You can use a Repeater control in the ItemTemplate along with the DataBinder.Eval statement to populate the repeater.
Sample below:
<asp:ListView ID="listview1" runat="server" >
<ItemTemplate>
<asp:Repeater runat="server" ID="rptData" DataSource='<%# DataBinder.Eval(Container.DataItem, "columnname") %>'> </asp:Repeater>
</ItemTemplate>
</asp:ListView>