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IAggregateFluentExtensions.BucketAutoForLinq2<TResult, TValue, TNewResult> Method

Appends a $bucketAuto stage to the pipeline (this method can only be used with LINQ2).

Namespace:  MongoDB.Driver
Assembly:  MongoDB.Driver (in MongoDB.Driver.dll) Version: 2.20.0+ee01960089f28ea1b501690df5fc9f6318a70242
Syntax
public static IAggregateFluent<TNewResult> BucketAutoForLinq2<TResult, TValue, TNewResult>(
	this IAggregateFluent<TResult> aggregate,
	Expression<Func<TResult, TValue>> groupBy,
	int buckets,
	Expression<Func<IGrouping<TValue, TResult>, TNewResult>> output,
	AggregateBucketAutoOptions options = null
)

Parameters

aggregate
Type: MongoDB.Driver.IAggregateFluent<TResult>
The aggregate.
groupBy
Type: System.Linq.Expressions.Expression<Func<TResult, TValue>>
The expression providing the value to group by.
buckets
Type: System.Int32
The number of buckets.
output
Type: System.Linq.Expressions.Expression<Func<IGrouping<TValue, TResult>, TNewResult>>
The output projection.
options (Optional)
Type: MongoDB.Driver.AggregateBucketAutoOptions
The options (optional).

Type Parameters

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

Return Value

Type: IAggregateFluent<TNewResult>
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 IAggregateFluent<TResult>. 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