[Solved] Use of unassigned local variable "dr"

[brown monkey]

Why is she (C#) treating "dr" as an unassigned local variable? Or am I missing something?

            natureofcollections n=new natureofcollections();
            SqlDataReader dr;
            try
            {
                monkey.sql.sqlconnection.openconnection(cn);
                dr=new monkey.sql.sqlcommand("selectallnatureofcollections",cn).executereader();
                while(dr.Read())
                {
                    n.add(new natureofcollection(dr[0].ToString(),
                        dr[1].ToString(),
                        dr[2].ToString()));
                }
            }
            catch(Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            finally
            {
                dr.Close();
                monkey.sql.sqlconnection.closeconnection(cn);
            }
            return n;

Thank you.