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