I'm binding a comboBox to a collection of users sended by a web-service.

When I try to read the selected value using :

```
string x = comboSpec.SelectedItem.ToString();

or 

string x = comboSpec.SelectedValue.ToString();

```

I get (Breakpoint mode) : 

```
Name | Value                          | Type

x    | "UI.WebServiceReference.Users" | string

```

How can I get the selected value from the comboBox (like "admin") and not the type of the binded element ?