Class SummaryAggregateBase

Class that contains the methods and properties for all the aggregation calculations. It serves as the base for all the aggregators.

Inheritance

System.Object

SummaryAggregateBase

Implements

ISummaryExpressionAggregate

ISummaryAggregate

ISummaryAdjustable

Inherited Members

System.Object.ToString()

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

Namespace: Syncfusion.Data

Assembly: Syncfusion.Data.WPF.dll

Syntax

public class SummaryAggregateBase : ISummaryExpressionAggregate, ISummaryAggregate, ISummaryAdjustable, ISummaryAggregateForGroup, ISummaryParallelizable

Constructors

SummaryAggregateBase()

Declaration

public SummaryAggregateBase()

Properties

CanParallelize

Gets or sets a boolean value indicating whether to allow parallelize or not.

Declaration

public bool CanParallelize { get; set; }

Property Value

Type	Description
System.Boolean	A boolean value indicating whether to allow parallelize or not.

Methods

AdjustSummaryCalculation(Object, Object, Object, NotifyCollectionChangedAction, String, Int32)

Adjusts the summary calculation based on the given values.

Declaration

public virtual object AdjustSummaryCalculation(object currentValue, object oldValue, object newValue, NotifyCollectionChangedAction recordaction, string propertyName, int recordCount)

Parameters

Type	Name	Description
System.Object	currentValue	The current summary value.
System.Object	oldValue	The old summary value.
System.Object	newValue	The new summary value.
System.Collections.Specialized.NotifyCollectionChangedAction	recordaction
System.String	propertyName	The name of the property that is changed.
System.Int32	recordCount	The count of the records in the group.

Returns

Type	Description
System.Object	Returns the modified value of the summary calculation based on the given values.

CalculateAggregateExpressionFunc()

Calculates the aggregate expression func for the group.

Declaration

public virtual Action<IEnumerable, string, Expression<Func<string, object, object>>, PropertyDescriptor> CalculateAggregateExpressionFunc()

Returns

Type	Description
System.Action<System.Collections.IEnumerable, System.String, System.Linq.Expressions.Expression<System.Func<System.String, System.Object, System.Object>>, System.ComponentModel.PropertyDescriptor>	The aggregate expression func for the group.

CalculateAggregateFunc()

Calculates the custom aggregate for the specified summary column.

Declaration

public virtual Action<IEnumerable, string, PropertyDescriptor> CalculateAggregateFunc()

Returns

Type	Description
System.Action<System.Collections.IEnumerable, System.String, System.ComponentModel.PropertyDescriptor>	The custom aggregate for the specified summary column.

CalculateAggregateFuncForGroup()

Calculates the aggregate func for the group.

Declaration

public virtual Action<IEnumerable, string, PropertyDescriptor> CalculateAggregateFuncForGroup()

Returns

Type	Description
System.Action<System.Collections.IEnumerable, System.String, System.ComponentModel.PropertyDescriptor>	The aggregate func for the group.

Implements

ISummaryExpressionAggregate

ISummaryAggregate

ISummaryAdjustable