u can display vertical using table structure inside item template pls see following i hope it's help you
<asp:listview id="ProvidersListView" runat="server" datasourceid="sdsAttachedUsers" onitemdatabound="ProvidersListView_ItemDataBound">
<itemtemplate>
<table>
<tr><td>Image</td></tr>
<tr><td>Linkbutton</td></tr>
<tr><td>label</td></tr>
</table>
</itemtemplate>
</asp:listview>