I want to make a field as required or not based on the value of another field
I have a field called "status"(dropdown) with the values yes and no.
When i select yes, this parent field called "Início V.", should be required, when i select no, should bt not required(remove validation)
The big problem is: I’m use tabular input. See the image
https://drive.google.com/open?id=0B4SB62Ct6cKRQnY2VkJYVjA5cVBnNGJqTHpfcXIxVkFWd21n
Someone can help me?