这是一个用VB编写的程序，通过这个程序能迅速掌握如何对控件功能的扩展-This is a Visual Basic procedure for the adoption of this procedure can be quickly mastered how to control the expansion

this file for example for read Ms excel using Visual basic , this operation to open file Ms excel and inport data from excel to msflexgrid

Add Checkbox to MSFlexGrid Control for Visual Basic