Download Effective C# (Covers C# 4.0): 50 Specific Ways to Improve by Bill Wagner PDF

By Bill Wagner

I've got either variants of "Effective C#". The older, first variation didn't have lambda expressions, LINQ, or generics (though it hinted at generics in the direction of the end). within the moment variation, counsel (called "Items") that experience on account that fallen out of form are weeded out and are changed with clean strategies from .NET 2.0, via 4.0.

The goods are written in a truly transparent demeanour. many of the figures are illustrative of the suggestions. many of the photographs should not particularly as transparent as they can be (.NET's rubbish Collector stands out in my brain - invoice! learn a few Tufte! :) yet for the main half, every one merchandise gave an organization realizing. i'll learn the 1st and final paragraph of every merchandise to get a transparent bird's eye rationalization. Later, i'd pore over the main points with a highlighter and are available away enlightened.

This booklet has a sister - "More potent C#". This used to be published sooner than "Effective C# - moment Edition". I personal that replicate too, and it is dog-eared by way of now. the 2 books pass jointly like peas and carrots, although "More potent C#" touches on extra complex .NET 3.0 innovations. "More powerful C#"'s remedy of "yield return", dependency injection, and composition within the 3rd bankruptcy by myself are inspiring.

If you actually need to head all out, i might suggest getting "C# intensive" by means of John Skeet. there is a new version popping out in the summertime of 2010. Skeet's e-book will deliver the reader on top of things at the developments of C# in .NET 3.0 (and quickly 4.0) with no giving them any particular assistance. The "Effective C#" sequence will supply the reader particular information with no bringing anyone as much as speed.

Also, the writer is a funky man. I emailed him again in 2009 with questions on the 1st variation and he introduced me on top of things by means of responding on his web publication. you're inspired to offer him feedback.

I ponder "Effective C#" as one of many first books I achieve while i would like to sweep up on my ability set.

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Extra resources for Effective C# (Covers C# 4.0): 50 Specific Ways to Improve Your C#

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GetHashCode(); The first rule says that two objects that are equal (as defined by operator==()) must have the same hash code. This rule is followed for value types under most conditions, but you can break it, just as you could with for reference types. operator==() compares the first field in the struct, along with every other field. That satisfies rule 1. As long as any override that you define for operator== uses the first field, it will work. Any struct whose first field does not participate in the equality of the type violates this rule, breaking GetHashCode().

In the Customer example, that’s the name: 30 ❘ Chapter 1 C# Language Idioms public override string ToString() { return Name; } If you don’t follow any of the other recommendations in this item, follow that exercise for all the types you define. It will save everyone time immediately. ToString() method, objects of this class can be more easily added to WPF controls, Silverlight controls, Web Form controls, or printed output. ToString() to display objects in any of the controls: combo boxes, list boxes, text boxes, and other controls.

If the value of the first field can change, so can the hash code. That breaks the rules. Yes, GetHashCode() is broken for any struct that you create when the first field can be modified during the lifetime of the object. It’s yet another reason why immutable value types are your best bet (see Item 20). The third rule depends on the type of the first field and how it is used. If the first field generates a random distribution across all integers, and the first field is distributed across all values of the struct, then the struct generates an even distribution as well.

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