vb c and the net languages

... and decision constructs, and the construction of valid code statements Chapter 4: VB 2005 Programming Constructs, Part II Here you will complete your examination of basic coding constructs The ... this chapter, however, is to acquaint you with a number of NET- centric building blocks, such as the common language runtime (CLR), Common Type System (CTS), Common Language Specification (CLS), and ... is to acclimate you to the core aspects of the NET platform, the NET type system, and various development tools (many of which are open source) used during the construction of NET applications...

Ngày tải lên: 03/06/2014, 01:42

... Implementing the Spell Checking Logic 1249 Understanding WPF Control Commands 1250 The Intrinsic Control Command Objects 1250 Connecting Commands to the Command Property ... Service Asynchronously from the Client 1117 Designing WCF Data Contracts 1119 Using the Web-Centric WCF Service Project Template 1120 Implementing the Service Contract ... CONTENTS AT A GLANCE ■Chapter 16: Processes, AppDomains, and Object Contexts 653 ■Chapter 17: Understanding CIL and the Role of Dynamic Assemblies 687 ■Chapter 18: Dynamic Types and the...

Ngày tải lên: 01/08/2014, 16:35

... and decision constructs, and the construction of valid code statements Chapter 4: VB 2005 Programming Constructs, Part II Here you will complete your examination of basic coding constructs The ... this chapter, however, is to acquaint you with a number of NET- centric building blocks, such as the common language runtime (CLR), Common Type System (CTS), Common Language Specification (CLS), and ... is to acclimate you to the core aspects of the NET platform, the NET type system, and various development tools (many of which are open source) used during the construction of NET applications...

Ngày tải lên: 12/08/2014, 23:21

... 2005 conversion functions Table 3-7 VB 2005 Conversion Functions Conversion Function Meaning in Life CBool CByte CChar CDate CDbl CDec CInt CLng CObj CSByte CShort CSng CStr CUInt CULng CUShort Converts ... our application Figure 3-6 The System.Console type in action ■ Source Code The BasicConsoleIO project is located under the Chapter subdirectory The System Data Types and VB 2005 Shorthand Notation ... to the system directory UserName Returns the name of the user that started this application ■ Source Code The FunWithMain project is located under the Chapter subdirectory The System.Console Class...

Ngày tải lên: 12/08/2014, 23:21

... Select each of them (via a Ctrl+left click) and click the OK button Visual Studio 2005 responds by copying each file into the current project Once you have done so, compile your current application ... exception classes end with the “Exception” suffix; in fact, this is a NET best practice) ' This custom exception describes the details of the car-is-dead condition Public Class CarIsDeadException ... place If this is the case, the caller’s catch logic can make use of the InnerException property to extract the details of the inner exception object The Finally Block A Try/Catch scope may also define...

Ngày tải lên: 12/08/2014, 23:21

... allow the client to add a method to the delegate’s invocation list In concept, these methods are similar to the Connect() and Disconnect() methods we created during the EventInterface example Of course, ... sinks to car myCar.Connect(sink) myCar.Connect(otherSink) ' Speed up (this will trigger the events) For i As Integer = To myCar.Accelerate(20) Next ' Detach from first sink myCar.Disconnect(sink) ... this is not the case in traditional callback functions, and, as you may suspect, can therefore be a frequent source of bugs, hard crashes, and other runtime disasters Nevertheless, callbacks are...

Ngày tải lên: 12/08/2014, 23:21

... this is not the case, click the Other button and navigate to the location of the client program you wish to configure For this example, select the CSharpCarClient.exe application created earlier ... reference to SharedCarLibClient.exe by right-clicking the Applications node Once you do, expand the plus sign (+) icon and select the Configured Assemblies subnode From here, click the Configure ... that client application directories not need to contain specific *.config files Rather, the CLR will read the current manifest and attempt to find the requested version in the GAC However, if the...

Ngày tải lên: 12/08/2014, 23:21

... exactly one COM class, ComCalc, which is marked using the coclass (i.e., COM class) keyword The Role of the [default] Interface According to the laws of COM, the only possible way in which a COM ... is the case, it should be clear that you cannot run the tlbimp.exe utility in the first place For these rare occurrences, you can access classic COM types using NET reflection services The process ... VB 6.0, the default interface is completely hidden from view However, when you write the following VB 6.0 code: ' VB 6.0 COM client code Dim c As ComCalc Set c = New ComCalc ' [default] _ComCalc...

Ngày tải lên: 12/08/2014, 23:21

... of the NET delegate type is the fact that the logic used to invoke remote methods asynchronously is identical to the process of local method invocations ■ Source Code The AsyncWKOCarProviderClient ... when the Form receives focus as the active window on the desktop The logical counterpart to the Activated event is (of course) Deactivate, which fires when the Form loses focus as the active ... each Form is composed of two * .vb files Right-click the MainForm .vb icon and select View Code Here you will see a class type that will contain all of the Form’s event handlers, custom constructors,...

Ngày tải lên: 12/08/2014, 23:21

... using the Appearance enumeration AutoCheck Gets or sets a value indicating if the Checked or CheckState value and the CheckBox’s appearance are automatically changed when it is clicked CheckAlign ... of these new attributes, close down the CarControlTestForm project and reopen your CarControlLibrary project Let’s create a custom category called “Car Configuration” to which each property and ... (Me.checkedBoxRadioOptions) End Sub Now update the logic behind the Click event for the Confirm Order button Ask the CheckedListBox which of its items are currently selected and add them to the...

Ngày tải lên: 12/08/2014, 23:21

... Source Configuration Wizard On the first step, simply select the Database icon and click Next On the second step, click New Connection and establish a connection to the Cars database (using the ... automatically obtain command objects that contain the correct Insert, Delete, and Update command types based on the initial Select statement The SqlCommandBuilder automatically generates the values contained ... the HTTP MIME type of the output stream Cookies Gets the HttpCookie collection sent by the current request IsClientConnected Gets a value indicating whether the client is still connected to the...

Ngày tải lên: 12/08/2014, 23:21

... within a client-side *.config file wsdl /out:proxy .vb /language :VB /n:CalcClient /urlkey:CalcUrl http://localhost/CalcService/Service.asmx?wsdl If you now check out the default constructor of the ... grid Dim cn As SqlConnection = New SqlConnection() cn.ConnectionString = "User ID=sa;Pwd=;Initial Catalog=Cars;Data Source=(local)" cn.Open() Dim cmd As SqlCommand = New SqlCommand("Select * from ... created a new IIS virtual directory (CalcService), which contains the content for the CalculatorService project developed earlier in this chapter Once you have done so, you can generate the client...

Ngày tải lên: 12/08/2014, 23:21

... your C# compiler to check all of your code for CLS compliance The Role of the Base Class Libraries In addition to the CLR and CTS/CLS specifications, the NET platform provides a base class library ... explain the role of the NET 4.0 Dynamic Language Runtime (DLR) and the C# 2010 dynamic keyword Later chapters will examine some fairly advanced topics, such as object context, CIL code, and the construction ... System.Object collections via covariance and contravariance Perhaps the most important point to understand about the C# language is that it can only produce code that can execute within the NET runtime...

Ngày tải lên: 04/10/2013, 14:07

... Look at the NET Platform Some Key Benefits of the NET Platform Introducing the Building Blocks of the NET Platform (the CLR, CTS, and CLS) .4 The Role of the Base Class Libraries ... For your convenience Apress has placed some of the front matter material after the index Please use the Bookmarks and Contents at a Glance links to access them Pro C# 5.0 and the NET 4.5 Framework ... Handlers 1184 Implementing the Spell Checking Logic 1185 Understanding WPF Commands 1186 xliii  CONTENTS The Intrinsic Command Objects 1186 Connecting...

Ngày tải lên: 06/03/2014, 03:20

... binding The final topic of this chapter explores the role of NET attributes (both standard and custom) To illustrate the usefulness of each of these topics, the chapter concludes with the construction ... nature of the NET platform and the role of the Common Language Infrastructure (CLI) Chapter 2: Building C# Applications The goal of this chapter is to introduce you to the process of compiling and ... syntactical constructs introduced with NET 2.0 As well, Part exposes you to each member of the CTS (classes, interfaces, structures, enumerations, and delegates) and the construction of generic...

Ngày tải lên: 01/06/2014, 11:39

... For your convenience Apress has placed some of the front matter material after the index Please use the Bookmarks and Contents at a Glance links to access them Pro C# 5.0 and the NET ... Look at the NET Platform Some Key Benefits of the NET Platform Introducing the Building Blocks of the NET Platform (the CLR, CTS, and CLS) .4 The Role of the Base Class Libraries ... Handlers 1184 Implementing the Spell Checking Logic 1185 Understanding WPF Commands 1186 xliii  CONTENTS The Intrinsic Command Objects 1186 Connecting...

Ngày tải lên: 28/06/2014, 15:20

... to class types Table 1-1 CTS Class Characteristics Class Characteristic Meaning in Life Is the class “sealed” or not? Sealed classes cannot function as a base class to other classes Does the class ... instruct the C# compiler to check your code for CLS compliance using a single NET attribute: // Tell the C# compiler to check for CLS compliance [assembly: System.CLSCompliant(true)] oa d o rg Chapter ... end of method Calc::Add w 14 s Source Code The Calc.cs and Calc .vb code files are included under the Chapter subdirectory 8849CH01.qxd 10/1/07 10:30 AM Page 15 Simpo PDF Merge and Split Unregistered...

Ngày tải lên: 12/08/2014, 23:20

... to the Motorcycle class: class Motorcycle { public int driverIntensity; o oa d nl // Put back the default constructor public Motorcycle() {} ee -e bo o ks - w // Our custom constructor public ... new Console Application project named StaticData: w w When you create SavingsAccount objects, memory for the currBalance field is allocated for each class instance Static data, on the other hand, ... savings account class class SavingsAccount { public double currBalance; // A static point of data public static double currInterestRate = 0.04; public SavingsAccount(double balance) { currBalance =...

Ngày tải lên: 12/08/2014, 23:20

... ADO, under ADO .NET we have numerous connection objects we may choose between (SqlConnection, OracleConnection, OdbcConnection, etc.) Regardless of the fact that each connection object has a unique ... INTERFACES s Source Code The InterfaceNameClash project is located under the Chapter subdirectory Designing Interface Hierarchies o rg Interfaces can be arranged into an interface hierarchy Like a class ... into account each reference type member variable s Source Code The CloneablePoint project is located under the Chapter subdirectory Building Comparable Objects (IComparable) The System.IComparable...

Ngày tải lên: 12/08/2014, 23:20

... declare a local variable that allocates memory directly from the call stack (and is therefore not subject to NET garbage collection) To so, C# provides the stackalloc keyword, which is the C# ... by classical inheritance (the “is-a” relationship) In this case, the C# conversion process allows you to cast up and down the class hierarchy For example, a derived class can always be implicitly ... for consistency with the C and C+ + programming languages In C# , there is no separate preprocessing step Rather, preprocessing directives are processed as part of the lexical analysis phase of the...

Ngày tải lên: 12/08/2014, 23:20