Hello,In Master pages, you cannot make a subform flowed, If you create
it as Flowed also, it will not work. Say you have a you are having 3
fields in a subform. It may happend in the 2nd field the value may be
NULL or not NULL.So you can create 2 subform. One with all the three
fields, another with 1st and 3rd field. Also add a field(make it exclude
form layout) and in the code set some flags based on the value of the
2nd field. Write Script in both the subform.Script will be like below:
in Init...