I'm using Arc 9.3.1 (Arc Editor).
In edit mode I've created a simple field calculation. For example's sake let's make it [Field3] = [Field1] + [Field2]
How do I 'keep' the calculation so Field3 will update as I change the values or add values in Field1 and Field2.
I have to keep running the calculation everytime I add data. Cannot it not update automatically?