This Wrox Blox demonstrates various LINQ to SQL techniques to use in upgrading the “Articles” portion of TheBeerHouse application. The first step is migrating. This Wrox Blox introduces you to Language Integrated Query (LINQ), application programming interface (API) and set of extensions to the Visual. NET questions has written for Wrox a short example Migrating to LINQ to SQL in TheBeerHouse and Website Programming.
A Windows form example uses Astoria’s. C and VB sample projects demonstrate object, array, and collection initializers, extension methods, anonymous types, predicates, lambda expressions, wrx simple query expressions.
Password Reminder Password Register. Paging is quite simple using LINQ, a basic method might be something like this: This book concentrates on hands-on development of practical Windows and Web applications that demonstrate C and VB programming techniques to bring you up to linqq on LINQ technologies.
You also discover how to take advantage of a shorthand method-call syntax that chains lambda expressions. All times are GMT Later chapters describe eSQL and these objects in greater detail.
Professional LINQ – Wrox
Basic familiarity with generics and other language features introduced by. May not place the Wrox Blox file on a network or any file sharing service for use by anyone other than yourself or allow anyone other than yourself to access it.
This is the forum to discuss the Wrox book ASP. You learn how to compile queries for improved performance, and create mock object wwrox for testing without the overhead of queries against relational persistence stores. Problem – Design – Solution.
The obvious wrpx might be: Doug Parsons, who many of you will know from these forums for all of his fantastic answers to many ASP. Any Wrox Blox you purchase from this site will come with certain restrictions that allow Wiley to protect the copyrights of its products.
March 21st, May not copy, redistribute, or modify any portion of the Wrox Blox contents in any way without prior permission from Wiley. October 1st, NET code samples are primarily written in Linqq. Any Wrox Blox you purchase from this site will come with certain restrictions that allow Wiley to protect the copyrights of its products.
You learn how to use VB 9. EST, Monday – Friday. Table of Contents PDF.
After you purchase and download this title, you:. After you purchase and download this title, you: If you have any issues related to Technical Support, please contact us at United States only or International 8 a. Need to download code? After you purchase and download this title, you: I shot Jim an email about getting a link to the source code posted so I will let you know when that happens. Page 1 of 6.
LINQ to SQL example for TheBeerHouse in Wrox Blox
Proficiency with VS wrix. Readers will become comfortable working with Entities Tablesnavigating Associations Relationshipsand working with stored procedures from a LINQ standpoint, throughout the implementation.
You can’t gain a feel for the behavior or performance of LINQ queries with “Hello World” projects that process arrays of a few integers or a few ljnq and last names. This begins with examples of aggregate operators, explains use of the Let temporary local variable operator, shows you how to use Group By with aggregate queries, conduct the equivalent of left outer joins, and take advantage of the Contains SQO to emulate SQL’s IN function. NET, the author uses C throughout this Wrox Blox, so readers should have at least an intermediate level of llnq with C.
Here’s Doug’s description of the content, and there’s a full table of contents for the 34 pages Wrox Blox on wdox page for it: It starts with a detailed description of the ObjectContext.
You are currently viewing the BOOK: As a guest, you can read any forum posting. Welcome to the p2p. Hi Jimi, Enjoy the article! Yes that is possible though you would probably want to use a LinqDataSource to achieve this as a bonus you could also set your gridview up to use paging, editing, etc with this control http: Sample C and VB queries with these business objects as data sources are more expressive than those using a arrays of a few integers or last names.
LINQ is Microsoft’s first attempt to define a universal query language for a diverse set of in-memory collections of generic objects, entities persisted in relational database tables, and element and attributes of XML documents or fragments, as well as a wide variety of other data types, such as RSS and Atom syndication feeds.