how to catch return values seperately

hi,

i am doing a search application in that i want to retrieve the data from the database,data means username and userid ,if i binded username its bonding to textbox,my requirement is i have to take userid also along with username but only username have to bind to textbox and userid have to use in someother place,
how can i get,

code:


public List<string[]> GetUsers(string SearchText)
{

List<string[]> result = new List<string[]>();

clsGlobal objglobal = new clsGlobal();
DataSet dsUsername;


dsUsername = objglobal.search(Session["RoomID"].ToString(), SearchText);



foreach (DataRow dRow in dsUsername.Tables[0].Rows)
{
string[] str = new string[2];
str[0] = dRow["Username"].ToString();
str[1] = dRow["UserID"].ToString();
result.Add(str);
}

return result;
}


Thanks in advance,
Naseer