In a lot of books and articles that I've read on this control, it seems to suggest that the appropriate event to handle for this is the Cell Validating one. However, this event triggers a bit too often for my tastes and I'm not sure it is required.
For example, this event triggers everytimes the users switches to another row.
In the case of check box cells, however, you will typically want to handle the change immediately.
Rows in the control are not automatically sorted when a cell value is changed.
The following code example demonstrates how to use the E: System.
Please, could you elaborate a bit more and describe in detail what you want to achieve. I have a grid with values in it; quantity, price, discount (%), unit price.
If the user wished to place a discount on each row, they enter it once, and then in a For Each loop, I place the value in the cell; however the calculation does not take place.