ProjectionDefinitionBuilderTSourceElemMatchTItem Method (ExpressionFuncTSource, IEnumerableTItem, ExpressionFuncTItem, Boolean) |
Creates a projection that filters the contents of an array.
Namespace:
MongoDB.Driver
Assembly:
MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.5.0+57.Branch.master.Sha.6a4e00a2d91090c65a9b11364b9ebfdb9c7da076
Syntax public ProjectionDefinition<TSource> ElemMatch<TItem>(
Expression<Func<TSource, IEnumerable<TItem>>> field,
Expression<Func<TItem, bool>> filter
)
Public Function ElemMatch(Of TItem) (
field As Expression(Of Func(Of TSource, IEnumerable(Of TItem))),
filter As Expression(Of Func(Of TItem, Boolean))
) As ProjectionDefinition(Of TSource)
member ElemMatch :
field : Expression<Func<'TSource, IEnumerable<'TItem>>> *
filter : Expression<Func<'TItem, bool>> -> ProjectionDefinition<'TSource>
Parameters
- field
- Type: System.Linq.ExpressionsExpressionFuncTSource, IEnumerableTItem
The field. - filter
- Type: System.Linq.ExpressionsExpressionFuncTItem, Boolean
The filter.
Type Parameters
- TItem
- The type of the item.
Return Value
Type:
ProjectionDefinitionTSource
An array filtering projection.
See Also