Bind combobox on celldoubleclick of datagridview

Question

i have a combobox and datagridview.  i wants to bind combobox on celldoubleclick of datagridview.

 

binding table have id and name column.

 

id nvarchar(15)  primary key with 'Pub' prefix.

 

i have try 

 

1.    PublisherList.SelectedItem = dt.Rows[0][5].ToString();

2.    PublisherList.SelectedItem = PublisherList.FindStringExact(dt.Rows[0][5].ToString());

3.    PublisherList.SelectedValue = Convert.ToString(BookList.CurrentRow.Cells[4].Value);