By Vincent Varallo
This booklet presents a step by step advisor for constructing an ASP.NET 3.5 software utilizing the most recent good points in visible Studio 2008. the matter layout answer sequence via 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 booklet makes use of a large choice of recent gains in visible Studio 2008, explains every one intimately, and produces an answer for you to use as a kick off point to your personal functions.
If you're liable for designing or constructing enterprise-wide purposes, departmental purposes, portals, or any line of commercial software, then this ebook is for you. Many functions have an analogous set of good points, and this ebook builds an program with one of the most universal beneficial properties of company functions. Let’s face it: each software has an analogous common set of positive factors, yet carried out differently. A database sits within the again finish and also you, because the developer, are liable for permitting clients so as to add, replace, decide on, and delete files. If in basic terms it have been that easy, no?
The genuine improvement paintings begins in case you take a seat with clients and take a look at to appreciate the enterprise approach and why they wish a brand new or more suitable process within the first position. loads of businesses have departments that use Excel and entry wizards to create small structures that finally develop into a lifeline for a few a part of the company. often whatever undesirable occurs as a result of nature of the device they're utilizing. Senior-level administration is termed in, undertaking managers are employed, programmers are shriveled, and the venture administration workplace (PMO) is named to avoid wasting the realm. without notice this loosely outlined technique is excessive precedence and folks wish documented common working strategies, audit studies, extra productiveness, much less humans, and naturally a procedure which may do all of it, that is the place you return in. when you consider it, it’s a beautiful daunting activity. You’re anticipated to turn into knowledgeable in somebody else’s enterprise approach, flaws and all, and create a approach that the corporate will depend on because the spine for his or her lifestyles. okay, probably I’m exaggerating somewhat bit, but if you go searching for that increase you want to word it that way.
This ebook 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 trend makes use of the traditional 3 layers, the person 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 company ideas comparable to role-based defense, workflow, reporting, dynamic menus, info access, dynamic querying, notifications, exception dealing with, and auditing. because the publication publications you thru the entire answer, each one enterprise requirement is carefully 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 purposes are usually advanced, and the groups that construct firm functions are available in all sizes and styles. the various roles comprise a undertaking sponsor, a undertaking supervisor, company analysts, an architect, UI builders, middle-tier builders, database builders, and, if you’re rather fortunate, testers. only a aspect observe: clients will not be testers. in case you ever have the excitement of operating with expert testers, you’ll become aware of how very important they're within the approach, and the way they honestly are “quality” insurance engineers. regrettably, loads of businesses aren’t prepared to speculate in specialist testers, so the clients and/or builders turn out assuming that function. This ebook is principally inquisitive about the architect and builders, yet testers may possibly locate it invaluable besides to assist them comprehend the plumbing that is going into constructing and architecting an firm application.
This e-book is for the intermediate to senior point developer or approach architect. it'd be invaluable 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 trend may be utilized in any language. The publication is targeted on firm functions, however the development can be used for any form of program that has an online entrance finish and connects to a database. the appliance framework in-built this ebook presents a origin that may be prolonged to satisfy the explicit company wishes of your organization.
The pattern program during this ebook is outfitted utilizing visible Studio 2008, ASP.NET 3.5, C#, and SQL Server 2005. each one bankruptcy is going into nice aspect, with lots of code samples, and makes use of many of the new good points in visible Studio 2008 and the language improvements within the .NET Framework 3.5. the answer contains examples for applied sciences reminiscent of LINQ to SQL, grasp pages, customized controls,
GridViews, enterprise gadgets, information items, and Crystal studies. many of the language improvements mentioned comprise LINQ, extension tools, partial tools, computerized homes, nameless varieties, lambda expressions, and item initializers.
Of path, I observe that the code is what so much builders have an interest in, and every bankruptcy presents a variety of examples.
The challenge layout resolution 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 eventually addresses the matter. the answer comprises the majority of the code. every one bankruptcy builds upon the former bankruptcy, and it is suggested that you just 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 ebook. Later chapters construct upon the bottom periods and expand their performance in all 3 layers of the application.
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Extra info for ASP.NET 3.5 enterprise application development with Visual studio 2008 : problem, design, solution
Second, we are no longer returning the ID of the newly added record. If you change the stored procedure to return Scope_Identity(), then the ENTUserAccountInsert method that takes all the parameters will return the ID of the newly added record. The problem is that it doesn’t automatically set this to the ENTUserAccountId property of the entity object. We’ll take care of this issue later during the discussion of the design pattern for the DAL classes. 35 Chapter 2: The Data Access Layer Updating a Record with a Stored Procedure Updating a record with a stored procedure is very similar to adding a record with a stored procedure: 1.
Drag and drop the ENTUserAccount table from the Server Explorer onto the left side of the design surface. If you are using SQL Authentication, you will get a message about the connection string containing credentials with a clear-text password and not using integrated security. Click Yes to the message. If you use Windows Authentication, the message does not appear. 25 Chapter 2: The Data Access Layer The table and all the fields should appear on the design surface (see Figure 2-4). Figure 2-4 Visual Studio created an entity class for you that mimics the ENTUserAccount table.
Create an object model that hides the complexity of the database from the consumer of the object. ❑ Represent single business objects and lists of business objects. ❑ Communicate validation errors to the consumer. ❑ Ensure that data is persisted as a whole and cancelled if any part of the whole fails. Chapter 3: Designing the Business Logic Layer Design The role of the BLL is to model your classes according to the business rules and processes, not necessarily the tables in the database. There is often a one-to-one relationship between a business object and a table, but the flexibility needs to be present to break from the table design and represent relationships between objects other than primary/foreign key relationships.