@Andrei was correct to use the ViewData.ModelMetadata
but had the syntax slightly off. The correct syntax is
@ViewData.ModelMetadata.Properties.First(x => x.PropertyName == "SiteAndJobDetails")
.Properties.SingleOrDefault(x => x.PropertyName == Model.SiteAndJobDetails.GetType().GetProperties()[i].Name)
.DisplayName
The final solution is to check the property exists, if it does use it, otherwise use the property name
@if (!string.IsNullOrEmpty(@ViewData.ModelMetadata.Properties.First(x => x.PropertyName == "SiteAndJobDetails").Properties.SingleOrDefault(x => x.PropertyName == Model.SiteAndJobDetails.GetType().GetProperties()[i].Name).DisplayName))
{
@ViewData.ModelMetadata.Properties.First(x => x.PropertyName == "SiteAndJobDetails").Properties.SingleOrDefault(x => x.PropertyName == Model.SiteAndJobDetails.GetType().GetProperties()[i].Name).DisplayName
}
else
{
@Model.SiteAndJobDetails.GetType().GetProperties()[i].Name
}