public bool ReadData() { try { if (this.symbols == null) { this.symbols = new Dictionary<string, AlertItemCollection>(); } else { this.symbols.Clear(); } AlertCustomerExpressionDS alertCustomerExpressionDS = new AlertCustomerExpressionDS(); string orderFilePath = this.GetOrderFilePath(); if (File.Exists(orderFilePath)) { alertCustomerExpressionDS.ReadXml(orderFilePath); this.ImportFromXML(alertCustomerExpressionDS); } alertCustomerExpressionDS.Clear(); } catch (Exception ex) { throw ex; } return true; }