New row inserted for each page refresh
<p>Hi I'm getting a strange problem while inserting records into database.
In my button click event I'm trying to insert some values into my database it is working fine. Once insertion is completed... again if I press F5 or refresh the browser a new row is getting inserting with the previous values in the table.</p>

<p>Why it is happening?</p>

<p>Thank you</p>
