How can i get all the portlet positions in a portal at server side

[shashi]

foreach (Portlet portlet in ControlUtils.FindControls<Portlet>(this.Portal1))
{
lblID.Html += portlet.ID + "<br />";
// i want portlet position here
this.lblIndex.Html += "i want portlet position(columnindex &amp; position here";
}

How can i get all the portlets positions(Column index, position) in a specified portal at server side.

any help would be appreciated thanx in advance.