QueryBuilder.ThenByNullableDescending<'T,'Q,'Key> Method (F#)
A query operator that performs a subsequent ordering of the elements selected so far in descending order by the given nullable sorting key. This operator may only be used immediately after a sortBy, sortByDescending, thenBy or thenByDescending, or their nullable variants.
Namespace/Module Path: Microsoft.FSharp.Linq
Assembly: FSharp.Core (in FSharp.Core.dll)
// Signature: member this.ThenByNullableDescending : 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.ThenByNullableDescending (source, keySelector)