Dynamically Loaded UserControl, receiving the click event from UserControl to Parent Page

 Hi,
   In a page , when I click a button 'showDialog' I am loading the user control dynamically in a dialog.  I am linking to the event in the user control as explained below. The parent page is not receiving this event.
  ex: (This is in the page class)
    Button_Click(){
         UseControl1 gc = dlg.LoadContent(:\UserControl1.csx);
        gc.CausePostback += new EventHandler(execute_CausePostback());
}
execute_CausePostback(){
   // I am trying to update the details grid in parent page
}
In UserControl class after clicking the submit button
Submit_Click(){
    saveRecord();
  raise event CausePostBack();
}
Any help is appreciated.
 
 
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