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Here we apply an extra condition that we only want to see orders valued over a hundred pounds.After the "orderby" keyword, we write the expression that the objects will be sorted on. Notice this is different from SQL, where there are two words: "ORDER BY".With that done, we'll use Linq to get the costs of all orders for customer 84. First, we use collection and object initializers to create a list of Order objects that we can run our query over. We declare the variable Found and request that its type be inferred for us by using the "var" keyword. You can read it a little bit like a "foreach": it takes a collection of some kind after the "in" keyword and makes what is to the left of the "in" keyword refer to a single element of the collection. This introduces a filter, allowing us to pick only some of the objects from the Orders collection.The "from" made the identifier "o" refer to a single item from the collection, and we write the condition in terms of this.The result is produced by using the clause will cause the elements in the returned sequence to be sorted according to the default comparer for the type being sorted.For example, the following query can be extended to sort the results based on the Join operations create associations between sequences that are not explicitly modeled in the data sources.As well as primitive types (such as int), you can instantiate any object you like here.

Conditions can be more complex too, and are built up in the usual C# way, just as you would do in an "if" statement.If you type this query into the IDE yourself, you will notice that it has worked out that "o" is an Order and intellisense works as expected.This comes at the end of the query and is a little like a "return" statement: it states what we want to appear in the collection holding the results of the query.I'm really not sure that that is the case here but perhaps that is just because we're not as used to it yet.Let's look at the query and dissect it line by line.