find by xpath only in child of element with c# selenium -

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i have code : 

readonlycollection<iwebelement> questions = driver.findelements(by.xpath("//fieldset[@data-seleniumrp='question']")); foreach (iwebelement question in questions) {     readonlycollection<iwebelement> repdispo = question.findelements(by.xpath("//input[@data-selenium-positionquestion]")); }

my collection "questions" have 11 elements, right ! each "question" normaly have 4 elements ... code , have 44 results ( elements in page ) in "repdispo" ...

how childrend element , not element ?

i suspect problem in xpath inside foreach loop. need add . @ beginning of // axis make relative current question element :

".//input[@data-selenium-positionquestion]"

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