'宣言
Public MustInherit Class MapSpatialElement
public abstract class MapSpatialElement
'宣言
Public MustInherit Class MapSpatialElement
public abstract class MapSpatialElement
System.Object
GrapeCity.ActiveReports.PageReportModel.MapSpatialElement
GrapeCity.ActiveReports.PageReportModel.MapLine
GrapeCity.ActiveReports.PageReportModel.MapPoint
GrapeCity.ActiveReports.PageReportModel.MapPolygon