'宣言 Public MustInherit Class FlexGridBaseBuilder (Of T,TControl As FlexGridBase(Of T), TBuilder As FlexGridBaseBuilder(Of T,TControl,TBuilder)) Inherits ItemsBoundControlBuilder(Of T,TControl,TBuilder)
public abstract class FlexGridBaseBuilder<T,TControl,TBuilder> : ItemsBoundControlBuilder<T,TControl,TBuilder> where TControl: FlexGridBase<T> where TBuilder: FlexGridBaseBuilder<T,TControl,TBuilder>