Hi Frank,

Normally, i do the following: create a class to your textboxes and use it at all your forms. Add at your class designer the follwing code to the GOTFOCUS event:

Public MyValue
MyValue = this.Value

At the LOSTEVENT (or InteractiveChangeEvent, depends of waht you want) event add:

If This.Value ...... && Code to validate error
Messagebox("Error....")
This.Value = MyValue && Give the last value
Release MyValue
Endif


That should work!

Cheers,

Ricardo