![](dotnetdiagramimages/MESCIUS_ActiveReports_Core_Rendering_GrapeCity_DataVisualization_Chart_IDateDataFieldDefinition.png)
'宣言
Public Interface IDateDataFieldDefinition Inherits IDataFieldDefinition, GrapeCity.DataVisualization.Chart.IEquatable(Of IDataFieldDefinition)
public interface IDateDataFieldDefinition : IDataFieldDefinition, GrapeCity.DataVisualization.Chart.IEquatable<IDataFieldDefinition>