Browser.mod.DB.LoadCallstackPreview C# (CSharp) Метод

        public static bool LoadCallstackPreview(int callstack_uid, out string callstack)
        {
            callstack = "";

            using (SqlConnection conn = new SqlConnection(connectionString))
            {
                try
                {
                    conn.Open();

                    SqlCommand cmd1 = new SqlCommand("usp_select_callstack_preview", conn);
                    cmd1.CommandType = CommandType.StoredProcedure;

                    cmd1.Parameters.AddWithValue("@callstack_uid", callstack_uid);

                    SqlDataReader reader = cmd1.ExecuteReader();

                    while (reader.Read())
                    {
                        callstack += reader.GetString(0);
                        callstack += "\r\n";
                    }

                    reader.Close();
                }
                catch (System.Exception)
                {
                    return false;
                }
            }

            return true;
        }