VisualDataGroup

This property holds the number of items in the group.

This property holds whether new items are assigned to this group by default.

This property holds the name of the group.

Each group in a model must have a unique name starting with a lower case letter.

This handler is called when items have been removed from or inserted into the group.

Each object in the removed and inserted arrays has two values; the index of the first item inserted or removed and a count of the number of consecutive items inserted or removed.

Each index is adjusted for previous changes with all removed items preceding any inserted items.

Adds count items starting at index to groups.

Returns a reference to the instantiated item at index in the group.

All items returned by create are added to the persistedItems group. Items in this group remain instantiated when not referenced by any view.

Returns a reference to the instantiated item at index in the group.

All items returned by create are added to the persistedItems group. Items in this group remain instantiated when not referenced by any view.

Returns a reference to the instantiated item at index in the group.

All items returned by create are added to the persistedItems group. Items in this group remain instantiated when not referenced by any view.

Moves count at from in a group to a new position.

Removes count items starting at index from the group.

Removes count items starting at index from groups.

Sets the groups count items starting at index belong to.

Returns a javascript object describing the item at index in the group.

The returned object contains the same information that is available to a delegate from the VisualDataModel attached as well as the model for that item. It has the properties:

• model The model data of the item. This is the same as the model context property in a delegate
• groups A list the of names of groups the item is a member of. This property can be written to change the item's membership.
• inItems Whether the item belongs to the items group. Writing to this property will add or remove the item from the group.
• itemsIndex The index of the item within the items group.
• inGroupName Whether the item belongs to the dynamic group groupName. Writing to this property will add or remove the item from the group.
• groupNameIndex The index of the item within the dynamic group groupName.