'宣言 Public Property VisualIntervalGroupDescriptions As IntervalGroupDescriptionCollection
public IntervalGroupDescriptionCollection VisualIntervalGroupDescriptions {get; set;}
'宣言 Public Property VisualIntervalGroupDescriptions As IntervalGroupDescriptionCollection
public IntervalGroupDescriptionCollection VisualIntervalGroupDescriptions {get; set;}
This property is used in a conjunction with the VisualIntervalGroupStyles property that defines UI for each group level.