Kentico: Bizform in Transformation with conditional visibility of repeater content

bizform-transformation.ascx

<script runat="server">
  protected override void OnDataBinding(EventArgs e)
  {
    ModalBizForm.FormName = Eval<string>("HorizontalCTABizform");
    ModalBizForm.ReloadData();
  }
</script>

<div class="col-12 col-md-6 col-lg-4 mb-3 mb-lg-0">
  <asp:placeholder runat="server" Visible='<%# Eval<string>("HorizontalCTADisplayAs") == "link" %>'>
    <a class="btn btn-lg btn-secondary text-uppercase w-100" href="<%# Eval("HorizontalCTALink") %>">
      <%# Eval("HorizontalCTALinkText") %>
    </a>
  </asp:placeholder>
  
  <asp:placeholder runat="server" Visible='<%# Eval<string>("HorizontalCTADisplayAs") == "modal" %>'>
    <button type="button" class="btn btn-lg btn-secondary text-uppercase w-100" data-toggle="modal" data-target="#cta-form-modal-<%# Eval("Data_HorizontalCTAID") %>">
      <%# Eval("HorizontalCTAButtonText") %>
    </button>
    <div class="modal fade" id="cta-form-modal-<%# Eval("Data_HorizontalCTAID") %>" tabindex="-1" role="dialog" aria-labelledby="cta-form-modal-<%# Eval("Data_HorizontalCTAID") %>-title" aria-hidden="true">
      <div class="modal-dialog modal-dialog-centered" role="document">
        <div class="modal-content">
          <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal" aria-label="Close">
              <span aria-hidden="true">×</span>
            </button>
          </div>
          <div class="modal-body links-white headings-white">
            <div class="text-center mb-4">
              <h4 class="font-weight-bold" id="cta-form-modal-<%# Eval("Data_HorizontalCTAID") %>-title">Retirement Home Equity Inquiry</h4> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Beatae dignissimos inventore deleniti accusamus quo.
            </div>
            <!-- bizform -->
            <cms:BizForm ID="ModalBizForm" runat="server" Visible='<%# Eval<string>("HorizontalCTADisplayAs") == "modal" %>' />
          </div>
        </div>
      </div>
    </div>
  </asp:placeholder>
  
  <asp:placeholder runat="server" Visible='<%# Eval<string>("HorizontalCTADisplayAs") == "text" %>'>
    <span class="btn btn-lg btn-outline-green-dark text-uppercase w-100">
      <%# Eval("HorizontalCTAStyledText") %>
    </span>
  </asp:placeholder>
</div>