'宣言
Public Interface IUnionRegion Inherits GrapeCity.DataVisualization.Chart.IEquatable(Of IRegion), IRegion
public interface IUnionRegion : GrapeCity.DataVisualization.Chart.IEquatable<IRegion>, IRegion
'宣言
Public Interface IUnionRegion Inherits GrapeCity.DataVisualization.Chart.IEquatable(Of IRegion), IRegion
public interface IUnionRegion : GrapeCity.DataVisualization.Chart.IEquatable<IRegion>, IRegion