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IAggregateFluentExtensionsBucketAutoTResult, TValue Method (IAggregateFluentTResult, ExpressionFuncTResult, TValue, Int32, AggregateBucketAutoOptions)

Appends a $bucketAuto stage to the pipeline.

Namespace:  MongoDB.Driver
Assembly:  MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.11.0+cb27a82ea70620ad1acad8058809be8302ae4f2a
Syntax
public static IAggregateFluent<AggregateBucketAutoResult<TValue>> BucketAuto<TResult, TValue>(
	this IAggregateFluent<TResult> aggregate,
	Expression<Func<TResult, TValue>> groupBy,
	int buckets,
	AggregateBucketAutoOptions options = null
)

Parameters

aggregate
Type: MongoDB.DriverIAggregateFluentTResult
The aggregate.
groupBy
Type: System.Linq.ExpressionsExpressionFuncTResult, TValue
The expression providing the value to group by.
buckets
Type: SystemInt32
The number of buckets.
options (Optional)
Type: MongoDB.DriverAggregateBucketAutoOptions
The options (optional).

Type Parameters

TResult
The type of the result.
TValue
The type of the value.

Return Value

Type: IAggregateFluentAggregateBucketAutoResultTValue
The fluent aggregate interface.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IAggregateFluentTResult. 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