How to know the state of the insert key?

Question

C++ / C#

How do I know what position the insert key is in, I mean in what mode, in "insert" or "replace" mode.

Answer 1

The state of the insert key is not global, but is valid only within the framework of one control.
You can try to extract this information from it.

Answer 2

In which field do you store A and B? Here by title and this field and do grouping orderby

Answer 3

use a second time groupby(); by product type