NET to support query syntax and supported constructs directly in
the programming language. There are many benefits to this, including compile-time checking,
elimination of syntax errors, and type safety.
The new language constructs found in both the C# and Visual Basic .NET languages make a lot of the
LINQ functionality possible. Therefore, before this book really digs into the LINQ query language and
standard query operators, the rest of this chapter discusses these new language features to better help
you understand LINQ.
Query Expressions
Query expressions are the heart and soul of the LINQ technology. They are what describe the operations
on the data source. Chapter 3, ??????LINQ Queries,??™??™ tackles LINQ query expressions in great detail, so this
section provides an overview of query expressions so that you can understand the full breadth in the
next chapter.
Query expressions are the code that you write, using the standard query operators, to access, sort, and
filter data, regardless of where the data comes from. They are written using a declarative query syntax,
which was introduced in C# 3.
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