callback on wx.GridCellChoiseEditor

[Bruno Normand]

Hi,
I use wx.grid.Grid with wxPython, in cell I have a wx.GridCellChoiseEditor.
I want to be able to control the selection made by the user, as I did not
find a callback being able to be associated the selection in the combobox, I
used the callback associated the change of the value in the cell (
wx.grid.EVT_GRID_CELL_CHANGE), which is active at the exit of the cell and
not when the user selected a value in the combobox posted by
GridCellChoiseEditor.
That goes as much as the seized value is valid and that I do not need not
modified; but if the value is invalid, I want to give the old value and
there begins the problem, the callback is automatically called as soon as I
carry out SetCellValue on the cell and as the posted value is not that
passed to SetCellValue but the value posted by the selection in the
combobox, I detect that the answer is invalid and impossible to leave there.

Would somebody have a solution to associate a callback during the seizure in
the combobox posted by wx.GridCellChoiseEditor ?
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