DryadLinqQueryable.LongCountAsQuery(TSource) Method (IQueryable(TSource), Expression(Func(TSource, Boolean)))

DryadLinqQueryableLongCountAsQueryTSource Method (IQueryableTSource, ExpressionFuncTSource, Boolean)

DryadLINQ documentation

Same as LongCountTSource(IQueryableTSource, ExpressionFuncTSource, Boolean), but returns an IQueryable<Int64> containing a single element.

Namespace: Microsoft.Research.DryadLinq
Assembly: Microsoft.Research.DryadLinq (in Microsoft.Research.DryadLinq.dll) Version: 0.2.1.0 (0.2.1.0)

Syntax

C++

Copy

public static IQueryable<long> LongCountAsQuery<TSource>(
	this IQueryable<TSource> source,
	Expression<Func<TSource, bool>> predicate
)

<ExtensionAttribute> 
Public Shared Function LongCountAsQuery(Of TSource) ( 
	source As IQueryable(Of TSource),
	predicate As Expression(Of Func(Of TSource, Boolean))
) As IQueryable(Of Long)

public:
[ExtensionAttribute]
generic<typename TSource>
static IQueryable<long long>^ LongCountAsQuery(
	IQueryable<TSource>^ source, 
	Expression<Func<TSource, bool>^>^ predicate
)

Parameters

source: Type: System.LinqIQueryableTSource
The input sequence
predicate: Type: System.Linq.ExpressionsExpressionFuncTSource, Boolean
A predicate to test each element for a condition

Type Parameters

TSource: The type of the elements of source

Return Value

Type: IQueryableInt64
The number of elements in the input sequence satisfying the predicate

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQueryableTSource. 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).

Reference

DryadLinqQueryable Class

LongCountAsQuery Overload

Microsoft.Research.DryadLinq Namespace