在UITableview中，键入的文本字段值在不同的单元格中重复，如何使用目标c来纠正它

I am new to objective c in my tableview i populated the textfield dynamically in the uitableview cell its working fine but whenever the user types the values in the uitextfield the value get repeated to another cell textfield can anyone help me how to solve this error.This is my sample code and i also the added the sample screen shot below for your reference . I am new to objective c in my tableview i popul