Emitting values in HTML...

Receipt.ascx

<h3 class="header-text" >Confirm your Contribution: </h3>
<p><b><asp:Literal ID="lName" runat="server" /></b>, thank you for your generosity! You are about to give a gift totalling <b><asp:Literal ID="lTotal" runat="server"/></b> to the following funds:</p>
<asp:Repeater ID="rptGifts" runat="server">
    <HeaderTemplate>
        <ul>
    </HeaderTemplate>
    <ItemTemplate>
        <li><%# Eval("Amount").ToString("C") %> to the <%# Eval("Fund") %>.</li>
    </ItemTemplate>
    <FooterTemplate>
        </ul>
    </FooterTemplate>
</asp:Repeater>
<p>Your gift will be paid using your <b><asp:Literal ID="lCardType" runat="server"/></b> credit card ending in <b><asp:Literal ID="lLastFour" runat="server"/></b>.</p>

Receipt.ascx.cs

protected void btnNext_Click( object sender, EventArgs e )
{
    var firstTrans = _transactions.First();
    lName.Text = person.FullName;
    lTotal.Text = _transactions.Sum( t => t.Amount ).ToString("C");
    lCardType.Text = firstTrans.CardType;
    lLastFour.Text = firstTrans.CardNumber.Substring( firstTrans.CardNumber.length - 4 );
    rptGifts.DataSource = _transactions;
    rptGifts.DataBind();
    pnlDetails.Visible = false;
    pnlConfirmation.Visible = true;
}