Adding DateTimePicker to an **EXISTING** DataGridView column

I have a datagridview which is bound to a datatable.  I followed the code shown in the article: http://msdn2.microsoft.com/en-us/library/7tas5c80.aspx which adds a datetimepicker control to a datagridview column.  The problem is: I need to add the datetimepicker control to the date column in my EXISTING datagrid, so that users can edit the date value by using the DateTimePicker which appears when a cell in that 'Date' column is edited.

I'm sure I could define a new datagridview column to include a DTP control, then add this new column to the datagrid and then copy the values from my existing date column to this new column and then hide the old column.  But there must be a cleaner way to achieve adding a DTP to a datagridview column???Start Free Trial