By Vincent Varallo
This ebook presents a step by step advisor for constructing an ASP.NET 3.5 program utilizing the newest positive aspects in visible Studio 2008. the matter layout answer sequence by means of Wrox is exclusive since it describes a wide case examine and builds a whole answer bankruptcy by way of bankruptcy for every incremental step. This e-book makes use of a large choice of recent positive factors in visible Studio 2008, explains each one intimately, and produces an answer so that you can use as a kick off point on your personal applications.If you're accountable for designing or constructing enterprise-wide purposes, departmental functions, portals, or any line of commercial program, then this e-book is for you. Many functions have the same set of gains, and this publication builds an software with the most universal positive aspects of company purposes. Let’s face it: each software has an identical normal set of beneficial properties, yet carried out otherwise. A database sits within the again finish and also you, because the developer, are liable for permitting clients so as to add, replace, decide upon, and delete files. If merely it have been that straightforward, no?The genuine improvement paintings starts off should you sit down with clients and take a look at to appreciate the company procedure and why they want a brand new or enhanced method within the first position. loads of businesses have departments that use Excel and entry wizards to create small platforms that at last turn into a lifeline for a few a part of the company. frequently whatever undesirable occurs end result of the nature of the device they're utilizing. Senior-level administration is named in, venture managers are employed, programmers are shriveled, and the venture administration place of work (PMO) is named to avoid wasting the realm. abruptly this loosely outlined strategy is excessive precedence and folks wish documented normal working techniques, audit studies, extra productiveness, much less humans, and naturally a method which could do all of it, that is the place you come back in. when you consider it, it’s a good looking daunting activity. You’re anticipated to turn into a professional in somebody else’s company procedure, flaws and all, and create a process that the corporate will depend upon because the spine for his or her life. okay, perhaps I’m exaggerating a bit bit, but if you go searching for that elevate you should word it that way.This booklet provides you with the instruments essential to construct a framework that may be prolonged to create an answer to unravel your company’s difficulties. The layout development makes use of the conventional 3 layers, the consumer interface (UI), the company common sense layer (BLL), and the knowledge entry layer (DAL), but in addition builds the sessions in each one layer that encapsulate universal enterprise ideas corresponding to role-based protection, workflow, reporting, dynamic menus, facts access, dynamic querying, notifications, exception dealing with, and auditing. because the e-book courses you thru the total resolution, each one enterprise requirement is punctiliously tested and a few of the most recent improvements in ASP.NET 3.5 and visible Studio 2008 are used to enforce them in a reusable framework.Enterprise functions tend to be advanced, and the groups that construct company functions are available in all styles and sizes. a number of the roles comprise a venture sponsor, a undertaking supervisor, company analysts, an architect, UI builders, middle-tier builders, database builders, and, if you’re rather fortunate, testers. only a facet word: clients are usually not testers. when you ever have the excitement of operating with specialist testers, you’ll detect how very important they're within the method, and the way they honestly are “quality” coverage engineers. regrettably, loads of businesses aren’t keen to take a position in specialist testers, so the clients and/or builders prove assuming that function. This booklet is especially concerned about the architect and builders, yet testers may perhaps locate it helpful to boot to aid them comprehend the plumbing that is going into constructing and architecting an company application.This ebook is for the intermediate to senior point developer or approach architect. it might be important when you've got event with visible Studio, the .NET Framework, ASP.NET, and C# simply because that's what the samples are written in, however the layout development should be utilized in any language. The e-book is concentrated on firm purposes, however the development can be used for any kind of software that has an internet entrance finish and connects to a database. the appliance framework inbuilt this booklet presents a origin that may be prolonged to satisfy the categorical company wishes of your organization.The pattern software during this booklet is equipped utilizing visible Studio 2008, ASP.NET 3.5, C#, and SQL Server 2005. each one bankruptcy is going into nice element, with lots of code samples, and makes use of the various new good points in visible Studio 2008 and the language improvements within the .NET Framework 3.5. the answer comprises examples for applied sciences similar to LINQ to SQL, grasp pages, customized controls, GridViews, enterprise gadgets, facts gadgets, and Crystal stories. a few of the language improvements mentioned contain LINQ, extension equipment, partial equipment, automated homes, nameless varieties, lambda expressions, and item initializers.Of direction, I discover that the code is what such a lot builders have an interest in, and every bankruptcy presents quite a few examples.The challenge layout answer sequence is simply that. every one bankruptcy has 3 sections with an outline of the matter to be addressed, the layout issues for selecting an answer for the matter, and the answer that finally addresses the matter. the answer contains the majority of the code. each one bankruptcy builds upon the former bankruptcy, and it's endorsed that you simply learn them so as. the bottom periods which are defined within the first few chapters are severe to an knowing of the remainder of the e-book. Later chapters construct upon the bottom periods and expand their performance in all 3 layers of the applying.
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Additional info for ASP.NET 3.5 Enterprise Application Development with Visual Studio 2008: Problem Design Solution
Making people think is a good thing. indd 22 12/18/08 9:05:35 AM Chapter 2: The Data Access Layer LINQ to SQL Now that I’ve reviewed what many people may already know about a data access layer, I’m ready to reveal one of the best new features in Visual Studio 2008, one that could revolutionize the way you write your next DAL: LINQ to SQL. NET objects, XML, and a SQL Server database. LINQ stands for Language Integrated Query. It is a uniform programming model for implementing any kind of data access.
The two user fields refer to the ENTUserAccount table, so for this table it is self-referencing. I use this pattern in all my applications, as it is helpful when users ask about data issues. This doesn’t serve as a complete audit trail, but it does help. The pattern for the full audit trail is discussed in Chapter 12. indd 23 12/18/08 9:05:35 AM Chapter 2: The Data Access Layer The UpdateDate field can also be used for concurrency. The other fields in the table are specific to the role-based security pattern, so I won’t explain them here.
A disadvantage of scalar values it that they don’t make it easy to represent sets of data, so these have the reverse issue that DataReaders have: You can get data in but it is difficult to get the data out. There is also tight coupling because the method signatures contain all the fields that are used by a method. If you add a new field, you need to change the method signatures. This could be good or bad depending on how you look at it. If you add a field, you have to change all the code that called that method to pass the field in, but that makes people think about what they should do with that field now that it exists.
ASP.NET 3.5 Enterprise Application Development with Visual Studio 2008: Problem Design Solution by Vincent Varallo