I tested the solution of https://www.experts-exchange.com/Programming/Programming_Languages/Delphi/Q_20369496.html
and I found the following runtime problem:
1. Click for example the second cell in the second column. Appears the combobox. Select a value in the combobox by clicking. The cell takes over the selected value.
2. Click again on this cell, and appears again in the combobox the earlier selected value. Click somewhere in the table on a cell, the cell get the focus. Then click back on the combox and select an other value. After clicking this value appears in the cell which got the focus.
I'd like to avoid this mistake. How would be possible to prevent this?
Thanks for every comment