microsoft visual c 2008

... about creating your own classes in Chapter 7, “Creating and Managing Classes and Objects.” Controlling Precedence Precedence governs the order in which an expression’s operators are evaluated Consider ... want to exit Visual Studio 2008 now On the File menu, click Exit If you see a Save dialog box, click Yes (if you are using Visual Studio 2008) or click Save (if you are using Visual C# 2008 Express ... method 6 Right-click the call to the calculateFee method in the run method, and then click Generate Method Stub The calculateFee method is generated, like this: private object calculateFee(double

Ngày tải lên: 12/08/2014, 21:20

... ReturnCardsTo(Pack pack) { foreach (PlayingCard card in cards) { pack.Accept(card); } cards.Clear(); } Chapter 10 Using Arrays and Collections... and cannot grow or shrink A collection can dynamically ... containing other collections can be somewhat confusing to use Chapter 10 Using Arrays and Collections 201 Using Collection Classes... record which slots in the hand no longer contain a PlayingCard You ... click Deal The shuffled cards are dealt to the four hands as before 6 Click Return to Pack The hands are cleared The cards are now back in the pack 7 Click Deal again The shuffled cards are once

Ngày tải lên: 12/08/2014, 21:20

... } } Call a destructor You can’t call a destructor Only the garbage collector can call a destructor. Force garbage collection (not recommended) Call System.GC.Collect Release a resource at ... calling the static method System GC.Collect However, except in a few cases, this is not recommended The System.GC.Collect method starts the garbage collector, but the process runs asynchronously, ... (required) keyword combinations when creating classes and interfaces Keyword Interface Abstract class Class Sealed class Structure 1 An interface can extend another interface and introduce a new method

Ngày tải lên: 12/08/2014, 21:20

... Explorer, right-click the QueryBinaryTree project, and then click Add Reference In the Add Reference dialog box, click the Projects tab, select the BinaryTree project, and then click OK 11 In ... citiesAndCustomers = customers Select(c => new { c.FirstName, c.LastName, c.CompanyName }) Join(addresses, custs => custs.CompanyName, addrs => addrs.CompanyName, (custs, addrs) => new {custs.FirstName, ... both occur twice You can eliminate duplicates from the calculation by using the Distinct method, like this: int numberOfCountries = addresses.Select(addr => addr.Country).Distinct().Count();

Ngày tải lên: 12/08/2014, 21:20

... list box, click some of the methods to select the corresponding check box. If you click a method a second time, it clears the corresponding check box, just as you would expect. 16. Click the ... list, and click the year so that you can select a year by using a numeric up-down control. 14. Click each of the radio buttons in the Experience group box. Notice that you cannot select more ... Items collection in the methods list box. If you recall, this list box contains check box controls. Each check box is examined in turn, and if the user has selected it, the text in the Content

Ngày tải lên: 12/08/2014, 21:20

... Account Control message box, click Continue If the Security page contains the message “To change permissions, click Edit” click Edit If a User Account Control message box appears, click Continue ... ADO.NET Connection object (The DataContext class actually creates an ADO.NET connection behind the scenes.) The generic GetTable<TEntity> method of the DataContext class expects an entity class ... Explorer window, right-click Data Connections, and then click Add Connection 6.3 If the Choose Data Source dialog box appears, click the Microsoft SQL Server Database File data source, make sure the

Ngày tải lên: 12/08/2014, 21:20

... pass-the Microsoft Visual Studio 2008 documentation 10 In the Access Rules section, click Create access rules The Add New Access Rule page appears You use this page to specify which users can access ... Under Permission, click Allow, and then click OK This rule grants John access to the Web site The Security screen reappears 14 In the Access Rules section, click Create access rules again ... menu, click Database Explorer 5.2 In the Database Explorer window, right-click Data Connections, and then click Add Connection 5.3 In the Add Connection dialog box, click Change 5.4 In the Choose

Ngày tải lên: 12/08/2014, 21:20

... following code is necessary to retrieve the single row accessed in the pseudocode presented earlier // Specify the connection to the DB SqlConnection c = new SqlConnection(…); // Open the connection ... have to store the SQL in a Command object, associate the Command with a Connection object and execute it on that Connection object, then use a DataReader or other object to retrieve the result ... all numeric values from a sequence Concatenation Concat Merges elements from two sequences Conversion AsEnumerable Converts the sequence to a generic IEnumerable<T> AsQueryable Converts

Ngày tải lên: 10/12/2013, 23:15

... TestKPolicyLibrary.dll is written in Visual Basic 6.0 The class that performs the calculations is named cPolicyActions The CalculateRenewal function of cPolicyActions accepts a policy identification ... cs filename extension added Incorrect Answers B, C: The CreateObject function creates and returns a reference to a COM object CreateObject cannot be used to create instances of classes in Visual ... no action will occur, but exceptions are generated This is what has occurred in this scenario Reference: NET Framework Class Library, Rule Enumeration [C#] Incorrect Answers A: Cascade specifies

Ngày tải lên: 24/01/2014, 09:20

... and other processes applica-on the computer You can use the Capplica-oncurrency Visualizer to locate performance bottlenecks, processor underutilization, thread conten-tion, cross-core thread ... environment is also a characteristic of some embedded applications, such as industrial process control The life cycle of such programs matches the life cycle of the specific hard-ware they were ... techniques that synchronize concurrent threads by blocking their execution in certain circum-stances Examples include locks, atomic compare-and-swap opera-tions, and semaphores All of these techniques

Ngày tải lên: 24/03/2014, 01:21

... Windows Controls thích hợp – Đặt các thuộc tính cho các Windows Controls • Bước 2: Viết lệnh – Xác định các công việc cần thực hiện  chọn các sự kiện thích hợp trên các Windows Controls – Viết các ... Bước 3: Khai báo • Khung Project types : chọn Visual C# • Khung Templates : chọn Windows Form Application • Khung Name: Nhập tên HelloWorld • Khung Location : chọn ổ đĩa C:\ – Click OK. Trang 4Copyright ... phương thức đáp ứng các sự kiện trên Trang 10Copyright © Wondershare Software• Các Windows Controls : – Control là lớp (class) các thành phần được thêm vào Windows Forms để tương tác giữa người

Ngày tải lên: 09/04/2014, 01:40

... project Click OK Create a new console application using Visual C# 2010 Express On the File menu, click New Project to open the New Project dialog box For the template, select Console Application ... when an instance of the class is created and can contain code to initialize the instance You will learn about constructors in Chapter 7 ) In fact, the application contains a lot more code, but most ... New Project dialog box In the left pane, under Installed Templates, click Visual C# In the middle pane, click Console Application Specify a directory for the project files in the Location box

Ngày tải lên: 05/07/2014, 16:20

... Microsoft Visual Studio 2010 if it is not already running 2 Open the Selection project, located in the \Microsoft Press\Visual CSharp Step By Step \Chapter 4\Selection folder in your Documents ... focus calcula-on how to solve them calcula-one piece at a time You also need to be able to write methods that selectively perform different actions depending on the circumstances In this chapter, ... code for MainWindow xaml cs in the Code and Text Editor window Trang 12Chapter 4 Using Decision Statements 81 7 Locate the compareClick method It looks like this:private int compareClick(object

Ngày tải lên: 05/07/2014, 16:20

... two references to the same object For example: Circle c = new Circle(42); Circle refc = c; Declare a variable that can hold a value type or the null value Declare the variable using the ? ... A structure is a value type A class is a reference type Do instances live on the stack or the heap? Structure instances are called values and live on the stack Class instances are called ... classes and structures concerning inheritance These differences are covered in Chapter 12 Declaring Structure Variables After you have defined a structure type, you can use it in exactly the same

Ngày tải lên: 05/07/2014, 16:20

... constructor (If you don’t provide one, the compiler generates a default constructor for you ) It is good practice for a constructor in a derived class to call the constructor for its base class ... that the compiler generates only a default structor if you don’t write any nondefault constructors), in which case forgetting to call the correct base class constructor results in a compile-time ... ” Trang 23Understanding protected AccessThe public and private access keywords create two extremes of accessibility: public fields and methods of a class are accessible to everyone, whereas

Ngày tải lên: 05/07/2014, 16:20

... brightly colored clothes. Christian Nagel is a software architect, trainer, and consultant, and an associate of Thinktecture ( www.thinktecture.com), offering training and coaching based on Microsoft ... PC since the early 1990s using various languages, including Pascal, Visual Basic, C/ C++, and C# . Jacob has co-authored a number of .NET books and works with a wide variety of Microsoft technologies, ... specifically the chapters on collections, generics, and C# 3.0 language additions (Chapters 11 to 14 ), or skip the first section of the book completely and start with Chapter 15 . The chapters...

Ngày tải lên: 09/08/2014, 14:21

... can place identical (or near identical) sections of code in your application whenever necessary, but this has its own problems. Changing even one minor detail concerning a common task (to correct ... function for a console application. When a C# application is executed, the entry point function it contains is called; and when this function is completed, the application terminates. All C# ... application that accepts a string from the user and outputs a string with the characters in reverse order. 6. Write a console application that accepts a string and replaces all occurrences...

Ngày tải lên: 09/08/2014, 14:21

... project is called Ch10CardClient. To use the class library you have created from this new console application project, add a reference to your Ch10CardLib class library project. Once the console ... Both your classes and your enumerations will be contained in a class library project called Ch10CardLib. This project will contain four .cs files: Card.cs , which contains the Card class definition, ... interfaces that require implementation. 5. Create a console application project, Traffic, that references Vehicles.dll (created in question 4). Include a function called AddPassenger that accepts...

Ngày tải lên: 09/08/2014, 14:21

... 3. Select the Animal.cs , Cow.cs , Chicken.cs , SuperCow.cs , and Farm.cs files from the C: \BegVCSharp\Chapter12\Ch12Ex04\Ch12Ex04 directory, and click Add. 4. Modify the namespace declaration ... follows: namespace Ch14Ex01 5. Add a default constructor to the Cow , Chicken , and SuperCow classes. For example, for Cow add the following code: namespace Ch14Ex01 { public class Cow : Animal ... application called Ch13Ex03 and save it in the directory C: \BegVCSharp\Chapter13. 2. Copy the code across for Program.cs , Connection.cs , and Display.cs from Ch13Ex02, making sure that you change...

Ngày tải lên: 09/08/2014, 14:21

... PM Chapter 16: Advanced Windows Forms Features 525 This chapter focuses on user controls, because designing and drawing a custom control from scratch is beyond the scope of this book. Chapter ... container: public frmContainer() { InitializeComponent(); // Create a new instance of the child form. MdiBasic.frmChild child = new MdiBasic.frmChild(this); // Show the form. child.Show(); } ... You create a new instance of the child class and pass this to the constructor, where this represents the current instance of the MDI container class. Then you call Show() on the new instance...

Ngày tải lên: 09/08/2014, 14:21