eventhandler usage in data grid view for combo box

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C#

Here code as follows;
for my above code how to use data grid view event handler.

private void datagridView_CellEnter(object sender, DataGridViewCellEventHandler e)
{
 if (e.KeyCode == Keys.Space)
 {
   Message Box.Show("test");
 }
} 

here i use the above code but it is not working.it shows the error.

'System.Windows.Forms.DataGridViewCellEventHandler' does not contain a definition for 'KeyCode' and no extension method 'KeyCode' accepting a first argument of type 'System.Windows.Forms.DataGridViewCellEventHandler' could be found (are you missing a using directive or an assembly reference?) .

if (e.KeyCode == Keys.Space)
 {
   Message Box.Show("test");
 }

for the above code in key code

private void datagridView_CellEnter(object sender, DataGridViewCellEventHandler e)
for the above line which datagriview event handler to be used.

please help me.

/Edit Code Block Added