delete last char in Datagrid

[Josep]

Hi,

I try to delete the last char from a editable cell of the datagrid but I
can't..

I have a numerical keyboard as images with the mouseup that send the number
to the focusedobject().

put "7" after the focusedobject 

This work fine, but if I want delete the last char, simulate the backspace
key, don't work.

delete the last char of the focusedobject


Also, is posible edit directly the cells of the datagrid without make a
doubleclick over the cell? 

Salut,
Josep
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