How to use one of the column as combo box in datagrid control (Windows Forms) ?

Hi,

I have the following tables in the database.

                    Employee
===========================
   EmployeeID  |  Name  |  CityID
===========================
      1             |  kishore | 10
-------------------------------------------------
      2             | Suresh  |  20
-------------------------------------------------
      3             | Rao      |  30
===========================

                     Cities
===========================
           CityID     |       CityName
===========================
             10       |       Chicago
-------------------------------------------------
             20       |       Atlanta
-------------------------------------------------
             30       |       St.Lowis
===========================

Now in i want to show the data in the datagrid control. When ever i want to insert a new row or udate the row, i should have the City column as combo box populated with "DataTextField" and "DataValueField". I am going to store the "cityid" in the "Employee" table. And i have to fill the combo box with "Cities" table.

Can you please provide the sample code ?

Advance Thanks for your time & patience.

Thanks,
Kishore