How to Preserve Controls on PostBack

Halo guys, 

i have a div tag in aspx page..

 <div id="KeywordSearchResult" runat="server">


and inside the div tag i am binding controls dynamically on a Button Click..

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click

Featured = LoadControl("CaseDataList.ascx")
Dim tempdatalist As New LinkButton
tempdatalist = Featured.FindCon ...