Research and Application Based on DataWindow Data Manage and Update
Liu Du · Jisuanji yingyong yanjiu · 2001
The basic principles and realization flow of datawindow control managing data are introduced. And the functions and mutual relations of datawindow object's four buffers (PrimaryBuffer,DeleteBuffer,FilterBuffer,OriginalBuffer) are explicated. And the basic principles and process of that each buffer accomplishes its own functions to finish inserting, deleting, updating data and modifying database. Finally, some application of datawindow object's data update principles in programming is discussed, and some examples and codes are given to illustrate them.