ParallelEnumerable::Max<TSource> Method (ParallelQuery<TSource>, Func<TSource, Nullable<Double>>)
Invokes in parallel a transform function on each element of a sequence and returns the maximum value.
Namespace: System.Linq
Assembly: System.Core (in System.Core.dll)
[ExtensionAttribute] public: generic<typename TSource> static Nullable<double> Max( ParallelQuery<TSource>^ source, Func<TSource, Nullable<double>>^ selector )
Type Parameters
- TSource
The type of elements of source.
Parameters
- source
- Type: System.Linq::ParallelQuery<TSource>
A sequence of values to determine the maximum value of.
- selector
- Type: System::Func<TSource, Nullable<Double>>
A transform function to apply to each element.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type ParallelQuery<TSource>. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).| Exception | Condition |
|---|---|
| OperationCanceledException | The query was canceled with the token passed in through WithCancellation. |
| ArgumentNullException | source or selector is a null reference (Nothing in Visual Basic). |
| AggregateException | One or more exceptions occurred during the evaluation of the query. |
| InvalidOperationException | source contains no elements. |
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
