ProjectionDefinitionBuilderTSourceElemMatchTItem Method (ExpressionFuncTSource, IEnumerableTItem, FilterDefinitionTItem)

Creates a projection that filters the contents of an array.

Namespace: MongoDB.Driver
Assembly: MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.22.0+75246110ed1247226fcc7f8eb2c54ffab745693e

Syntax

Copy

public ProjectionDefinition<TSource> ElemMatch<TItem>(
	Expression<Func<TSource, IEnumerable<TItem>>> field,
	FilterDefinition<TItem> filter
)

Public Function ElemMatch(Of TItem) ( 
	field As Expression(Of Func(Of TSource, IEnumerable(Of TItem))),
	filter As FilterDefinition(Of TItem)
) As ProjectionDefinition(Of TSource)

member ElemMatch : 
        field : Expression<Func<'TSource, IEnumerable<'TItem>>> * 
        filter : FilterDefinition<'TItem> -> ProjectionDefinition<'TSource>

Parameters

field: Type: System.Linq.ExpressionsExpressionFuncTSource, IEnumerableTItem
The field.
filter: Type: MongoDB.DriverFilterDefinitionTItem
The filter.

Type Parameters

TItem: The type of the item.

Return Value

Type: ProjectionDefinitionTSource
An array filtering projection.

Reference

ProjectionDefinitionBuilderTSource Class

ElemMatch Overload

MongoDB.Driver Namespace