'宣言
Public Class _SankeyCategoryEncodingDefinitionBuilder Implements GrapeCity.DataVisualization.Chart.ICategoryEncodingDefinitionBuilder(Of ISankeyCategoryEncodingDefinition)
public class _SankeyCategoryEncodingDefinitionBuilder : GrapeCity.DataVisualization.Chart.ICategoryEncodingDefinitionBuilder<ISankeyCategoryEncodingDefinition>