DXEVAL system variable
Function Description:
The DXEVAL system variable is used to control when data extraction tables are compared against the data source. It may display update notification when the data is not current.
Type : Integer 
Saved in : Drawing 
Initial value : 12 
Range : 0 ~ 511
System Variable Value:
0 : no notification
1 : open 
2 : save
4 : print 
8 : publish
16 : eTransmit/ Archive 
32 : automatically update when saving
64 : automatically update when printing 
128 : automatically update when printing
256 : automatically update when eTransmiting/ Archiving