How to set a DataGridView cell on editing state

Hi,
I want the ENTER key has the same behavior as the F2 key.
When the DataGrid have the focus and F2 key is pushed, the current cell become editable.

hi gain
     you want to type in datagrid cell by cliicking enter in the form or what , please explain again all of you want from you open the form to edit ,sorry
 

hi,
I want to write in a cell without click with the mouse, just by pressing the Enter key.

 
thanks

hi friend ,
   if i understand right , you want to wite in datagrid columns and rows , and its very easy , just click with the mouse in the row and type wht you want
and if i understand wrong , please explaine what you want again clearly
 
thanks