Read e-book online Developer's Guide to Microsoft Enterprise Library, C# PDF


By Alex Homer

Welcome to the period of software program reuse! Microsoft firm Library is helping speed up improvement by means of supplying reusable elements and suggestions on confirmed practices. in case you construct functions that run at the Microsoft .NET Framework, whether or not they are enterprise-level company purposes or perhaps particularly modest home windows® kinds, home windows Presentation beginning (WPF), home windows communique starting place (WCF), or ASP.NET purposes, you could reap the benefits of utilizing company Library. This consultant enables you to speedy grab what firm Library can do for you, offers examples, and makes it more uncomplicated so that you can begin experimenting with company Library. firm Library is made of a sequence of program blocks, every one aimed toward coping with particular cross-cutting matters. The advisor will stroll you thru the commonest utilization situations for every of the useful program blocks, including:Improving functionality by using a neighborhood in-memory or remoted garage cache. Calling into your database kept approaches and handling the consequences uncovered as a series of gadgets for buyer part querying. Incorporating cryptography mechanisms to guard your facts. Designing and enforcing a constant technique for coping with exceptions that happen in quite a few architectural layers of your software. enforcing process logging in the course of the wide array of out-of-the field logging sinks or your customized supplier. appearing based and easy-to-maintain validation utilizing attributes and ideas units. The advisor additionally demonstrates quite a few methods of configuring company Library blocks. enable company Library do the heavy lifting for you and spend extra time concentrating on what you are promoting common sense and no more on program plumbing. “You are retaining on your arms a ebook that may make your existence as an firm developer a lot easier.” Scott Guthrie company Vice-President, Microsoft .NET Developer Platform

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And the example you’ve seen for using dependency injection only scratches the surface of what you can do using the more sophisticated approach. For example, if you have a reference to the container, you can: • Manage the lifetime of your custom types. They can be resolved by the container as singletons, with a lifetime based on the lifetime of the object that created them, or as a new instance per execution thread. • Implement patterns such as plug-in and service locator by mapping interfaces and abstract types to concrete implementations of your custom types.

Returns data selected by a stored procedure as a sequence of objects for client-side querying. LoadDataSet. Populates an existing DataSet. UpdateDataSet. Updates the database using an existing DataSet. ExecuteScalar. Executes the command and returns a single value. ExecuteSqlStringAccessor. Returns data selected by a SQL statement as a sequence of objects for client-side querying. Retrieving XML data (SQL Server only). ExecuteXmlReader. Returns data as a series of XML elements exposed through an XmlReader.

Returns the value of the specified parameter as an Object type. SetParameterValue. Sets the value of the specified parameter. Working with transactions. CreateConnection. Creates and returns a connection for the current database that allows you to initiate and manage a transaction over the connection. You can see from this table that the Data Access block supports almost all of the common scenarios that you will encounter when working with relational databases. Each data access method also has multiple overloads, designed to simplify usage and integrate—when necessary—with existing data transactions.

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