LINQ is Microsoft? S first attempt to define a universal query language for a set of diverse collections of in-memory generic object, the entity to survive in a relational database table, and the elements and attributes of XML documents or fragments, and various other data types, such as RSS and Atom syndication feeds. Microsoft invested millions of dollars in his Anders Hejlsberg and the C # design and development groups to add new features to C # 3.0? Such as lambda expressions, anonymous types, and specific counseling methods to support the LINQ Standard Query Operators (SQOs) and the query expression as? part of the language itself. Additional appropriate follow VB 9.0 C # team lead, but VB's implementation of LINQ to XML offers a tremendous new addition to the language:? Literal XML. VB? S LINQ to XML implementation, including literal XML, which treats well-formed XML document or fragment as part of the VB language, rather than requiring translation of element and attribute names and values of the string into XML DOM nodes and values. The first half of this book covers LINQ Standard Query Operators (SQOs) and the actual implementation of LINQ for querying collections that implement the generic IEnumerable, IQueryable, or both interfaces. The second half is devoted to ADO.NET Entity Framework, National Data Model, SQL Agency (eSQL) and LINQ to Entities. This book is intended for experienced developers NET. using C # or VB that want to get the maximum benefit from the ability to query-processing implementation of LINQ in Visual Studio 2008 LINQ to Objects?, LINQ to SQL, LINQ to datasets, and LINQ to XML and object / relational mapping (O / RM) VS feature 2008 SP1? s Entity Framework / Data Model Agency and LINQ to Entities and? increasing the number of open-source implementation LINQ by third party developers. Proficiency with VS 2005, NET 2.0, C # 2.0,. Or VB 8.0 will help your initial understanding of the book? SC # 3.0 or VB 9.0 sample code but is not it? Ta prerequisite. All code examples in this book chapter s and? sample project has a version of C # and VB unless they? re-written in T-SQL, or JavaScript. Professional ADO.NET 3.5: LINQ and Entity Framework concentrates on programming and System.Linq.Expressions System.Linq namespace to LINQ to Objects, LINQ to SQL System.Data.Linq for, System.Data.Linq to LINQ to DataSet, System . Xml.Linq to LINQ to XML, and System.Data.Entity and System.Web.Entity for EF? s SQL Agency. using a simple C # and VB code examples to demonstrate LINQ to Objects to query in-memory objects and the pooling of data with LINQ populated generic List collection, object / relational mapping (O / RM) with LINQ to SQL, LINQ to join DataTables with datasets, create EntitySets with LINQ to Entities, query and manipulate XML InfoSets with LINQ to XML, and XML query for the document is typed with the LINQ to XSD. begins with namespaces and C # and VB language extensions to support LINQ, LINQ Standard Query Operators (SQOs), the expression tree and prepared questions, and a preview of domain-specific implementation. C # and VB sample projects show objects, arrays, and collection initializers, extension methods, anonymous types, predicate, lambda expressions, and simple query expression. Implementing LINQ? Query Expressions with LINQ to Objects,? VS 2008 SP1 includes C # and VB versions of LINQ Project Sample Query Explorer, but the two Explorers don? T using a collection of the real world as a source of data. It discusses in-memory LINQ objects generator (LIMOG) utility program is written C # 3.0 or VB 9.0 object class declaration for a business representative who is more complex than those used by LINQ Project Sample Query Explorers. Examples C # and VB query with these business objects as a data source that is more expressive than those using an array of integers or some last name. introduced a LINQ query against the object graph with entities that have (associations) entities. It also explains how to edit files *. dbml mapping in the Designer or XML editor, instantiate the DataContext object, and use LINQ to SQL as the Data Access Layer (DAL) with T-SQL query or stored procedure. DataTables query with LINQ to dataset,? This shows that the LINQ to XML has the ability to query and navigate the same or exceeded the XPath 1.0 and XQuery 2.0. You learn how to use VB 9.0? S literal XML to XML document construction, use GroupJoin () to generate a hierarchical document, and work with XML namespaces in C # and VB. describe Microsoft? s Parallel LINQ (also called PLINQ) to take advantage of multiple CPU cores query in LINQ to Objects, LINQ to REST to translate the LINQ query to Representation State Transfer URL that determines the demand for Web servicesHTML GET, POST, PUT, and DELETE methods, and Bart De Smet? s LINQ to Active Directory and LINQ to SharePoint implementation of a third party. Two C #, and VB sample projects ekspansid on query eSQL and Service Object code samples.