In the case of the ParseValue event, Value will return the value read from the control. Changing the Value in this event will change how the CalcManager interprets the value. For example, in order to use a formatting number like "$5.00", it must be converted into a numeric value like "5.0".
In the case of the FormatValue event, Value will return the value from the Calcmanager that is about to be assigned to a property on the control. Changing the Value in this case will assign the newly changed value to the control instead. So this can be used to change the value, the datatype, or simply to format the value into a more user-friendly display.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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