Hello guys/girls

I have a slight problem. I'm supposed to develop an small application for my company without databases.

I want to have grid with choices. The first column & rows is from monday to sunday. The next couple of columns has to do with time.

Drawing:


I thought about using a DataGridView.

Problem: If somebody enters info in monday row & friday row, then how do I extract the info? I must somehow check the rows for entered info. If tueday is empty then how do I know?

Version: VB Express 2005