Hi Georges.
If you want toidentifythe last changemade ona specific propertyhere are the steps.
This examples has been made with a physical model. You can do the same thing with Logical Model
Create MetaClass Table
Create an Event Handler Initialize
Create a Validate Handler
Create Extended Attributes : Date, Old Comment and Time
Create Form with Attributes : Date and Time
The result : each time the comment field is modified the date and time fields are set.
You can see live the date and time fields modification. If you modify the comment field you can see the new date and time.
If you press Apply or OK button the date and time are saved. If you press Cancel button the date and time are not saved.
If you modify others fields the date and time are not modified.
Note : If you want tobe moresophisticatedyou couldalso savethe old dateand time.So ifthe personadds a word tofieldcommentandclearsbefore saving.You couldtellthat therewas noreal changeon the way backwith the old date and time. To do add an 'else' in validate event handler
Itthere'sseveral alternativesyou canperformaccording to yourneeds.
