Statemanagement on click of previous and next buttons

I have a webform , where I have number of label controls. I am binding the label controls in CodeBehind from a list of values(class object). I also have Previous and Next buttons on the same page .On click of these buttons, the values on the labels should change by taking values from the list. So, in this case, how I can maintain the state while moving from one page to another.