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Grid Context Menu on Cell
Hello Lino,
In a Vaadin Grid what can be SELECTED is a row, not a cell.
However a cell can have FOCUS.
Both of these concepts have a visual indicator. Don't mix up the two concepts.
From what you write I believe you mean the FOCUS indicator, not the SELECTION indicator.
There's a ticket on the issue here. The ticket is on the ContextMenu add-on but as pointed out by Sami Ekblad the problem is probably in the Core, not in the add-on. In short what is being discussed is if cell focus should be changed on any form of mouse click on a Grid. Currently focus is only changed on left-button mouse click, not on right-button mouse-click. In particular in connection with things like the row context menus this becomes very confusing so I'm all for if this would change either by allowing focus to change on right-button click as well or allowing cell focus feature to be turned off. If you want to turn off the cell focus feature you can do it yourself with a bit of CSS hack.
Peter