公开(公告)号：US20090006466A1

公开(公告)日：2009-01-01

申请号：US12135913

申请日：2008-06-09

Applicant: Charles D. Ellis ,  Simon Loftus Petyon Jones ,  Jeffrey James Duzak ,  Joseph Matthew Chirilov ,  Andrew Becker

Inventor： Charles D. Ellis ,  Simon Loftus Petyon Jones ,  Jeffrey James Duzak ,  Joseph Matthew Chirilov ,  Andrew Becker

IPC: G06F17/30

CPC classification number: G06F17/246

Abstract: Individual cells within a spreadsheet may contain an extensible value as defined by an extensible value type. The extensible value type is a third party user defined value type that is incorporated into the spreadsheet as a supported data type. When the extensible value type is defined, an associated set of functions are developed to operate on the type. The spreadsheet manages instances of these extensible values such that they are properly maintained by the spreadsheet application while in use and released from memory when they are no longer in use.

Abstract translation: 电子表格中的单个单元格可能包含由可扩展值类型定义的可扩展值。 可扩展值类型是作为支持的数据类型合并到电子表格中的第三方用户定义的值类型。 当定义可扩展值类型时，开发一组相关的函数来对类型进行操作。 电子表格管理这些可扩展值的实例，使得它们在使用时由电子表格应用程序正确维护，并在内存中不再使用时从内存中释放。