Database id and listview items id get discrete

I am getting stuck with the issue I am getting the All messages from database and shows in list, list having check boxes when I pressed delete then checked check box deleted from database.

And when I am again click to see all message then all position of the message's get changed but in the database id remain same and further i delete some message then message from database not deleted because position id and database message id become different.

Please give me any suggestion to solve this issue thank you in advance...