event before textchange

Have any event before textchange.Can I check all object change in form such as form change event.
For Example I want to save old record before I add new record
and If I didn't change anything in old record ,I won't save anything.But If I changed any columns,I will save it old data.
I use textbox for first column.Do you have any way to resolve it.Thank a lot.

the Leave event is probably a better place to do this, but, why not have a modular level variable that saves the old value,

ie

VB Code:

Private mstrSaveText as String
...
 
'In the Text Leave Event
 
if mstrSaveText <> txtText.Text then
  'do something with the Saved Text
  'do something else with the New Text
end if
mstrSaveText = txtText.Text