ISetWindowFieldsPartitionExtensionsShiftTInput, TValue Method (ISetWindowFieldsPartitionTInput, FuncTInput, 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: 2.20.0+ee01960089f28ea1b501690df5fc9f6318a70242

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.DriverISetWindowFieldsPartitionTInput
The partition.
selector: Type: SystemFuncTInput, TValue
The selector that selects a value from the input document.
by: Type: SystemInt32
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 ISetWindowFieldsPartitionTInput. 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