InfoPath Dev

hello all,,

i have 2 dd DD1 and DD2 with value DD1(1,2,3,4) and DD2(a,b,c,d) and a textbox filed..

now if i choose 4 then the textbox should display "n/a" and if i choose (c,d) it should also display "n/a"

            1           2         3          4

a                                              n/a

b                                             n/a

c         n/a      n/a         n/a     n/a

d         n/a      n/a         n/a    n/a

any help is highly apperciated i wish to use xpat or expression

thank you...

>> if I choose 4 then the textbox should display "n/a"

You want to create a rule to set the textbox value 

(1) From the Home tab, select "Manage Rules", this will open the Rules pane

(2) Left-click once on your textbox

(3) In the Rules pane, select New -> Action to add a new action rule

    Condition: DD2 is equal to 4

    Run These Actions -> Add -> Set a field's value

        Field: DD2

        Value: n/a

(4) Add similar rules for when DD1 is equal to c and DD1 is equal to d