'宣言
Public MustInherit Class _CategoryEncodingDefinition Inherits _EncodingDefinition Implements ICategoryEncodingDefinition, IEncodingDefinition, GrapeCity.DataVisualization.Chart.IEquatable(Of IEncodingDefinition)
public abstract class _CategoryEncodingDefinition : _EncodingDefinition, ICategoryEncodingDefinition, IEncodingDefinition, GrapeCity.DataVisualization.Chart.IEquatable<IEncodingDefinition>