Click or drag to resize

QueryBuilderTDocumentExistsTMember Method

Tests that an element of that name does or does not exist (see $exists).

Namespace:  MongoDB.Driver.Builders
Assembly:  MongoDB.Driver.Legacy (in MongoDB.Driver.Legacy.dll) Version: 2.21.0+5a9c3311e158910b88195f290e6d4b1b2715d2b2
Syntax
public IMongoQuery Exists<TMember>(
	Expression<Func<TDocument, TMember>> memberExpression
)

Parameters

memberExpression
Type: System.Linq.ExpressionsExpressionFuncTDocument, TMember
The member expression representing the element to test.

Type Parameters

TMember
The member type.

Return Value

Type: IMongoQuery
An IMongoQuery.
See Also