![](dotnetdiagramimages/MESCIUS_ActiveReports_Core_Rendering_GrapeCity_DataVisualization_Chart_INeedleOverlayItemModel.png)
'宣言
Public Interface INeedleOverlayItemModel Inherits ILineOverlayItemModel, IModel, IOverlayItemModel, IQueryInterface, IViewModel
public interface INeedleOverlayItemModel : ILineOverlayItemModel, IModel, IOverlayItemModel, IQueryInterface, IViewModel