FarPoint.Win.Spread.Keystroke k = new FarPoint.Win.Spread.Keystroke(Keys.C, Keys.None, false);
FarPoint.Win.Spread.InputMap im;
im = fpSpread1.GetInputMap(FarPoint.Win.Spread.InputMapMode.WhenAncestorOfFocused);
im.Put(k, FarPoint.Win.Spread.SpreadActions.CancelEditing);