QueryBuilder.SortByNullableDescending<'T,'Q,'Key> Method (F#)

A query operator that sorts the elements selected so far in descending order by the given nullable sorting key.

Namespace/Module Path: Microsoft.FSharp.Linq

Assembly: FSharp.Core (in FSharp.Core.dll)

// Signature:
member this.SortByNullableDescending : QuerySource<'T,'Q> * ('T -> Nullable<'Key>) -> QuerySource<'T,'Q> when 'Key : (IComparable) and 'Key : (new : unit ->  'Key) and 'Key : struct and 'Key :> ValueType

// Usage:
queryBuilder.SortByNullableDescending (source, keySelector)

Parameters

• source
  Type: QuerySource<'T,'Q>

  The input query.

• keySelector
  Type: 'T -> Nullable<'Key>

  Specifies the field to sort by.

Return Value

The sorted query.

Remarks

For more information and examples, see Query Expressions (F#).

Platforms

Windows 8, Windows 7, Windows Server 2012, Windows Server 2008 R2

Version Information

F# Core Library Versions

Supported in: 4.0, Portable

See Also

Reference

Linq.QueryBuilder Class (F#)

Microsoft.FSharp.Linq Namespace (F#)

Query Expressions (F#)