowandprintCollectionsout info for each file.
Chapter 7	- CallbackforeachInterfaces,(FileInfoDelegates,f ina dbitmapFiles)Events
Chapter 8	- Advanced{	C# Type Construction Techniques

Console.WriteLine("***************************\n");

Part Three - Programming with .NET Assemblies

Console.WriteLine("File name: {0} ", f.Name);

Chapter 9 - Understanding .NET Assemblies

Console.WriteLine("File size: {0} ", f.Length);

Chapter 10 - Processes, AppDomains, Contexts, and Threads

Console.WriteLine("Creation: {0} ", f.CreationTime);

Chapter 11 - Type Reflection, Late Binding, and Attribute-Based Programming

Console.WriteLine("Attributes: {0} ", f.Attributes.ToString());

Part Four - Leveraging the .NET Libraries

Console.WriteLine("***************************\n");

Chapter 12 - Object Serialization and the .NET Remoting Layer

}

Chapter 13 - Building a Better Window (Introducing Windows Forms)

}

Chapter 14 - A Better Painting Framework (GDI+)

}

Chapter 15 - Programming with Windows Forms Controls Chapter 16 - The System.IO Namespace

ChaptOnceryou17 -runDatatheAccessapplication,with ADOyou.NETsee a listing something like that shown in Figure 16-3. (Your bitmaps may

Partvary!)Five - Web Applications and XML Web Services

Chapter 18 - ASP.NET Web Pages and Web Controls

Chapter 19 - ASP.NET Web Applications

Chapter

Index

List of

Figure 16-3: Bitmap file information

C# and the .NET Platform, Second Edition

by Andrew Troelsen

ISBN:1590590554

This comprehensive text starts with a brief overview of the C# language and then quickly moves to key technical and architectural issues for .NET developers.

Table of Contents

C# and the .NET Platform, Second Edition

Introduction

Part One - Introducing C# and the .NET Platform

Chapter 1 - The Philosophy of .NET

Chapter 2 - Building C# Applications

Part Two - The C# Programming Language

Chapter 3 - C# Language Fundamentals

Chapter 4 - Object-Oriented Programming with C#

Chapter 5 - Exceptions and Object Lifetime

Chapter 6 - Interfaces and Collections

Chapter 7 - Callback Interfaces, Delegates, and Events

Chapter 8 - Advanced C# Type Construction Techniques

Part Three - Programming with .NET Assemblies

Chapter 9 - Understanding .NET Assemblies

Chapter 10 - Processes, AppDomains, Contexts, and Threads

Chapter 11 - Type Reflection, Late Binding, and Attribute-Based Programming

Part Four - Leveraging the .NET Libraries

Chapter 12 - Object Serialization and the .NET Remoting Layer

Chapter 13 - Building a Better Window (Introducing Windows Forms)

Chapter 14 - A Better Painting Framework (GDI+)

Chapter 15 - Programming with Windows Forms Controls

Chapter 16 - The System.IO Namespace

Chapter 17 - Data Access with ADO.NET

Part Five - Web Applications and XML Web Services

Chapter 18 - ASP.NET Web Pages and Web Controls

Chapter 19 - ASP.NET Web Applications

Chapter 20 - XML Web Services

Index

List of Figures

List of Tables

Creating SubdirectoriesC# and the .NET Platform,with Secondthe DirectoryInfoEdition Type

by Andrew Troelsen

ISBN:1590590554

You can programmatically extend a directory structure using the DirectoryInfo.CreateSubdirectory() method.

This method can create a single subdirectory, as well as multiple nested subdirectories. To illustrate, here is

This comprehensive text starts with a brief overview of the

a block of code thatC# extendslanguagetheanddirectorythen quicklystructuremovesofto"C:\WinNT"key technicalwithandsome custom subdirectories:

architectural issues for .NET developers.

class MyDirectory

{

Table of Contents

public static void Main(String[] args)

C# and the .NET Platform, Second Edition

{

Introduction

DirectoryInfo dir = new DirectoryInfo(@"C:\WinNT");

Part One - Introducing C# and the .NET Platform

...

Chapter 1 - The Philosophy of .NET

try

Chapter 2 - Building C# Applications

{

Part Two - The C# Programming Language

// Create \MyFoo off root.

Chapter 3 - C# Language Fundamentals

dir.CreateSubdirectory("MyFoo");

Chapter 4 - Object-Oriented Programming with C#

// Create \MyBar\MyQaaz off root.

Chapter 5 - Exceptionsdirand.CreateSubdirectory(@"MyBar\MyQaaz");Object Lifetime

Chapter 6 - Interfaces} and Collections

Chapter 7 - Callbackcatch(IOExceptionInterfaces, Delegates,e) and{ ConsoleEvents .WriteLine(e.Message);}

}

Chapter 8 - Advanced C# Type Construction Techniques

}

Part Three - Programming with .NET Assemblies

Chapter 9 - Understanding .NET Assemblies

Chapter 10 - Processes, AppDomains, Contexts, and Threads

If you examine your %windir% directory using Windows Explorer, you will see the new subdirectories are

Chapter 11 - Type Reflection, Late Binding, and Attribute-Based Programming present and accounted for (Figure 16-4).

Part Four - Leveraging the .NET Libraries

Chapter 12 - Object Serialization and the .NET Remoting Layer

Chapter Forms)

Chapter

Part

Chapter

Index

List of

Figure 16-4: Creating subdirectories

Although you are not required to capture the return value of the CreateSubdirectory() method, be aware that a DirectoryInfo type representing the newly created item is passed back on successful execution:

// CreateSubdirectory() returns a DirectoryInfo item representing the new item.

try

{

DirectoryInfo d = dir.CreateSubdirectory("MyFoo");

Console.WriteLine("Created: {0} ", d.FullName);

d = dir. CreateSubdirectory(@"MyBar\MyQaaz");

Console.WriteLine("Created: {0} ", d.FullName);

}

C# and the .NET Platform, Second Edition catch(IOException e) { Console.WriteLine(e.Message); }

by Andrew Troelsen

ISBN:1590590554

This comprehensive text starts with a brief overview of the C# language and then quickly moves to key technical and architectural issues for .NET developers.

Table of Contents

C# and the .NET Platform, Second Edition

Introduction

Part One - Introducing C# and the .NET Platform

Chapter 1 - The Philosophy of .NET

Chapter 2 - Building C# Applications

Part Two - The C# Programming Language

Chapter 3 - C# Language Fundamentals

Chapter 4 - Object-Oriented Programming with C#

Chapter 5 - Exceptions and Object Lifetime

Chapter 6 - Interfaces and Collections

Chapter 7 - Callback Interfaces, Delegates, and Events

Chapter 8 - Advanced C# Type Construction Techniques

Part Three - Programming with .NET Assemblies

Chapter 9 - Understanding .NET Assemblies

Chapter 10 - Processes, AppDomains, Contexts, and Threads

Chapter 11 - Type Reflection, Late Binding, and Attribute-Based Programming

Part Four - Leveraging the .NET Libraries

Chapter 12 - Object Serialization and the .NET Remoting Layer

Chapter 13 - Building a Better Window (Introducing Windows Forms)

Chapter 14 - A Better Painting Framework (GDI+)

Chapter 15 - Programming with Windows Forms Controls

Chapter 16 - The System.IO Namespace

Chapter 17 - Data Access with ADO.NET

Part Five - Web Applications and XML Web Services

Chapter 18 - ASP.NET Web Pages and Web Controls

Chapter 19 - ASP.NET Web Applications

Chapter 20 - XML Web Services

Index

List of Figures

List of Tables

<<< < Предыдущая 36 37 38 39 40 41 42 43 44 45 46 47 4849 / 6049 50 51 52 53 54 55 56 57 58 59 60 > Следующая >>>

Соседние файлы в предмете Программирование

#
24.05.201415.33 Mб26ASP .NET 2.0 Beta Preview - B. Evjen.pdf
#
24.05.20143.32 Mб31ASP .NET Database Programming Weekend Crash Course - J. Butler, T. Caudill.pdf
#
24.05.20145.21 Mб17ASP Configuration - Gary Palmatier.pdf
#
24.05.201415.04 Mб201Assembler. Учебник для вузов. 2-е изд. - Юров В.И..pdf
#
24.05.201416.16 Mб156ASSEMBLER. Учебный курс. - Пирогов В.Ю..pdf
#
24.05.201422.43 Mб67C# and the NET Platform, Second Edition - Andrew Troelsen.pdf
#
24.05.20144.21 Mб64C# Bible - Jeff Ferguson, Brian Patterson, Jason Beres.pdf
#
24.05.20142.89 Mб87Cisco Switching Black Book - Sean Odom, Hanson Nottingham.pdf
#
24.05.2014995 б4Delphi 5 среда разработки.html
#
24.05.201415.94 Mб9Delphi 5. Developer’s Guide.pdf
#
24.05.201412.18 Mб25Delphi 7 Для профессионалов - Кэнту М..djvu