'宣言 Protected Friend Overridable Function CreateDateRangeExpression(Of TDataObjectType)( _ ByVal fieldName As String, _ ByVal includeStartDate As Date, _ ByVal excludedEndDate As Date _ ) As Expression(Of Func(Of TDataObject,Boolean))
protected internal virtual Expression<Func<TDataObject,bool>> CreateDateRangeExpression<TDataObjectType>( string fieldName, DateTime includeStartDate, DateTime excludedEndDate )