A data value will be calculated and displayed at run time through an attached script. Users will not be able to edit the calculated value.
A data value will be calculated and displayed through an attached script. Users can edit the value if the calculation script has been written to accept the input. If a user does edit the calculated value, the custom message you specify in the Override Message box appears.
Note:
The Default list is available only when the Type option is set to User Entered or Read Only. The Neutral option is available from the Default list only when the States area in the Field tab is set to On/Off/Neutral.
Sets a custom message to display when an attached validation script detects an unacceptable value. By default, this situation causes a programming error to be generated at run time. To generate a warning instead, deselect the Error option. See To validate user input.
Note:
This option is not available when the Type option is set to Protect, Calculated – Read Only, or Read Only. Validation Script Message is a dynamic property. Dynamic properties are identified by active labels that have a green underline that you can click to dynamically bind the property to a data source. To turn active labels on and off, use the Show Dynamic Properties command in the Object palette menu. See To dynamically populate a validation script message.
  
See also  

Check box properties in the Value tab