By Troy Magennis
Your whole Example-Rich advisor to utilizing and increasing LINQ to things and PLINQ
Using LINQ to things, .NET builders can write queries over item collections with an identical deep performance that was to be had in basic terms with SQL and relational databases. Now, for the 1st time, builders have a accomplished and authoritative advisor to utilising LINQ to things in real-world software program. Microsoft MVP Troy Magennis introduces cutting-edge innovations for operating with in-memory collections extra elegantly and efficiently—and writing code that's awfully strong, strong, and versatile.
Drawing on his unsurpassed adventure coding software program utilizing LINQ and webhosting the preferred HookedOnLINQ.com website, Magennis provides well timed, reasonable strategies to a large spectrum of improvement demanding situations, similar to combining info from a number of resources, and attaining optimum functionality with tremendous huge units of knowledge. You’ll start with short quick-starts that stroll you thru LINQ to things’ key good points and question syntax. subsequent, you’ll drill all the way down to distinct thoughts for using and increasing those good points with C# 4.0 and C# 3.0—including code examples that mirror the realities of creation development.
- Writing easy LINQ queries with C#: filtering, projecting, and sorting information from in-memory collections
- Mastering complicated recommendations for grouping and becoming a member of info and knowing the functionality implications of every technique
- Taking complete benefit of LINQ’s usual question operators
- Creating customized question operators that stick to most sensible practices for coding styles and blunder handling
- Writing extra fluent, readable LINQ queries with C# 4.0’s language improvements, together with the hot dynamic features
- Combining LINQ with COM-Interop to entry facts resources corresponding to Microsoft Excel
- Using Parallel LINQ to things (PLINQ) to optimize queries for multi-core processors, and the way to construct customized parallel question operators
- Integrating the easiest LINQ to things styles into your daily coding
Read or Download LINQ to Objects Using C# 4.0: Using and Extending LINQ to Objects and Parallel LINQ (PLINQ) (Addison-Wesley Microsoft Technology Series) PDF
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Some of the reports of this booklet point out the historical past of the reviewer.
If you're contemplating studying C from this e-book, I recommend you think about
carefully the stories via people with a heritage just about yours. Pay
less realization to these with a considerably diverse historical past. But.
read this evaluation simply because i'll try and supply a number of assorted perspectives.
I earned my dwelling from 1960 to my contemporary retirement programming electronic
computers of many types, in lots of languages, and for plenty of applications,
including approximately 15 years utilizing C. I used this article in a simply comprehensive C
course as a part of my "mind rot hold up application. " I knew a few issues about
C , yet had now not used it.
The teacher has taught the path for a few years, and that i think has used
the comparable textual content for numerous years. it sort of feels to have handed the attempt of time
for that surroundings. the second one sentence of the preface states "No previous
programming event is needed. " the college calls for both a two
semester series of C programming, or a one semester C direction for those
with past programming adventure. the trainer stated these without
a stable history in C will be misplaced. i don't comprehend something approximately the
other scholars within the classification, yet nearly part have been passed by the ultimate night.
One of the great things approximately this e-book is the big variety of complete
sample courses. those illustrate and exhibit beneficial properties of the language.
You do not also have to style them in; you will get them from the publisher's
web website. one of many undesirable issues approximately this publication is the big quantity of
complete pattern courses. usually the part of curiosity is 2 or three
lines out of a web page or . The ebook is far greater than it may well be.
There are a couple of questions within the textual content, yet no longer many. There are not any problem
sets or assessment inquiries to try out your knowing. on the finish of a few
chapters there's a advice to study convinced subject matters. There are frequent
suggestions to play with a application, make adjustments and comprehend what
Almost all of the supplied courses are entire in a single dossier. genuine C
applications tend to be dossier in depth, much more so than applications
written in C. Even toy homework difficulties from my type frequently concerned
five or seven documents.
The ebook is remarkably entire for a piece aimed toward rookies. There are
omissions, yet such a lot are minor. a few reviewers, and my teacher, said
the assurance of member initialization lists is very weak.
The ordinary Template Library (STL) is likely one of the more moderen positive factors of the
language. it truly is coated within the longest bankruptcy of the e-book, forty six pages.
Other reviewers have complained that the assurance is scant. they're
right. it truly is scant. The bankruptcy is termed "Introducing the normal
Template Library. " The e-book explains some of the box sessions
and some of the operations you are able to do on them. the reasons are
at a degree just like the remainder of the booklet. it really is sufficient to get you
started. related operations on different box periods have related
names. There are numerous lists of functionality names with very short
descriptions. For an advent, it really is adequite.
My teacher acknowledged it's going to take greater than a semester to hide the
entire STL. i feel that may be a truly uninteresting classification. glance through
the STL now and then; possibly you will see anything that
seems priceless. Then examine the instantly worthy parts.
Here is a tip that I realized the challenging approach. The services indexed in
the ALGORITHMS part of the STL should not member services. You can
tell should you research the pattern software heavily adequate, however it is not
clear from the most text.
The preface offers you (the amateur) may be an comprehensive C
programmer for those who end the booklet. I disagree. you'll recognize a lot
about information of the language, however the booklet won't assist you design
a technique to an issue. no longer prompt for a novice.
If you may have a few event programming in a few language, the book
could be beneficial. learn it if you transform the issues from your
old textual content, utilizing C . caution: i am not a instructor; this can be simply my
The present version is the 3rd version. the various reports right here look to
be of an prior variation. The 3rd variation was once released in 2003. That is
long in the past for plenty of machine books, however the C general has no longer replaced since
1998, apart from a few corrections in 2003. lots of the alterations for the subsequent
version of the traditional are anticipated to use in basic terms to the library.
Your entire Example-Rich advisor to utilizing and increasing LINQ to things and PLINQ utilizing LINQ to things, . web builders can write queries over item collections with a similar deep performance that was on hand in simple terms with SQL and relational databases. Now, for the 1st time, builders have a accomplished and authoritative advisor to making use of LINQ to things in real-world software program.
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Additional resources for LINQ to Objects Using C# 4.0: Using and Extending LINQ to Objects and Parallel LINQ (PLINQ) (Addison-Wesley Microsoft Technology Series)
N => n < 5 (int n) => n < 5 n => n % 2 == 1 (n, index) => n < index (explicit parameter typing) (true for odd numbers) (multiple parameters) From the Library of Wow! eBook 28 Chapter 2 Introducing LINQ to Objects Lambda expressions will become second nature when you begin writing LINQ code; for now, just get comfortable with the fact that a lambda expression is simply a nicer way of passing code to another function to execute. Listing 2-6 demonstrates some before and after shots of inlining code as a delegate.
Code will be simpler, often faster, and easier to read. Net languages are being improved to support tomorrow’s coding challenges. The next chapter looks more closely at how to construct basic LINQ queries in C#, a prerequisite to understanding the more advanced features covered in later chapters. References 1. Box, Don and Hejlsberg, Anders. 2006. LINQ Project Overview, May. doc. From the Library of Wow! eBook This page intentionally left blank From the Library of Wow! eBook C H A P T E R 2 INTRODUCING LINQ TO OBJECTS Goals of this chapter: ■ ■ ■ Deﬁne the capabilities of LINQ to Objects.
To understand the basic query syntax, Listings 2-8 and 2-9 demonstrate simple LINQ to Object queries, with their respective console output shown in Outputs 2-3 and 2-4. From the Library of Wow! WriteLine(result); Output 2-4 27 LINQ to Objects extends any type that inherits from IEnumerable
LINQ to Objects Using C# 4.0: Using and Extending LINQ to Objects and Parallel LINQ (PLINQ) (Addison-Wesley Microsoft Technology Series) by Troy Magennis