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MongoCollectionDistinct Method (String, IMongoQuery)
Returns the distinct values for a given field for documents that match a query.

Namespace: MongoDB.Driver
Assembly: MongoDB.Driver.Legacy (in MongoDB.Driver.Legacy.dll) Version: 2.3.0
Syntax
public virtual IEnumerable<BsonValue> Distinct(
	string key,
	IMongoQuery query
)

Parameters

key
Type: SystemString
The key of the field.
query
Type: MongoDB.DriverIMongoQuery
The query (usually a QueryDocument or constructed using the Query builder).

Return Value

Type: IEnumerableBsonValue
The distint values of the field.
See Also