ISetWindowFieldsPartitionExtensions.Shift<TInput, TValue> Method (ISetWindowFieldsPartition<TInput>, Func<TInput, TValue>, Int32)

Returns the value from an expression applied to a document in a specified position relative to the current document.

Namespace: MongoDB.Driver.Linq
Assembly: MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.21.0+5a9c3311e158910b88195f290e6d4b1b2715d2b2

Syntax

Copy

public static TValue Shift<TInput, TValue>(
	this ISetWindowFieldsPartition<TInput> partition,
	Func<TInput, TValue> selector,
	int by
)

<ExtensionAttribute>
Public Shared Function Shift(Of TInput, TValue) ( 
	partition As ISetWindowFieldsPartition(Of TInput),
	selector As Func(Of TInput, TValue),
	by As Integer
) As TValue

[<ExtensionAttribute>]
static member Shift : 
        partition : ISetWindowFieldsPartition<'TInput> * 
        selector : Func<'TInput, 'TValue> * 
        by : int -> 'TValue

Parameters

partition: Type: MongoDB.Driver.ISetWindowFieldsPartition<TInput>
The partition.
selector: Type: System.Func<TInput, TValue>
The selector that selects a value from the input document.
by: Type: System.Int32
The relative position of the document to evaluate the selector on to shift a value to this document.

Type Parameters

TInput: The type of the input documents in the partition.
TValue: The type of the selected values.

Return Value

Type: TValue
The value from an expression applied to a document in a specified position relative to the current document.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type ISetWindowFieldsPartition<TInput>. 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

ISetWindowFieldsPartitionExtensions Class

Shift Overload

MongoDB.Driver.Linq Namespace