Average(IEntityScalarQuery,IProjectionSelector,CancellationToken) Method

Computes the average of a sequence of numeric values that is obtained by invoking a projection function on each element of the input sequence. Pass in a System.Threading.CancellationToken to cancel operation.

Syntax

Visual Basic
C#

'Declaration
 
<ExtensionAttribute()>
Public Overloads Shared Function Average( _
   ByVal source As IEntityScalarQuery, _
   ByVal projectionSelector As IProjectionSelector, _
   ByVal cancellationToken As CancellationToken _
) As Task(Of Object)

'Usage
 
Dim source As IEntityScalarQuery
Dim projectionSelector As IProjectionSelector
Dim cancellationToken As CancellationToken
Dim value As Task(Of Object)
 
value = EntityScalarAsyncExtensions.Average(source, projectionSelector, cancellationToken)

[Extension()]
public static Task<object> Average( 
   IEntityScalarQuery source,
   IProjectionSelector projectionSelector,
   CancellationToken cancellationToken
)

Parameters

source
projectionSelector
cancellationToken

Example

public async void AsyncAverageWithPredicate() {
   var avgFreight = await _entityManager.OrderSummaries.AsScalarAsync().Average<OrderSummary, Nullable<Decimal>>(o => o.Freight);
 }

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

EntityScalarAsyncExtensions Class
EntityScalarAsyncExtensions Members
Overload List