How to bind ComboBoxColumn of data grid view

Question

How to bind ComboColumn of data grid view using C#?

I have following code,but it is not displaying any result

private void LoadFromPlaces()

        {

            if (mobj.GetAllPlaces() == true)

            {

                DataSet ds = new DataSet();

                ds.ReadXml("http://localhost:2246/TicketSys/XmlFiles/Places.xml");

                gvDetails.DataSource = ds.Tables["Places"];

                BindingSource bs = new BindingSource();

                bs.DataSource = ds.Tables["places"];

                FromPlace.DataPropertyName = "PlaceID";//FromPlace is the Data Grid View Combo Box

                FromPlace.DataSource = bs;

                FromPlace.DisplayMember = "PlaceName";

                FromPlace.ValueMember = "PlaceID";

                

                

            }

        }

please tell me