Accelerated VB 2005 phần 10 pps

... with, 102 classes and, 54–57 example of bad, 107 108 implementations and, 109 interfaces and, 121 as is-a relationship, 104 member hiding and, 104 107 overridden methods and, 92 overview of, 101 pitfalls ... Basic 2005 for Developers. http://msdn2.microsoft.com/en-us/vbrun/ms788235.aspx Microsoft Visual Basic 2005 Express Edition. http://msdn.microsoft.com/vstudio/express /vb/...

Ngày tải lên: 09/08/2014, 12:22

... POLYMORPHISM, AND ENCAPSULATION 110 801-6CH06.qxd 3/2/07 8:21 AM Page 110 Operator Overloading Overloaded operators are a new feature in Visual Basic 2005 (VB 2005) , providing the capa- bility ... operators is not part of the Common Language Specification (CLS). For example, VB 2005 is the first version of VB that supports operator overloading. It’s important that your overloade...

Ngày tải lên: 09/08/2014, 12:22

... BY PROFESSIONALS ® Accelerated VB 2005 Dear Reader, Are you an experienced developer who wants to master Visual Basic 2005 (VB 2005) and .NET 2.0? If so, then Accelerated VB 2005 is just for you. ... Available THE APRESS ROADMAP Beginning VB 2005 Databases Beginning Object-Oriented Programming with VB 2005 Accelerated VB 2005 Beginning Visual Basic 2005 Expres...

Ngày tải lên: 09/08/2014, 12:22

... switches that you can use with gacutil.exe: CHAPTER 2 ■ VB 2005 AND THE CLR20 801-6CH02.qxd 2/15/07 9:24 PM Page 20 reference types, and VB will generate a compiler error if you try to use Is/IsNot ... Location value in the calling scope. The output from the example is as follows: ( 50, 50 ) ( 10, 10 ) Enumerations Enumerations (Enum) make coding easier by allowing you to create a st...

Ngày tải lên: 09/08/2014, 12:22

... read-write, read-only, or write-only access to your properties. Beginning with Visual Basic 2005 (VB 2005) , Get and Set accessors can have different accessibility levels, provided that the Set ... MustOverride Methods VB implements the notion of Overridable (virtual) and MustOverride (abstract) methods, just as other object-oriented (OO) languages do. That’s no surprise at all, since...

Ngày tải lên: 09/08/2014, 12:22

... C: \Accelerated VB 2005\ Projects\Exceptions\Exception4 .vb: line 18 End of inner exception stack trace at Exceptions.Entrypoint.Main() in C: \Accelerated VB 2005\ Projects\Exceptions\Exception4 .vb: line ... sometimes you might need to interface with external systems using encodings other 185 CHAPTER 10 801-6CH10.qxd 3/3/07 3:03 AM Page 185 units. In essence, this idiom amplifie...

Ngày tải lên: 09/08/2014, 12:22

... System Imports System.Text Imports System.Text.RegularExpressions CHAPTER 10 ■ WORKING WITH STRINGS 210 801-6CH10.qxd 3/3/07 3:04 AM Page 210 For convenience, all the methods that append and insert data ... & _ vbCrLf & "# OR " & vbCrLf & _ "|2[0-4]\d # Starts with a 2, after a number from 0-4" & _ vbCrLf & " # and then any digit" &...

Ngày tải lên: 09/08/2014, 12:22

... statements manage the addition and removal of delegates from the event delegate chain. Custom Events VB 2005 has added a new keyword, Custom, as a modifier for the Event statement. Custom events allow ... types. Efficiency and Type Safety of Generics Efficiency is arguably one of the greatest gains from generics in VB. A regular array, based on System.Array, can contain a heterogeneous c...

Ngày tải lên: 09/08/2014, 12:22

... addition to VB and the CLR. Summary This chapter has shown you how to declare and use generics, including generic classes, struc- tures, interfaces, methods, and delegates, with VB 2005. We also ... and measurable gain in efficiency and safety with generics. Support for generics in .NET 2.0 and VB 2005 is a welcome addition to the language. Not only does generics allow you to genera...

Ngày tải lên: 09/08/2014, 12:22

... side effect of the VB language not supporting deterministic destruction. The VB compiler doesn’t call IDisposable.Dispose() on your object automatically when it goes out of scope. VB, as we’ve mentioned ... equality operators thoroughly. VB is one language that has taken a while to support operator overloading, and it now only supports equality operators fully in VB 2005. The best a...

Ngày tải lên: 09/08/2014, 12:22