Tod Golding's Professional .NET 2.0 Generics PDF

By Tod Golding

ISBN-10: 0764559885

ISBN-13: 9780764559884

The ability and style of universal varieties have lengthy been stated. Generics permit builders to parameterize info kinds very like you are going to parameterize a mode. This brings a brand new measurement of reusability in your kinds with no compromising expressiveness, type-safety, or potency. Now .NET generics makes this energy to be had to all .NET builders. through introducing regular innovations without delay into the typical Language Runtime (CLR), Microsoft has additionally created the 1st language-independent generics implementation. the result's an answer that enables frequent forms to be leveraged via all of the languages of the .NET platform.

This publication explores all points of the .NET generics implementation, masking every thing from basic ordinary ideas, to the weather of commonly used syntax, to a broader view of ways and in case you may perhaps follow generics. It digs into the main points linked to developing and eating your personal widely used periods, buildings, tools, delegates, and interfaces, interpreting all of the nuances linked to leveraging each one of those language constructs. The ebook additionally appears to be like at directions for operating with widely used forms, the functionality earnings accomplished with generics, the recent normal box libraries (BCL and 3rd party), and key elements of the underlying .NET implementation.

For these transitioning from C++, the booklet offers an in-depth examine the similarities and modifications among templates and.NET generics. It additionally explores the syntactic diversifications linked to utilizing generics with all of the .NET languages, together with C#, visible easy, J#, and C++.

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Extra info for Professional .NET 2.0 Generics

Example text

Big”)); Notice that, as each TreeNode is constructed, it must be provided with a data type. In this example, a SalesPerson data type is provided, which then forces all references to the type parameter T to be replaced, at run-time, with the type SalesPerson. And, as you access the contents of your tree, it’s able 9 Chapter 1 to return you these SalesPerson instances without requiring those unappealing casts that you were forced to employ in the previous example. Although this example only provides a small glimpse into the functionality of a generic type, it should make it apparent that generics are going to find their way into your code.

Its signature tells you precisely what data types are used for your incoming key/value parameter pairs. It also is very explicit about the type of objects that will be held in the returned list. So, when I look at these two examples, I see the added syntax introduced by generics as a blessing. I don’t see it as muddying the profile of my method. Instead, I see it as adding a much-needed means of qualifying, in detail, the nature of my types. 32 Valuing Type Safety The truth is, generics should allow you to demand much more from the APIs you consume and expose.

Mostly, you just need to provide the additional type parameter to the class when you declare each new instance of the TreeNode. This will provide the compiler and the CLR all the information they need to successfully construct the run-time representation of your generic class. AddChild(New SalesPerson(555, “Mr. AddChild(new SalesPerson(555, “Mr. Big”)); Notice that, as each TreeNode is constructed, it must be provided with a data type. In this example, a SalesPerson data type is provided, which then forces all references to the type parameter T to be replaced, at run-time, with the type SalesPerson.

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Professional .NET 2.0 Generics by Tod Golding


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