Hello, Rahid,
what are you going to ask?
What type of question are you using?
Just a multiple response question to check "Rice", "Vegetables", ... and have the option to enter up to two "Others"?
That was discussed here some time ago. Use "Multiple with comments" and hide all textboxes whére not needed. Just do a search for that.
Or do you want them to enter a value (multiple numerical)?
In that case I would suggest to divide the question.
First your precoded items.
Then ask: "Are there other..." and depending on the answers ask the values. See the sample surveys of Expression Manager, Cascading array filters.
Best regards
Joffm
Volunteers are not paid.
Not because they are worthless, but because they are priceless