Class QueryableExtensions

Namespace: Cratis.Arc.Queries

Assembly: Cratis.Arc.Core.dll

Provides a set of methods for working with IQueryable.

public static class QueryableExtensions

Inheritance: object

QueryableExtensions

Inherited Members: object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Remarks

The element type of a non-generic IQueryable is only known at runtime. Each operation is therefore performed by a generic method closed over the element type, which calls the typed Queryable operator directly. The generic methods are looked up by name on this type, so the trimmer can see which methods are needed.

Methods

Count(IQueryable)

Returns the number of elements in a sequence.

public static int Count(this IQueryable queryable)

Parameters

queryable IQueryable: The IQueryable to adorn.

Returns

int: The number of elements in the input sequence.

OrderBy(IQueryable, string, SortDirection)

Sorts the elements of a sequence in ascending or descending order according to a key.

public static IQueryable OrderBy(this IQueryable queryable, string field, SortDirection direction = SortDirection.Ascending)

Parameters

queryable IQueryable: The IQueryable to adorn.
field string: The name of the field to order on.
direction SortDirection: Optional direction of sort. Defaults to ascending.

Returns

IQueryable: An IQueryable for continuation.

OrderByDescending(IQueryable, string)

Sorts the elements of a sequence in descending order according to a key.

public static IQueryable OrderByDescending(this IQueryable queryable, string field)

Parameters

queryable IQueryable: The IQueryable to adorn.
field string: The name of the field to order on.

Returns

IQueryable: An IQueryable for continuation.

Skip(IQueryable, int)

Bypasses a specified number of elements in a sequence and then returns the remaining elements.

public static IQueryable Skip(this IQueryable queryable, int count)

Parameters

queryable IQueryable: An IQueryable to adorn.
count int: The number of elements to skip before returning the remaining elements.

Returns

IQueryable: An IQueryable for continuation.

Take(IQueryable, int)

Returns a specified number of contiguous elements from the start of a sequence.

public static IQueryable Take(this IQueryable queryable, int count)

Parameters

queryable IQueryable: The IQueryable to adorn.
count int: The number of elements to return.

Returns

IQueryable: An IQueryable for continuation.