multiple datasource to single dropdownlist
<p>how do i set the multiple datasource to single dropdownlist?</p>

<pre><code> DrpPosition.ClearSelection();
        DrpPosition.DataSource = AdvertizeManager.GetList("", "", "", "");
        DrpPosition.DataTextField = "PNAME";
        DrpPosition.DataValueField = "ADID";
        DrpPosition.DataBind();
        DrpPosition.DataSource = CategoryManager.GetList("", "", "", "");
        DrpPosition.DataTextField = "NAME";
        DrpPosition.DataValueField = "CATID";
        DrpPosition.DataBind();
</code></pre>
