Count of views

This section will demonstrate how to count the number of filtering forms you will be having on  form, that is, we intend to show the real power of the usage of filtering object and OOF. The aim is to show that playing on the form, you may have many reviews without the user being aware of it. But what are our filtering objects? If we neglect the internal object conditions, filtering object presents a simple switch with two states:
            1)       the state of disconnection – the state mark 0
            2)       the state of connection – the state mark 1
We shall give the label
            n- to the number of primary objects and
            Nv – for the total number of potential reviews
We could utilize the knowledge of our connection technique (binary numbers) and design the form with three objects:    

The total number of reviews is : Nv = 2 ^ n
In order to this number of reviews, we need to have the eliminating filter type (AND operator).
The table presents some of the values for the expression 2^n

Let us connect OR operator as well. There may be only two operators AND ili OR between our objects, that is, our operators are objects with two states.
Let us mark the states of our operators;
            1)       AND operator –the state mark 0
            2)       OR operator – the state mark  1
The number of operator objects will be for one unit smaller than the number of filtering objects. Take into consideration the example with two filtering objects:

The following should be considered:
            1)       Operators AND/OR are in direct correlation with the filtering object  (Op1 -> Ob2)
            2)       Operator does not exist independently
            3)       Operator is to be considered only provided that the object is being active (Ob2)
            4)       Operator OR  does not exist on the first connected filtering object (notice the difference between the starting object and the first connected filtering object).

The analysis of valid reviews (calculated by the computer programs):

The table below presents comparative values of the eliminating filter which turns on AND/OR operators.

See also
Vdf objects | Special objects | Extended objects | Kondesed objects