Hi everyone!<BR>I have a dropdown server control on a web form. Autopostback on the control is set to true, that is when items are changed the page is automatically posted back. <BR><BR>I would like to have this functionality PLUS I would like to do<BR>some data processing BEFORE the page is posted back. That is the same event on the control will have to perform this two things.<BR>Actually, I would like to get some values on the server from a ListBox (HTML Cotrol populated on the Client)<BR>through Request.Form(i)? But, if the items on the ListBox are not selected, then are not availabe on the Server. So, the client script should select them before the page is posted back.<BR><BR>How do I inject the Client Javascript to the "onchange="__doPostBack(&#039;myControl&#039;,&#03 9;&#039;)" event procedure<BR>created on the server?<BR><BR>Thanks,<BR><BR>Matiur Rahman<BR><BR><BR><BR><BR><BR><BR><BR>