@using StringExtensions = LeafWeb.Core.Utility.StringExtensions
@model object
@{
    Layout = null;
    var lowerPropertyName = StringExtensions.LowercaseFirst(ViewData.ModelMetadata.PropertyName);

    var groupClass = $"form-group {lowerPropertyName}";

    if (ViewBag.groupClass != null)
    {
        groupClass = string.Concat(groupClass, " ", ViewBag.groupClass);
    }
}
<div class="@groupClass">
    @Html.LabelForModel()
    @RenderBody()
    @Html.ValidationMessage(string.Empty, new { @class = "text-danger"})
</div>