form method define get hidden input 4 pageNo. , : http://localhost:4647/Project/MyList.aspx.
<html>
<body>
<form method="get">
<input name="pageNo" type="hidden" value="4"/>
<input type="submit" value="submit"/>
</form>
</body>
</html>
, , MyList.aspx, action . Default.aspx
<html>
<body>
<form method="get" action="MyList.aspx">
<input name="pageNo" type="hidden" value="4"/>
<input type="submit" value="submit"/>
</form>
</body>
</html>
action form.
, get post