A
Alvin
After Update only fires when you leave the field that was
changed. If you have to have field B reflect the changes
in fild A as they occur, you'll have to use On Change.
But On Change is tricky to use, since it fires each time
any character in the field changes, so you almost
certainly won't have a valid key until after you leave the
field -- making After Update the correct choice.
changed. If you have to have field B reflect the changes
in fild A as they occur, you'll have to use On Change.
But On Change is tricky to use, since it fires each time
any character in the field changes, so you almost
certainly won't have a valid key until after you leave the
field -- making After Update the correct choice.