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954 CHAPTER 25 ■ UNDERSTANDING XML WEB SERVICES

official UDDI website can be found at http://uddi.microsoft.com. The official website of UDDI (http://www.uddi.org) provides numerous white papers and SDKs that allow you to build internal UDDI servers.

Interacting with UDDI via Visual Studio 2005

Recall that the Add Web Reference dialog box allows you not only to obtain a list of all XML web services located on your current development machine (as well as a well-known URL) but also to submit queries to UDDI servers. Basically, you have the following options:

•Browse for a UDDI server on your company intranet.

•Browse the Microsoft-sponsored UDDI production server.

•Browse the Microsoft-sponsored UDDI test server.

Assume that you are building an application that needs to discover the current weather forecast on a per–zip code basis. Your first step would be to query a UDDI catalog with the following question:

• “Do you know of any web services that pertain to weather data?”

If it is the case that the UDDI server has a list of weather-aware web services, you are returned a list of all registered URLs that export the functionality of your query. Referencing this list, you are able to pick the specific web service you wish to communicate with and eventually obtain the WSDL document that describes the functionality of the weather-centric functionality.

As a quick example, create a brand-new console application project and activate the Add Web Reference dialog box. Next, select the Test Microsoft UDDI Directory link, which will bring you to the Microsoft UDDI test server. At this point, enter weather as a search criterion. Once the UDDI catalog has been queried, you will receive a list of all relevant XML web services. When you find an XML web service you are interested in programming against, add a reference to your current project. As you would expect, the raw WSDL will be parsed by the tool to provide you with a C# proxy.

■Note Understand that the UDDI test center is just that: a test center. Don’t be too surprised if you find a number of broken links. When you query production-level UDDI servers, URLs tend to be much more reliable, given that companies typically need to pay some sort of fee to be listed.

Summary

This chapter exposed you to the core building blocks of .NET web services. The chapter began by examining the core namespaces (and core types in these namespaces) used during web service development. As you learned, web services developed using the .NET platform require little more than applying the [WebMethod] attribute to each member you wish to expose from the XML web service type. Optionally, your types may derive from System.Web.Services.WebService to obtain access to the Application and Session properties (among other things). This chapter also examined three key related technologies: a lookup mechanism (UDDI), a description language (WSDL), and a wire protocol (GET, POST, or SOAP).

Once you have created any number of [WebMethod]-enabled members, you can interact with a web service through an intervening proxy. The wsdl.exe utility generates such a proxy, which can be used by the client like any other C# type. As an alternative to the wsdl.exe command-line tool, Visual Studio 2005 offers similar functionality via the Add Web Reference dialog box.

Index

■Special Characters

#elif, preprocessor directive, 317–18 #else, preprocessor directive, 317–18 #endif, preprocessor directive, 317–18 #endregion, preprocessor directive, 317 #if, preprocessor directive, 317–18 #region, preprocessor directive, 317 #undef, preprocessor directive, 317–19 & operator, pointer types, 312–13

* operator, pointer types, 312–13 ?? operator, 133

+= operator, 610

<%@Page%> directive, ASP.NET, 846 <%Import%> directive, ASP.NET, 846–47 ? suffix, nullable types, 131

■A

A# programming language, 8 Abort( ) method, Thread type, 460

abstract base classes contrasted with interfaces, 224

abstract classes, 16, 164–65, 166 abstract members (interface), 221 abstract methods, 166–69

AcceptChanges( ), RejectChanges( ) methods, ADO.NET, 795–98

AcceptsReturn property, Textbox, 705 access modifiers, 76–78

Add Reference dialog box, 356, 359–60 AddCacheDependency( ) method, ASP.NET

HTTP Response, 860 adding controls, ASP.NET, 869–70

AddRange( ) method, ControlCollection, 702 ADO.NET

additional namespaces, 763–64 vs. ADO classic, 759–60

application configuration files, 769–70 asynchronous data access, 792–93 autogenerated data components, 824–25 autogenerating SQL commands, 816–17 autoincrementing, 797

binding DataTables to user interfaces, 804, 806 Command object, 781–82

connected layer, 778

connected vs. disconnected layer, 760 connecting to database, Visual Studio 2005,

776

connection objects, 779–80 ConnectionStringBuilder object, 780–81 connectionStrings element, application

configuration, 774–75

data adapter objects, 811–12 data providers overview, 759–62 data wizards, 822–25 DataColumn objects, 796, 798 DataRelation objects, 817–20 DataRow objects, 798–99, 801

DataRow.RowState property, 799–800 DataSet class, 794–96

datasets in XML web services, 950 DataTable objects, 800 DataTableReader objects, 802 DataView objects, 810 DbDataReader object, 782–83 definition, 759–60

deleting records, 787 deleting rows, 806–7 disconnected layer, 793 example database, 775

example, data provider factory, 772–74 filling DataSet, 812

filters, 807–8

Firebird Interbase data provider, 763

IBM DB2 Universal Database data providers, 763

IDbCommand interface, 766 IDbConnection interface, 765 IDbDataAdapter, IDataAdapter interface, 767 IDbDataParameter, IDataParameter

interface, 766

IDbDataReader, IDataReader interface, 767–68

IDbTransaction interface, 765 inserting records, 786 mapping DBMS names, 813

Microsoft data providers, 762–63 modifying tables, Command object, 784–86 multiple result sets, DbDataReader object,

784

multitabled DataSet objects, 817–20 MySQL data providers, 763

navigating between related tables, 820–21 overview, 759

parameterized command objects, 788 persisting datasets as XML, 803 PostgreSQL providers, 763

provider factory model, 770–72 sort order, 807–8

specifying DbParameter parameters, 788–90 stored procedures using DbCommand,

790–91

strongly typed datasets, 823–24

955

956 ■I N D E X

System.Data, 764

third-party data providers, 763 updating records, 787 updating rows, 809

updating using data adapter objects, 813–15 using interfaces, 768–69

view objects, 810

AdRotator example, ASP.NET, 874

AllKeys property, ASP.NET HttpApplicationState members, 898

AllowDBNull property, ADO.NET DataColumn object, 796

AnchorStyles enumeration values, 755 animation in controls, 743 anonymous methods

description, 282 example, 283–84

App_Browsers, ASP.NET 2.0 subdirectories, 851 App_Code, ASP.NET 2.0 subdirectories, 851, 853 App_Data, ASP.NET 2.0 subdirectories, 851 App_GlobalResources, ASP.NET 2.0

subdirectories, 851 App_LocalResources, ASP.NET 2.0 subdirectories, 851

App_Themes, ASP.NET 2.0 subdirectories, 851 App_WebReferences, ASP.NET 2.0

subdirectories, 851 AppDomains

advantages, 435

creation example code, 437 loading example code, 438

manipulation example code, 436–37 overview, 425

relationship to processes, 435 thread relationship, 449 unloading example code, 439–40

AppendText( ) method, FileInfo class, System.IO, 526, 528–29

Application, ASP.NET HttpApplication members, 897

application cache, ASP.NET, 901 Application class

ApplicationExit event, 609 CompanyName property, 609 DoEvents( ) method, 609 EnableVisualStyles( ) method, 609 ExecutablePath property, 609 Exit( ) method, 609

Idle event, 609 ProductName property, 609 ProductVersion property, 609 StartupPath property, 609 ThreadExit event, 609

Application class, System.Windows.Forms, 606 application configuration files, ADO.NET,

769–70 application development

cordbg.exe debugger, 33, 40–41 csc.exe compiler, 33–36

.NET 2.0 Framework SDK, general guide, 33

notepad.exe development editor, 33 overview, 33

SharpDevelop, 33

TextPad development editor, 41 Visual C# 2005 Express, 33

application domain, garbage collection, 188 application level state data, ASP.NET, 898–99 Application, Page Type properties, 856 Application property, WebService base class,

929

application root categories, 182–83 application shutdown, ASP.NET, 900 Application_End( ), Global.asax event handlers

in ASP.NET, 896

Application_Error( ), Global.asax event handlers in ASP.NET, 896

Application_Start( ), Global.asax event handlers in ASP.NET, 896

ApplicationExit event, Application class, 609 ApplicationId, RemotingConfiguration, 580 ApplicationName, RemotingConfiguration, 580 applications vs. sessions, ASP.NET, 897 appSetting element, Web.config, ASP.NET, 912 array types, 127–28

ArrayList System.Collections class type, 250–51 arrays

jagged, 129–30 multidimensional, 128

as parameters and return values, 128 using interface types in, 228

in XML web services, 949 as keyword

determining interface support, 225 determining type, 172

ASP.NET

<%@Page%> directive, 846 <%Import%> directive, 846–47 adding and removing controls, 869–70 AdRotator example, 874 AutoEventWireUp attribute, 862–63 AutoPostBack property, 866

browser statisics in HTTP Request processing, 858

categories of web controls, 871–72 classic ASP, 838, 840

client-side scripting, 836

client-side scripting example, 836–37 code-behind, description, 842 code-behind page model, 847–49 compilation cycle

multifile pages, 854–55 single-file pages, 853–54 debugging and tracing, 849–50

default.aspx content page example, 875–76 detailed content page example, 881–83 Document Object Model (DOM), 836 Emitting HTML, 860

enumerating controls with Panel control, 867–68

Error event, 863–64

■I N D E X 957

form control declarations, 847	assemblies
GET and POST, 837–38	Add Reference dialog box, 356, 359–60
HTML	app.config file, 368
document structure, 833	binary code reuse, 347
form development, 833	CIL code, 351, 358
overview, 832	client application example, 359–60
web controls, 871	CLR file header, 350–51
HTTP	code base config file element, 385, 387
overview, 829–30	code library, 347
Request members, 857	compared with legacy executables, 347
Request processing, 857–59	consuming shared assemblies, 376–77
Response members, 860	cross-language inheritance, 362
Response processing, 859–61	definition, 347
IIS virtual directories, 831	delayed digital signing, 375–76
incoming form data, 858–59	dependentAssembly config file element, 381–82
inheritance chain, page type, 855–56	download cache, 352
in-place editing example, 879–80	dynamic redirection to a specific version,
Internet Information Server (IIS),	381–82
description, 830	embedded resources, 352
inventory content page example, 877–78	example of version updating, 379–82
IsPostBack property in HTTP Request	explicit load request, 366, 368
processing, 859	flow of CLR external reference resolution, 388
life cycle of web page, 861–63, 865	global assembly cache (GAC), 25, 348
master pages example, 872–73	ildasm exploration of manifest, 357
menu control example, 873	implicit load request, 366, 368
overview, 829	internal format, 349
page type inheritance chain, 855–56	language integration, 360, 362, 364–65
redirecting users, 861	manifest, 348, 351, 357
request/response cycle, HTTP, 829	manifest description, 11
round-trips (postbacks), 836	metadata description, 10
runat attribute, 847	module-level manifest, 364
script block, 847	modules, 11, 352
server-side event handling, 865	multifile, 352, 362–65
simple web controls, 871	.NET Framework Configuration utility,
simple website example, 872–75, 877–83	369–70, 382
single file code model, 842–43	netmodule file extension, 352, 362–64
sorting and paging example, 878–79	overview, 10, 347
stateless, description, 830	private, 365–66, 368
submitting form data, 837–38	probing process, 366, 368
System.Web.UI.Control, 866–67, 869–70	publisher policy assemblies, 384–85
System.Web.UI.Page, 856	referencing external, 25
System.Web.UI.WebControls namespace,	and resource files, 693
865–66	satellite assemblies, 352
System.Web.UI.WebControls.WebControl,	self-describing, 348
870	shared assemblies, 371
user interface in HTML, 834–35	configuration, 378–79
using web controls, 865–66	and the GAC, 374
validating form data, 837	shared assembly manifest, 378
validation controls, 883, 885–88	single-file, 352
version 1.x benefits, 840	example, 354–56
version 2.0 benefits, 841	vs. multifile, 11
version 2.0 namespaces overview, 841	strong names, 348, 357, 371, 373–74
web application, description, 830	assigning using Visual Studio 2005, 374
web development server, 832	code example, 373
web page code model, 842–46	type metadata, 348, 351, 358
web server, description, 830	updating applications using shared
WebControl base class properties, 870–71	assemblies, 378–79
website directory structure, 851	version number, 348
ASP.NET 2.0 namespaces, 842	Visual Studio 2005 configuration, 368
ASP.NET 2.0 subdirectories, 851–53	Win32 file header, 349

958■I N D E X

Assembly class, System.Reflection, 396, 402–6 assembly directive, common intermediate

language (CIL), 488 assembly manifest, 15

assembly metadata, const values, 81 AssemblyBuilder, System.Reflection.Emit

namespace, 505 AssemblyCompanyAttribute attribute, 415 AssemblyCopyrightAttribute attribute, 415 AssemblyCultureAttribute attribute, 415 AssemblyDescriptionAttribute attribute, 415 AssemblyInfo.cs file, 415 AssemblyKeyFileAttribute attribute, 416 AssemblyLoad event, System.AppDomain, 436 AssemblyName class, System.Reflection

namespace, 396 assembly/namespace/type distinction, 22 AssemblyOperatingSystemAttribute attribute,

416

AssemblyProcessorAttribute attribute, 416 AssemblyProductAttribute attribute, 416 AssemblyRef, 394

AssemblyResolve event, System.AppDomain, 436

AssemblyTrademarkAttribute attribute, 416 AssemblyVersionAttribute attribute, 416 AsyncCallback delegate, multithreaded

applications, 456–57

asynchronous data access, ADO.NET, 792–93 asynchronous delegate call, 260–61 asynchronous I/O, 542–43

asynchronous multithreading using delegates, 260–61

AsyncResult class, multithreaded applications, 457–58

attribute-based programming assembly, module level attributes, 415 attribute key points, 412 AttributeUsage attribute, 414

C# attribute notation, 411 CLSCompliant attribute, 408–9 COM vs. .NET attributes, 408 constructor parameters, 411 custom attributes, 412 description, 408

DllImport attribute, 409 early binding, 416–17

example of custom attributes, 413 extensibility, 418–24

late binding, 417–18 multiple attributes, 410–11 NonSerialized attribute, 409 Obsolete attribute, 408–9, 411 overview, 391

restricting attributes, 414 Serializable attribute, 409 serializing example, 409–10

Visual Basic snap-in example, 420–21 WebMethod attribute, 409

Windows forms example, 421–22

attributes, assembly, module level, 415 Attributes property, FileSystemInfo class, 519,

521

AttributeUsage attribute, 414

authentication element, Web.config, ASP.NET, 912

authorization element, Web.config, ASP.NET, 912

AutoCheck property, Button, 711 AutoEventWireUp attribute, ASP.NET, 862–63 autogenerating SQL commands, ADO.NET,

816–17

AutoIncrementproperty, ADO.NET DataColumn object, 796

autoincrementing, ADO.NET, 797 AutoPostBack property, ASP.NET web controls,

866

■B

base keyword in class creation, 156–57 BaseDirectory( ), System.AppDomain, 436 BasePriority, ProcessThread type, 432 BaseStream property, BinaryReader class, 538 BaseStream property, BinaryWriter class, 538 basic string operations, 123–24 BeginCatchBlock( ) method,

System.Reflection.Emit.ILGenerator,

506 BeginExceptionBlock( ) method,

System.Reflection.Emit.ILGenerator,

506 BeginFinallyBlock( ) method,

System.Reflection.Emit.ILGenerator,

506

BeginInvoke( ) method, multithreaded applications, 453–58

BeginInvoke( ) method, SoapHttpClientProtocol class, 944

BeginLabel( ) method, System.Reflection.Emit.ILGenerator, 506

BeginLocal( ) method, System.Reflection.Emit.ILGenerator, 506

BeginScope( ) method, System.Reflection.Emit.ILGenerator, 506

BeginTransaction( ) method, DbConnection, ADO.NET, 779

Bin, ASP.NET 2.0 subdirectories, 851–52 binary code reuse, 347

binary opcodes, 479 BinaryFormatter

deserialization, 551 serialization, 548, 550–51

BinaryReader, BinaryWriter, System.IO, 538–39 BinaryReader, BinaryWriter types,

input/output, System.IO, 517 BinaryReader class, 538

BinaryWriter class, 538

binding DataTables to user interfaces, ADO.NET, 804, 806

binding element, WSDL document elements, 939

boxing and unboxing CIL code, 322

generics issues, 321–22 InvalidCastException, 322

.NET 1.1 solution, 323–24

.NET 2.0 solution, 104–6 BrowsableAttribute, System.ComponentModel,

746

Browser controls, 736–37

browser statisics in HTTP Request processing, ASP.NET, 858

BufferedStream type, input/output, System.IO, 517

bugs, description, 197 Button control

AutoCheck property, 711 CheckAlign property, 711 Checked property, 711 CheckState property, 711 FlatStyle property, 709, 711 Image property, 709 ImageAlign property, 709 TextAlign property, 709 ThreeState property, 711

by value parameter passing, 89–90

■C

C language deficiencies, 3 C# benefits and features, 7–8 C++

program structure compared with C#, 65 Cache, Page Type properties, ASP.NET, 856 callback interfaces

event interface, 256–57, 259 overview, 255

sink object, 256–57, 259 two-way conversation, 255

Cancel( ), DbCommand, ADO.NET, 782 CancelAsync( ) method,

SoapHttpClientProtocol class, 944 CanRead, CanSeek, CanWrite, Stream class,

System.IO, 532

CAO activation, remoting, 572–73 Caption property, ADO.NET DataColumn

object, 796

Cars example database, ADO.NET, 775 CaseSensitive property, ADO.NET DataSet class,

795

CaseSensitive property, ADO.NET DataTable object, 800

casting operations, 170–71 CategoryAttribute, System.ComponentModel,

746

CausesValidation, control class property, 730

■I N D E X 959

ChangeDatabase( ) method, DbConnection, ADO.NET, 779

channels, remoting, 568–69 CharacterCasing property, Textbox, 705 CheckAlign property, Button, 711 CheckBox AddRange( ) method,

ControlCollection type, 702 CheckBox control, 711, 713 checked compiler flag, 308 checked keyword, 307–9

Checked property, Button, 711 CheckedListBox control, 714–15 CheckState property, Button, 711 child class, description, 146

child controls, System.Windows.Forms, 606 child forms in MDI applications, 647 ChildRelations property, ADO.NET DataTable

object, 800

CIL compiler directives, 478

CIL language and programming, 477–504 CIL overview, 477–78

class

comparison with objects and references, 179 containment/delegation model, 146 definition, 69

instantiation, 72

member variable default values, 78 public interfaces, 144–45

types, 16

class directive, common intermediate language (CIL), 489–90

class library, definition, 347 classic ASP and ASP.NET, 838, 840 Clear( ) method

ADO.NET DataSet class, 795

ASP.NET HttpApplicationState members, 898 ASP.NET HTTP Response, 860 ControlCollection, 702

client and server definitions, 565 client-activated remoting, 590–91

client-side configuration files, remoting, 585–86 client-side representation of XML web services,

952–53

client-side scripting in ASP.NET, 836–37 ClientTarget, Page Type properties, ASP.NET,

856

Clone( ) method, ADO.NET DataSet class, 795 cloneable objects (ICloneable), 238–42 Close( ) method

BinaryReader class, 538 BinaryWriter class, 538 Stream class, System.IO, 532 TextWriter, System.IO, 534

CloseMainWindow( ), System.Diagnostics.Process, 429

CLSCompliant attribute, 408–9 COBOL .NET programming language, 8

code comment XML format characters, 177 code DOM provider, 513

code libraries and assemblies, 347

960 ■I N D E X

code-behind, description, ASP.NET, 842	mresources directive, 489
code-behind page model, ASP.NET, 847–49	vs. MSIL, 10
CodePage, ASP.NET <%@Page%> directive	namespace directive, 489
attribute, 846	new keyword, 181
collections	opcodes, 479, 495
ICollection interface, 248	overview, 11, 477
IDictionary interface, 248	peverify.exe tool, 487
IDictionaryEnumerator interface, 249	as programming language, 477
IList interface, 249	properties, 494–95
overview, 221	pushing and popping from the stack, 480
CollectionsUtil, System.Collections.Specialized,	round-trip engineering, 481–85
253	saving CIL code using ildasm.exe, 481–83
colon operator, 111	stack-based programming, 480
color values, GDI+, 663	structures, 491
ColorDialog class, GDI+, 664–65	subsystem directive, 489
ColumnMapping property, ADO.NET	token set of CIL, 478
DataColumn object, 796	type constructors, 494
ColumnName property, ADO.NET DataColumn	using ILIDE#, 486
object, 796	using SharpDevelop, 486
Combine( ) method,	variables, local, 498
System.MulticastDelegate/System	virtual execution stack, 480
Delegate, 263	Common Language Runtime (CLR)
ComboBox control, 716–17	file header in assemblies, 350–51
Command object, ADO.NET, 781–82	hosts
Command object, ADO.NET data providers, 761	CLR versions, 446
CommandTimeout, DbCommand, ADO.NET,	dotnetfx.exe, 444
782	multiple .NET Framework versions, 445
common intermediate language (CIL)	.NET assembly activation under Windows
advantages of learning, 477–78	XP, 444–45
assembly directive, 488	overview, 425
attributes, 479	requiredRuntime config specification, 446
benefits, 13	side-by-side execution, 445
binary opcodes, 479	specific CLR version specification, 446
C# vs. VB.NET, 11–12	mscoree.dll, 20
class directive, 489–90	mscorlib.dll, 21
code explained, 482–83	overview, 20
code labels, 483–84	Common Language Specification (CLS), 19–20
compiler flags, 485	Common Type System (CTS)
compiling CIL code, 485–86	adornments, 18
compiling to specific platforms, 14	class types, 16
complete example program, 500–504	delegate types, 17
current object parameter, 499	enumeration types, 17
defining current assembly, 488	interface types, 17
directives, 478	intrinsic types, 18
enums, 491	overview, 15
externally referenced assemblies, 488	structure types, 16
field directive, 493	type members, 18
ilasm.exe compiler, 477	CompanyName property, Application class,
interfaces, 490	609
iteration, 499	comparable objects (IComparable), 242–44
just-in-time (JIT) compiler, 14	CompareExchange( ) method, Interlocked type,
locals directive, 498	multithreaded applications, 472
mapping C# types to CIL types, 492–93	CompareValidator control, ASP.NET, 884, 887
mapping parameters to variables, 498	compilation cycle, ASP.NET 2.0
maxstack directive, 497	multifile pages, 854–55
method parameters, 495	overview, 853
methods, 494–95	single-file pages, 853–54
mnemonics, 479	compilation element, Web.config, ASP.NET, 913
modifying CIL code, 481–85	CompilerOptions, ASP.NET <%@Page%>
module directive, 488	directive attribute, 846

■I N D E X 961

compiling common intermediate language	DefaultValue attribute, 747
(CIL), 485–87	Designer.cs file, 702–3
Component Object Model (COM), 5	Dock property, 755–56
concurrency, multithreaded applications, 450,	dynamic positioning, 754
467–71	ErrorBlinkStyle properties, 730
conditional compile, 318–19	ErrorProviders, 729–31
configuration files, remoting, 584	events, 741
configuration inheritance, ASP.NET, 917–18	GroupBox, 711, 713
Configure( ) method, RemotingConfiguration,	image processing, 739–41
580	InitializeComponent( ) method, 703
connected layer, ADO.NET, 778	Label, 704–5
Connection, DbCommand, ADO.NET, 782	ListBox, 715–16
Connection object, ADO.NET data providers,	manually adding controls to forms, 700–701
761	MaskedTextBox, 707, 709
connection objects, ADO.NET, 779–80	mnemonic keys in Label, 704–5
ConnectionStringBuilder object, ADO.NET,	MonthCalendar, 719–21
780–81	node images in TreeViews, 734, 736
connectionStrings element, ADO.NET	overview, 699
application configuration, 774–75	Panel, 726–27
connectionStrings element, Web.config,	properties, 741–44
ASP.NET, 913	RadioButton, 711, 713
ConnectionTimeout( ) method, DbConnection,	tab order, 718
ADO.NET, 779	TabControl, 722–23
const keyword (constant data), 80	table and flow layout, 756–57
Constraints property, ADO.NET DataTable	TabStop, TabIndex properties, 718
object, 800	TextBox, 705–7
ConstructorBuilder, System.Reflection.Emit	ToolTip, 721–22
namespace, 505	TrackBar, 724–26
constructors, 70–71	TreeView, 731–36
containers for ToolStrips, Visual Studio 2005,	UpDown, 727, 729
643, 645	UserControl Test Container, 743
Context property, WebService base class, 929	using custom controls, 744–45
context-agile, 441	WebControl, 736–37
context-bound, 441–42	Controls property, System.Web.UI.Control in
Contraint, System.Data, ADO.NET, 764	ASP.NET, 867
contravariance, delegates, 276	cookies, ASP.NET, 909–10
control class properties, 730	coordinate systems, GDI+, 659–60
control state, state management in ASP.NET, 894	Copy( ) method, ADO.NET DataSet class, 795
ControlCollection, 702	CopyTo( ) method, FileInfo class, System.IO, 526
controls	cordbg.exe command-line debugger, 40–41
adding, using Visual Studio 2005, 702–3	Count, ControlCollection, 702
animation, 743	Count property, ASP.NET HttpApplicationState
ASP.NET, adding and removing, 869–70	members, 898
basic, 703–4	covariance, delegates, 275–76
Button, 709–10	Create( ) method
CheckBox, 711, 713	DirectoryInfo class, 519, 522–23
CheckedListBox, 714–15	FileInfo class, System.IO, 526
ComboBox, 716–17	CreateDomain( ), System.AppDomain, 435, 437
ControlCollection, 701–2	CreateInstance( ), System.AppDomain, 436
custom, 737–43	CreateObjRef( ), System.MarshalByRefObject,
appearance of, 746	572
design time attributes of, 746	CreateSubdirectory( ) method, DirectoryInfo
hosts for, 744–45	class, 519, 522–23
icon, 748–49	CreateText( ) method, FileInfo class, System.IO,
custom events, 741	526, 528–29
custom properties, 741–44	CreationTime property, FileSystemInfo class,
DateTimePicker, 721	519
default input button, 719	csc.exe compiler, 33
DefaultEvent attribute, 748	@ symbol (response files), 39
DefaultProperty attribute, 748	command-line flags, 36

962 ■I N D E X

compile parameters, 36 configuration, 34–35

/debug command-line flag, 41 default response file (csc.rsp), 40 a first C# application, 36

GAC utility, gacutil.exe, 35 mscorlib.dll, 37

multiple external assemblies, 39 multiple source files, 38–39 /noconfig command-line flag, 40 /nostdlib command-line flag, 37 /out command-line flag, 36 Path, setting, 34–35

reasons for using, 34

/reference command-line flag, 37 referencing external assemblies, using

keyword, 37 response files, 39

/target command-line flag, 36 wildcard character, 38

CurrentContext property, Thread type, 460 CurrentLeaseTime, ILease interface remoting,

593

CurrentPriority, ProcessThread type, 432 CurrentState, ILease interface remoting, 593 CurrentThread property, Thread type, 460–61 custom, 846–47

custom controls, 737–43 design time appearance, 746 hosts, 744–45

custom dialog boxes, 750–52 custom events, 741

custom exceptions, structured exception handling, 209–10

custom namespaces, 133–34 custom properties, 741–44 custom type conversion

CIL special names, 306

conversions among related class types, 301–2 explicit keyword, 302–4

implicit conversions, 301 implicit keyword, 302–6 numerical converstions, 301

custom types in XML web services, 948 custom view states, state management in

ASP.NET, 893–94 CustomAttributeBuilder, System.Reflection.

Emit namespace, 505 customErrors element, Web.config, ASP.NET,

913–15

CustomValidator control, ASP.NET, 884

■D

data caching, ASP.NET, 901, 903–5

Data property, System.Exception, 200, 206–7 data providers

abstracting using interfaces, 768–69 asynchronous, .NET 2.0, 792–93 command builder type, 816

core objects, 761

factory pattern, .NET 2.0, 770–74 overview, 759–61

DataAdapter object, ADO.NET data providers, 761

Database property, DbConnection, ADO.NET, 779

DataBind( ) method, System.Web.UI.Control in ASP.NET, 867

DataColumn, ADO.NET, 796–97 DataColumn objects, ADO.NET, 796, 798 DataColumn, System.Data, ADO.NET, 764 DataReader object, ADO.NET data providers,

761

DataRelation objects in multitabled DataSet objects, ADO.NET, 817–20

DataRelation, System.Data, ADO.NET, 764 DataRow objects, ADO.NET, 798–801 DataRow, System.Data, ADO.NET, 764

DataRow.RowState property, ADO.NET, 799–800 DataRowState enumeration values, ADO.NET,

799

DataSet class, ADO.NET, 764, 794–96 DataSetName property, ADO.NET DataSet class,

795

Datasource property, DbConnection, ADO.NET, 779

DataTable class, ADO.NET, 764, 800 DataTableReader objects, ADO.NET, 802 DataTableReader, System.Data, ADO.NET, 764 DataType property, ADO.NET DataColumn

object, 796

DataView class, ADO.NET, 765, 810 DateTimePicker control, 721 DbCommand, ADO.NET, 782 DbConnection, ADO.NET, 779 DbDataAdapter members, 811 DbDataReader object, ADO.NET, 782–83 DbParameter, ADO.NET, 789

DbType property, ADO.NET DbParameter, 789 debug vs release build, 318–19

debugging and tracing, ASP.NET, 849–50 DecimalPlaces property, NumericUpDown, 728 decisions and relational/equality operators,

94–96

Decrement( ) method, Interlocked type, multithreaded applications, 472

deep copy, cloneable objects (ICloneable), 242 default constructor, 70–71

default input button, 719 default keyword, generics, 333

default.aspx content page example, ASP.NET, 875–76

DefaultEvent attribute, controls, 748 DefaultEventAttribute,

System.ComponentModel, 746 DefaultProperty attribute, controls, 748 DefaultPropertyAttribute,

System.ComponentModel, 746 DefaultValue attribute, controls, 747

■I N D E X 963

DefaultValue property, ADO.NET DataColumn	Directory type, System.IO, 523–24
object, 796	DirectoryInfo class
DefaultValueAttribute,	Create( ), CreateSubdirectory( ) methods,
System.ComponentModel, 746	519, 522–23
DefaultWsdlHelpGenerator.aspx, 925–26	Delete( ) method, 519
DefineEnum( ) method, ModuleBuilder type,	GetDirectories( ) method, 519
510	GetFiles( ) method, 520–22
DefineResource( ) method, ModuleBuilder type,	MoveTo( ) method, 520
510	Parent property, 520
DefineType( ) method, ModuleBuilder type, 510	Root property, 520
delayed digital signing of assemblies, 375–76	DirectoryName, FileInfo class, System.IO, 526
delegates	dirty windows, Paint event, GDI+, 656
asynchronous call, 260–61	DISCO web service UDDI directory, 921
CIL code for simple example, 264	disconnected layer, ADO.NET, 793
compared with C-style callbacks, 259	DispatchMessage( ) method, remoting
complex example, 270–71	ChannelServices, 579
contravariance, 276	disposable objects
covariance, 275–76	code example, 191
delegate keyword, 259	Dispose( ) method, 191
description, 259	IDisposable interface, 191–93
example, 266–68	disposing Graphics objects, GDI+, 658–59
information in, 259	dll, 485
multicast, 262, 268–70	DLL hell, 5
and multithreaded applications, 451, 453	DllImport attribute, 409
NullReferenceException, 267–68	/doc compiler flag, 177
overview, 255	Dock property, controls, 755–56
as parameters, 271–73, 275	DockStyles enumeration values, 755
simple example, 263–64	Document Object Model (DOM), ASP.NET, 836
synchronous call, 260	documentation of source code, with XML,
type safe, 264–65	175–77
types, 17	DoEvents( ) method, Application class, 609
delegation, description, 160	DomainUnload event, System.AppDomain,
Delete( ) method	436, 439–40
ADO.NET DataRow object, 799	DomainUpDown, 728
DirectoryInfo class, 519	dot operator and references, 180
FileInfo class, System.IO, 526	dotnetfx.exe, .NET runtime deployment, 29
DeleteCommand property in updating,	download cache, 352
ADO.NET, 815	DriveInfo class, System.IO, 517, 524–25
deleting	dynamic assemblies
records, ADO.NET, 787	code DOM provider, 513
rows, ADO.NET, 806–7	ConstructionBuilder example, 511–12
deployment, .NET runtime, 29	definition, 505
derived class, description, 146	emitting a method, 512
DescriptionAttribute,	emitting type and member variables
System.ComponentModel, 746	examples, 510
Designer.cs file, 702–3	overview, 477
detailed content page example, ASP.NET,	vs. static assemblies, 504–5
881–83	using dynamically generated assembly,
developing software, 3–5	512–13
device coordinates, GDI+ coordinate systems,	dynamic loading, 402–3
659–60	dynamic positioning, controls, 754–55
dialog boxes, custom, 750–52	dynamic web service discovery using DISCO,
differences, classes, objects, references, 179	921
digital signatures, and strong names, 371, 373	■E
Direction property, ADO.NET DbParameter, 789	■E
directives, compiler, 478	ECMA standardization, .NET Framework, 29
Directory	edit processing members, ADO.NET DataRow
DirectoryInfo types, input/output,	object, 799
System.IO, 517–19	Eiffel .NET programming language, 8
FileInfo class, System.IO, 526

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