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CountFunction Class
Represents a function that returns the number of items in a set of items, including nested sets.
Inheritance Hierarchy

Namespace: Telerik.Windows.Data
Assembly: Telerik.Windows.Data (in Telerik.Windows.Data.dll) Version: 2017.2.614.40 (2017.2.614.40)
Syntax
public class CountFunction : EnumerableAggregateFunction

The CountFunction type exposes the following members.

Constructors
  NameDescription
Public methodCountFunction
Initializes a new instance of the CountFunction class.
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Methods
  NameDescription
Public methodCreateAggregateExpression
Creates the aggregate expression that is used for constructing expression tree that will calculate the aggregate result.
(Inherited from EnumerableAggregateFunction.)
Protected methodGenerateFunctionName
Generates default name for this function using this type's name.
(Inherited from EnumerableAggregateFunctionBase.)
Public methodMerge
Merges the specified item into the aggregate result according to the specified action.
(Overrides AggregateFunctionMerge(Object, AggregateResultMergeAction, AggregateResult, QueryableCollectionViewGroup).)
Protected methodOnPropertyChanged
Raise PropertyChanged Event.
(Inherited from AggregateFunction.)
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Properties
  NameDescription
Protected propertyAggregateMethodName
Gets the name of the aggregate method on the ExtensionMethodsType that will be used for aggregation.
(Overrides EnumerableAggregateFunctionBaseAggregateMethodName.)
Public propertyCaption
Gets or sets the informative message to display as an illustration of the aggregate function.
(Inherited from AggregateFunction.)
Protected propertyExtensionMethodsType
Gets the type of the extension methods that holds the extension methods for aggregation. For example Enumerable or Queryable.
(Inherited from EnumerableAggregateFunctionBase.)
Public propertyFunctionName
Gets or sets the name of the aggregate function, which appears as a property of the group record on which records the function works.
(Inherited from AggregateFunction.)
Public propertyResultFormatString
Gets or sets a string that is used to format the result value.
(Inherited from AggregateFunction.)
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Events
  NameDescription
Public eventPropertyChanged
Occurs when a property value changes.
(Inherited from AggregateFunction.)
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See Also