Xem 1-17 trên 17 kết quả Delegates and events.
  • Objectives of the Lesson Delegates and Events is introduce delegates and events (defining delegate types, invoking through delegates, registering multiple targets); discuss design benefits of using delegates.

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  • Lecture Programming C# - Chapter 14 introduce delegates and events and discuss design benefits of using delegates. Main content in this chapter: Delegates are objects that invoke methods on other objects, events add semantic/syntactic layer to delegates.

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  • This module covers three areas of useful functionality that may be implemented in a class; namely, operators, delegates, and events. After completing this module, students will be able to: Use operators to manipulate the types and classes supplied with the Microsoft® .NET Framework. Use delegates to decouple a method call from its implementation. Add event specifications to a class to allow subscribing classes to be notified of changes in object state.

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  • In this demonstration, you will use Microsoft Visual Studio® .NET to run code in which a delegate to a light object’s method is passed to a switch object. When the switch object’s state changes, the switch object calls the light object’s method and passes its new state.

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  • Visual Basic 2005 (VB 2005) is relatively easy to learn for anyone familiar with another object-oriented language. Even someone familiar with Visual Basic 6.0, who is looking for an object-oriented language, will find VB 2005 easy to pick up. However, though VB 2005, coupled with .NET, provides a quick path for creating simple applications, you still must know a wealth of information and understand how to use it correctly in order to produce sophisticated, robust, fault-tolerant applications.

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  • Classes are reference types that allow you to create instances of objects and use them in special ways to meet your application’s requirement. Another reference type in C# is delegate. Delegates allow you to change the reference to a method at runtime. This means that you can decide the execution of a method at run-time, based on the requirements of your application. The method can be activated at the occurrence of an event, where an event is associated with the delegate to call the method at run-time. ...

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  • Introduction to java programming: Chapter 14 - Event-Driven Programming's Objectives is to start with event-driven programming with a simple example; explain the concept of event-driven programming; understand events, event sources, and event classes; declare listener classes and write the code to handle events.

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  • Have access to all aspects of the C# programming language at hand with the C# 2008 Programmer’s Reference, the only comprehensive reference guide for C# programmers. Regardless of your experience with C#, you will appreciate the detailed code samples, which offer a quick and easy way to help you refresh your understanding of important concepts. In this ideal C# resource, you will find an introduction to the .NET Framework, a guide to using Visual Studio 2008, and explanations of classes, objects, types, delegates and events, strings and regular expressions, and threading....

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  • Chapter 14 - GUI and event-driven programming. In this chapter, students will be able to: Define a subclass of JFrame to implement a customized frame window; write event-driven programs using Java's delegation-based event model; arrange GUI objects on a window using layout managers and nested panels; write GUI application programs using JButton, JLabel, ImageIcon, JTextField, JTextArea, JCheckBox, JRadioButton, JComboBox, JList, and JSlider objects from the javax.swing package.

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  • The purpose of Chapter 10 is to demystify the delegate type. After you have examined the use of .NET delegates, you will then be introduced to the C# event keyword. You wrap up by investigating the role of the C# 2008 lambda operator and exploring the connection between delegates, anonymous methods, and lambda expressions.

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  • Exceptions User-Defined Casts Delegates Events Generics Preprocessor Directive Unsafe code Lập trình nâng cao trong C# - Editor: trì Editor: Đoàn Quang Minh Đoà 2 .Errors and Exception Handling Lỗi luôn luôn tồn tại, cho dù hệ thống được thiết kế tốt thế nào – – – – – – Lỗi không được quyền truy cập Lỗi do thiết bị hỏng (đía lỗi) Lỗi do đường truyền mạng hỏng Khi một lỗi xuất hiện, .

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  • C# and .NET Framework Bài 3: Lập trình nâng cao trong C# Đoàn Quang Minh minhdqtt@gmail.com http://www.VTPortal.net Last update: 21.

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  • Assignment Question Article Limited is a credit bureau in Appleby, Texas. It provides credit information on individual borrowers. A credit bureau is also referred as Credit Reference Agency. Companies like Article Limited are a complete profit entity and have no affiliation with any government agency.

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  • Enabling Notifications with Events In the previous section, you saw how to declare a delegate type, call a delegate, and create delegate instances. However, this is only half the story.

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  • As with the national association segment, seasonality is another positive feature of the international association segment. These congresses tend to avoid the summer months when leisure tourism is at its peak, looking instead to the Spring and Autumn periods. There are a large group of conferences that need to be run during the academic vacation period but organisers of these events will look for destinations that have a lower hotel occupancy in the July/August period and, indeed, from mid-June to the end of September.

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  • In the early part of 1863, while I was resident in London,--the first of the War Correspondents to go abroad,--I wrote, at the request of Mr. George Smith, publisher of the Cornhill Magazine, a series of chapters upon the Rebellion, thus introduced:-- "Few wars have been so well chronicled, as that now desolating America.

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  • Conferences in the medical or pharmaceutical sectors often attract lucrative sponsorship from pharmaceutical and medical equipment companies keen to promote their products and these events usually have valuable commercial exhibitions attached. The commercial sponsors will often host groups of their top clients in whichever specialist field and prepare a luxury programme for them. These groups can make up as much as 75% of the delegates attending a conference and there is competition between the companies to provide quality programmes for their delegates e.g.

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