dropdownlist DataTextField property

Using an asp:DropDownList control on a webform.  The databound has id, lastname, firstname fields, but no fullname  (lastname + ', ' + firstname).  I need the fullname however I am not allowed to alter the sql query to return the fullname...so I think I need to find an alternative to the datatextfield.  
<asp:DropDownList ID="ddlFullName" runat="server"  DataTextField="???" DataValueField="ID"></asp:DropDownList>

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you may need to change from using the databinding approach to manually adding items to the list. Something like this:

                    For i As Integer = 0 To ds.Tables(0).Rows.Count - 1

                        Dim dr As DataRow = ds.Tables(0).Rows(i)

                        Dim itm As New ListItem(dr("ID"), dr("Firstname") + " " + dr("LastName"))



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Declare a variable named Full Name
String Fullname="";
Exceute the query and get the query in sqldatareader
Fullname=dr["FirstName"].toString() +' '+dr["Lastname"].ToString();

Then the Fullname variable has the full name of the candidate....
If u want further help ask me...
MariaHaltAuthor Commented:
Although I think both solutions above will work, we must use strongly typed code and found my solution here, http://www.ipreferjim.com/site/2009/04/displaying-multiple-fields-in-a-dropdownlists-datatextfield/.  


ddlUsers.DataSource = BLL.Employee.GetEmployees()  

2                 .Select(be =>  

3                     new {  

4                         ID = be.Id,  

5                         FullName = String.Format("{0}{1}{2}",  

6                                     be.LastName,  

7                                     (!string.IsNullOrEmpty(be.FirstName) ? ", " : string.Empty),  

8                                     be.FirstName)  

9                         }).AsEnumerable();
MariaHaltAuthor Commented:
I'm accepting my solution b/c it works for strongly typed code and may someday help others faced with the same problem.
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