Serves as a base class for group descriptors of QueryableDataProvider. that will be used for column and row grouping.
Definition
Namespace:Telerik.Pivot.Queryable
Assembly:Telerik.WinControls.PivotGrid.dll
Syntax:
[DataContract]
public abstract class QueryableGroupDescription : GroupDescription, INotifyPropertyChanged, ISupportInitialize, IServiceProvider, IGroupDescription, IDescriptionBase, INamed, IEditableInheritance: objectCloneableSettingsNodeDescriptionBaseGroupDescriptionBaseGroupDescriptionQueryableGroupDescription...
Derived Classes:
Implements:
Inherited Members
Properties
Gets the collection of calculated items that are used to initialize a group with a set of subgroups and summarized value.
[DataMember]
public Collection<CalculatedItem> CalculatedItems { get; }Gets a value indicating whether grouped data should be processed before handing it over to the engine.
protected virtual bool NeedsProcessing { get; }true if should process; otherwise, false.
Methods
Creates a deep copy of this group description by copying core properties including sort order and group comparer. This method ensures that cloned instances maintain their grouping and sorting configuration independently.
protected override void CloneCore(Cloneable source)The source group description to clone from.
Overrides:
Notes to Inheritors If you derive from Cloneable, you may need to override this method to copy all properties. It is essential that all implementations call the base implementation of this method (if you don't call base you should manually copy all needed properties including base properties).
Creates the group key expression.
protected abstract Expression CreateGroupKeyExpression(IEnumerable<Expression> valueExpressions)Value expressions used for generating group key.
Returns:Expression that creates group key for the given item.
Creates value expressions for values that will be used for generating group key expression.
protected abstract IEnumerable<Expression> CreateGroupKeyValuesExpressions(ParameterExpression itemExpression)The parameter expression, which will be used for grouping.
Returns:IEnumerable<Expression>
Value expressions.
Returns all possible group keys for this instance.
protected override IEnumerable<object> GetAllNames(IEnumerable<object> uniqueNames, IEnumerable<object> parentGroupNames)Enumeration of all unique group keys that were discovered after grouping.
parentGroupNamesIEnumerable<object>Enumeration of all parent groups.
Returns:IEnumerable<object>
Returns all possible group keys for this instance.
Overrides: