Download Designing Enterprise Applications with Microsoft Visual by Robert Ian Oliver PDF
By Robert Ian Oliver
The way to positioned the facility of visible simple .NET to paintings to layout and enforce firm applications!Most books approximately visible uncomplicated .NET specialize in the language or the improvement surroundings, yet few offer you insights into severe layout judgements. This e-book presents the exact assistance you must make the suitable offerings as you layout and construct enterprise-level purposes with visible easy .NET. The author-a former member of the Microsoft visible StudioR .NET staff with huge adventure in designing, trying out, and optimizing company applications-discusses the technical and architectural trade-offs you are going to face as you increase huge, multitier, multideveloper disbursed purposes. He additionally exhibits the way to create a plausible firm infrastructure, and he unearths inside of tips and strategies for implementation, functionality tuning, and checking out. you will find out the way to make the most of key state of the art OOP good points in visible uncomplicated .NET plus platform improvements in Microsoft .NET to boost critical company purposes quickly...
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Extra resources for Designing Enterprise Applications with Microsoft Visual Basic .NET
An alternative implementation would not be a "true" singleton because it could be used in a manner not consistent with being a singleton (to create multiple instances or derive classes that could create multiple instances). This is a key concept in projects that involve multiple developers: design your classes and your interface for how they should be used. Never give developers a choice. If a class should not be inherited from, mark it NotInheritable. If you intend a class to be used as a singleton, implement it as a true singleton.
Best of all, they are totally hands-free. You don't have to do anything other than define the constructor itself. Shared constructors are not the only way to define or initialize shared variables, but they are the most flexible option and are definitely worth considering. Alternatively, you can specify a default value for your shared variables without a shared constructor this works well for simple initialization needs. If you need to do something more complicated (something that requires file I/O, for instance) you'll probably want to use the shared constructor instead.
Use them well, and use them wisely. Inheritance: The Wily Beast of OOP Inheritance is a tricky subject. By all accounts, inheritance is a good thing, but developers don't always use it in the way it was intended. Inheritance just for the sake of inheritance is a really bad idea. The most common reason for using inheritance is code reuse. But other, valid reasons include standardization (predefining critical subclass structures), extending behaviors of existing classes, and encapsulation. NET: interface inheritance and implementation inheritance.