'宣言
Public Class _DataItemBinding Inherits GrapeCity.DataVisualization.Chart._BaseBinding(Of DataValueType) Implements GrapeCity.DataVisualization.Chart.IBinding(Of DataValueType)
public class _DataItemBinding : GrapeCity.DataVisualization.Chart._BaseBinding<DataValueType>, GrapeCity.DataVisualization.Chart.IBinding<DataValueType>