Overview

Convert methods change the type of objects.

methods

As* methods change the static type of the collection but do not enumerate it.
To* methods enumerate the collection and put the items into a different collection type.

Methods marked with * force query execution:

Methods	Description	Query expression
`AsEnumerable`	Returns the input typed as `IEnumerable<T>`	N/A
`AsQueryable`	Converts an `IEnumerable` to `IQueryable`	N/A
`Cast<T>`	Casts the elements of a collection to type `T`	`from <type> var in words`
`OfType`	Selects values depending on their ability to be cast to the specified type	N/A
*`ToArray`	Converts a collection to an array	N/A
*`ToDictionary`	Puts elements into a `Dictionary<TKey, TValue>` based on a key-selector function	N/A
*`ToList`	Converts a collection to a `List<T>`	N/A
*`ToLookup`	Puts elements into a `Lookup<TKey, TValue>` based on a key-selector function	N/A

`Cast<T>` example

In this example, cast a type to a subtype:

IEnumerable people = students;

var query = people
    .Cast<Student>()
    .Where(student => student.Year == GradeLevel.ThirdYear);

Overview

methods

Cast<T> example

`Cast<T>` example