New to Telerik UI for WinForms? Start a free 30-day trial

QueryableAggregateDescription

Class

Represents an aggregate description for QueryableDataProvider.

Definition

Namespace:Telerik.Pivot.Queryable

Assembly:Telerik.WinControls.PivotGrid.dll

Syntax:

[DataContract]
public abstract class QueryableAggregateDescription : QueryableAggregateDescriptionBase, INotifyPropertyChanged, ISupportInitialize, IServiceProvider, IEditable, IAggregateDescription, IDescriptionBase, INamed

Inheritance: objectCloneableSettingsNodeDescriptionBaseAggregateDescriptionBaseQueryableAggregateDescriptionBaseQueryableAggregateDescription...

Derived Classes: QueryablePropertyAggregateDescriptionBase

Implements: IAggregateDescriptionIDescriptionBaseIEditableINamedINotifyPropertyChangedIServiceProviderISupportInitialize...

Inherited Members QueryableAggregateDescriptionBase.CloneCore(Cloneable)QueryableAggregateDescriptionBase.StringFormatQueryableAggregateDescriptionBase.StringFormatSelectorAggregateDescriptionBase.TotalFormatAggregateDescriptionBase.DisplayValueAsKpiDescriptionBase.GetDisplayName()DescriptionBase.GetUniqueName()DescriptionBase.DisplayNameDescriptionBase.CustomNameSettingsNode.NotifyServicesChanged()SettingsNode.NotifySettingsChanged(SettingsChangedEventArgs)SettingsNode.OnSettingsChanged(SettingsChangedEventArgs)SettingsNode.BeginEdit()SettingsNode.BeginInit()SettingsNode.EndInit()SettingsNode.GetService(Type)SettingsNode.OnPropertyChanged(string)SettingsNode.RemoveSettingsChild(SettingsNode)SettingsNode.AddSettingsChild(SettingsNode)SettingsNode.GetServiceOverride(Type)SettingsNode.OnEnteredEditScope()SettingsNode.OnExitingEditScope()SettingsNode.ParentSettingsNode.SettingsChangedSettingsNode.ServicesChangedSettingsNode.PropertyChangedCloneable.Clone()Cloneable.CreateInstanceCore()...

Properties

AggregateMethodName

string

Gets the name of the aggregate method on the ExtensionMethodsType that will be used for aggregation.

protected abstract string AggregateMethodName { get; }

Property Value:

The name of the aggregate method that will be used.

ExtensionMethodsType

Type

Gets the type of the extension methods that holds the extension methods for aggregation. For example Enumerable or Telerik.Pivot.Queryable.

protected virtual Type ExtensionMethodsType { get; }

Property Value:

The type of that holds the extension methods. The default value is Enumerable.

FunctionName

string

Gets or sets the name of the aggregate function, which appears as a property of the group record on which records the function works.

[DataMember]
public virtual string FunctionName { get; set; }

Property Value:

The name of the function as visible from the group record.

Methods

CreateAggregateExpression(Expression, string)

Creates the aggregate expression.

protected abstract Expression CreateAggregateExpression(Expression enumerableExpression, string aggregatedValueName)

Parameters:enumerableExpressionExpression

The grouping expression.

aggregatedValueNamestring

TODO: finish this.

Returns:

Expression

CreateAggregateValueExpression(ParameterExpression)

Creates the aggregate expression.

protected abstract Expression CreateAggregateValueExpression(ParameterExpression itemExpression)

Parameters:itemExpressionParameterExpression

TODO: finish this.

Returns:

Expression

GenerateFunctionName()

Generates identification string for this function using AggregateMethodName.

protected abstract string GenerateFunctionName()

Returns:

string

Function identification string.