Insert Records in Database asynchronously (Parallel) in C# in ASP.Net

hello,

i have this listview, and click of a tag i want to aync insert the data into sql table please advice

<asp:ListView ID="ListView1" runat="server" DataSourceID="SqlDataSource2" OnItemDataBound="ListView1_ItemDataBound">
    <ItemTemplate>
        //onclick of a tag i want to async insert into database ("insertdate") <a data-toggle="collapse"
            href="#collapseExample<%#Container.DataItemIndex%>" aria-expanded="false" aria-controls="collapseExample">
            <asp:Label ID="Label23" runat="server" Text='<%# Eval("insertdate") %>' Visible="false"></asp:Label>
        </a>
    </ItemTemplate>
    <EmptyDataTemplate>
        <tr>
            <td colspan="14" class="padding">
                We're sorry, there are no results
            </td>
        </tr>
    </EmptyDataTemplate>
</asp:ListView>