By Christian Gross

Foundations of Object-Oriented Programming utilizing .NET 2.0 styles solves the object-oriented and pattern-programming challenge through blending the 2 - the publication teaches object-oriented ideas utilizing styles, or a solutions-based technique. The book's fabric is equipped round initiatives and styles, and illustrated via improvement difficulties and options that come with endurance, code potency, and sturdy design.This e-book is of particular curiosity to those that are looking to how you can use .NET 2.0 Generics together with styles. This exact booklet relies at the author's lectures, and the knowledge unfolds in a realistic demeanour.

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This means that a fatal error message won’t exit your application or generate an exception. Your application needs to do those things manually. Log4net is intended to be used in conjunction with other error-handling mechanisms. In the example source code, the property IsDebugEnabled was tested before calling the method Log. This is necessary for performance reasons. Otherwise, there are performance ramifications, and an application is slowed down unnecessarily. The log4net framework doesn’t verify that the proper enabled property is called before calling a logging method.

The first impression is that you use the class CallTracer to trace each method call. This is an incorrect impression, because the purpose of CallTracer is to track blocks of functionality. In many cases, a block of functionality starts and ends with a single method call. The idea is to use the CallTracer class to track the flow of the program, adding messages at critical points. You shouldn’t implement tracing under all circumstances, because doing so complicates many pieces of code. Following is a list of scenarios in which tracing sequences are implemented: • Interface and component implementations: An important functionality is implied whenever an interface is implemented.

Let’s say BaseClass is instantiated. If the instance is downcast to Subclassed, then Subclassed is called because it has an implementation of SimpleMethod. If the instance is cast back to BaseClass, which has its own SimpleMethod implementation, then BaseClass will be called. This is a clean inheritance model because the implementation you execute is based on the cast type. Inheritance Using Virtual Functions In the simple inheritance example you saw in the previous section, the method of the type is the method that’s called.

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