How to command/set a databound combobx's SelectedItem

[JnrJnr]

Hi, I have a combobox that is databound. It displays all the cities. Its DisplayMember is "City" and its ValueMember is "CityID"
At runtime I am trying to change the SelectedItem.

Combobox.SelectedItem = "London";

I know the combobx's items is a representation of rows in the database (System.Data.DataRowView).
How can I do this so that when I use Combobox.SelectedItem = "London", that it does not just return System.Data.DataRowView but give me the value of London.
Is this possible with a databound combobox?
It works with a none-databound combobox.

Please help me!

[JnrJnr]

I found a solution to my problem. I dont know if this is good practise but what I did was use

Combobox.Text = "London"

This works both for a combobox with a dropdownstyle of "dropdownlist" and "simple".
The selected value is also correct in 'relation' to the Text.