When you detect that there were changes in the table, and the event handler returns true, you can assign any string value to this property. The value will be available in the OnChange event handler as the MySqlTableChangeEventArgs.Reason property of the MySqlTableChangeEventArgs object.
Requirements
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2