| PipelineDefinitionBuilderBucketAutoTInput, TIntermediate, TValue Method (PipelineDefinitionTInput, TIntermediate, AggregateExpressionDefinitionTIntermediate, TValue, Int32, AggregateBucketAutoOptions) | 
 
            Appends a $bucketAuto stage to the pipeline.
            
 
    Namespace: 
   MongoDB.Driver
    Assembly:
   MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.12.2+a4a3888f4fb51bb518b1eb5002effc2d47f2ea6a
 Syntax
Syntaxpublic static PipelineDefinition<TInput, AggregateBucketAutoResult<TValue>> BucketAuto<TInput, TIntermediate, TValue>(
	this PipelineDefinition<TInput, TIntermediate> pipeline,
	AggregateExpressionDefinition<TIntermediate, TValue> groupBy,
	int buckets,
	AggregateBucketAutoOptions options = null
)
<ExtensionAttribute>
Public Shared Function BucketAuto(Of TInput, TIntermediate, TValue) ( 
	pipeline As PipelineDefinition(Of TInput, TIntermediate),
	groupBy As AggregateExpressionDefinition(Of TIntermediate, TValue),
	buckets As Integer,
	Optional options As AggregateBucketAutoOptions = Nothing
) As PipelineDefinition(Of TInput, AggregateBucketAutoResult(Of TValue))
[<ExtensionAttribute>]
static member BucketAuto : 
        pipeline : PipelineDefinition<'TInput, 'TIntermediate> * 
        groupBy : AggregateExpressionDefinition<'TIntermediate, 'TValue> * 
        buckets : int * 
        ?options : AggregateBucketAutoOptions 
(* Defaults:
        let _options = defaultArg options null
*)
-> PipelineDefinition<'TInput, AggregateBucketAutoResult<'TValue>> 
Parameters
- pipeline
- Type: MongoDB.DriverPipelineDefinitionTInput, TIntermediate
 The pipeline.
- groupBy
- Type: MongoDB.DriverAggregateExpressionDefinitionTIntermediate, TValue
 The group by expression.
- buckets
- Type: SystemInt32
 The number of buckets.
- options (Optional)
- Type: MongoDB.DriverAggregateBucketAutoOptions
 The options.
Type Parameters
- TInput
- The type of the input documents.
- TIntermediate
- The type of the intermediate documents.
- TValue
- The type of the values.
Return Value
Type: 
PipelineDefinitionTInput, 
AggregateBucketAutoResultTValue
            A new pipeline with an additional stage.
            
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type 
PipelineDefinitionTInput, 
TIntermediate. 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).
 See Also
See Also