How can I use DataTextField on an element that is not a ListControl?

[sitsequat]

So here's my situation: I have a DropDownList that I populate when a certain event is triggered. To populate it, I execute a SQL query that returns two columns: ID and Name. I bind the Name to the DropDownList using DataSource/DataTextField/DataValueField, but I want to save the ID as well (to use in a second query). How can I do this?I have tried saving the ID to a hidden input field, because I want to use it but not display it to the user. But input is not a ListControl, so it doesn't work. How do I get the matching ID of the Name selected in the DropDownList?\[code\] string strConn = ConfigurationManager.ConnectionStrings["ConnectionStringName"].ConnectionString; SqlConnection con = new SqlConnection(strConn); SqlCommand cmd = new SqlCommand(); cmd.Connection = con; cmd.CommandType = CommandType.Text; cmd.CommandText = "SELECT Id, Name FROM Users WHERE Age > 10"; DataSet objDs = new DataSet(); SqlDataAdapter dAdapter = new SqlDataAdapter(); dAdapter.SelectCommand = cmd; con.Open(); dAdapter.Fill(objDs); con.Close(); if (objDs.Tables[0].Rows.Count > 0) { NameDropDown.DataSource = objDs.Tables[0]; NameDropDown.DataTextField = "Name"; NameDropDown.DataValueField = "Name"; NameDropDown.DataBind(); NameDropDown.Items.Insert(0, "--Select--"); } else { NameDropDown.Items.Clear(); NameDropDown.Items.Insert(0, "No names found"); }\[/code\]