yavsc/Yavsc/Views/Shared/Components/Bill/Default.cshtml

@model IBillable
<div class="bill">
@if (ViewBag.BillFileInfo.Exists) {
<a class="btn btn-link" href="~/api/bill/facture-@(ViewBag.BillingCode)-@(Model.Id).pdf" >La facture au format Pdf</a>
} else {
<form action="~/api/bill/genpdf/@ViewBag.BillingCode/@Model.Id" method="POST">
    <input class="btn btn-default" type="submit" value="Générer la facture au format Pdf"/>
</form>
}
</div>