[]

Interops
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Wijmo.Collectionviewgroup

CollectionViewGroup Class

Represents a group created by a CollectionView object based on its CollectionView.groupDescriptions property.

Heirarchy

CollectionViewGroup

Constructors

constructor

Properties

Methods

getAggregate

Constructors

constructor

new CollectionViewGroup(groupDescription: GroupDescription, name: string, level: number, isBottomLevel: boolean): CollectionViewGroup

Initializes a new instance of the CollectionViewGroup class.

Parameters
- groupDescription: GroupDescription
  
  GroupDescription that owns the new group.
- name: string
  
  Name of the new group.
- level: number
  
  Level of the new group.
- isBottomLevel: boolean
  
  Whether this group has any subgroups.
Returns CollectionViewGroup

Properties

groupDescription

groupDescription: GroupDescription

Gets the GroupDescription that owns this group.

groups

groups: CollectionViewGroup[]

Gets an array containing this group's subgroups.

isBottomLevel

isBottomLevel: boolean

Gets a value that indicates whether this group has any subgroups.

items

items: any[]

Gets an array containing the items included in this group (including all subgroups).

level

level: number

Gets the level of this group.

name

name: string

Gets the name of this group.

Methods

getAggregate

getAggregate(aggType: Aggregate, binding: string, view?: ICollectionView, sheet?: any): any

Calculates an aggregate value for the items in this group.

Parameters
- aggType: Aggregate
  
  Type of aggregate to calculate.
- binding: string
  
  Property to aggregate on.
- Optional view: ICollectionView
  
  CollectionView that owns this group.
- Optional sheet: any
Returns any

The aggregate value.