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

A query operator that determines whether all elements selected so far satisfy a condition.

Namespace/Module Path: Microsoft.FSharp.Linq

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

// Signature:
member this.All : QuerySource<'T,'Q> * ('T -> bool) -> bool

// Usage:
queryBuilder.All (source, predicate)

Parameters

• source
  Type: QuerySource<'T,'Q>

  The input query.

• predicate
  Type: 'T -> bool

  A Boolean function to test the elements.

Return Value

true if the provided Boolean function predicate evaluates to true for all elements selected so far.

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#)