ASPx Start Row Editing Event Args e) Row Validating （行数据验证） protected void grid_Row Validating(object sender, Dev Express. event is raised when a row's Update button is clicked, but before the Grid View control updates the row.
This event is raised for each data row when the corresponding row within the table has been created.
This enables you to provide an event-handling method that performs a custom routine, such as canceling the update operation, whenever this event occurs.
A Grid View Update Event Args object is passed to the event-handling method, which enables you to determine the index of the current row and to indicate that the update operation should be canceled.
ASPx Grid View Column Data Event Args e) Custom Column Display Text（定制列文本展示） protected void grid_Custom Column Display Text(object sender, Dev Express.
ASPx Grid View Column Display Text Event Args e) Summary Display Text（合计行文本展示） protected void grid_Summary Display Text(object sender, Dev Express.