I have a notebook with many (possibly 100) dynamic variables. I do a calculation using these variables and get a result. If I change one of my dynamic variables then the results of the calculation are no longer correct and I need to do the calculation again. What I need is a method for identifying the status of the calculation. Is it current and correct or has one of the variables changed and it is now out-of- date?
I give a toy example below where pressing a button corresponds to doing the calculation and setting a status flag to current. If I change one of the dynamic variables then I want the status to change to out-of-date. I give an input field with a dynamic with a second argument which enables me to change the status. This works but my problem is that I have many ways of changing the dynamic variables and I cannot associate each with a two argument dynamic. I thus need a general way of checking to see if a variable has changed and if so updating the status. Is this possible?