Hello,

When i call a partial it complains the Model isn't IPublishedContent?

But when i tell my custom ViewModel to inherit from IPublishedContent like in the documentation, i get the following error:

Err: 'No parameterless constructor defined for this object.'

How do i fix this so i can use my partials?

Code below:

ViewModel:

public class MainViewModel : ContentModel
{
    //Constructor of MainViewModel
    public MainViewModel(IPublishedContent content) : base(content)
    {
        SiteSettings = new SiteSettingsViewModel();
        BusinessCentersData = new List<BusinessCenterDataViewModel>();
        BusinessCenterData = new BusinessCenterDataViewModel();
        SiteSettings = new SiteSettingsViewModel();
        UmbracoBusinessCenters = new UmbracoBusinessCentersViewModel();
        RawContent = RawContent;
        }

    //Independant View 
    public SiteSettingsViewModel SiteSettings { get; set; }
    public UmbracoBusinessCentersViewModel UmbracoBusinessCenters { get; set; }
    public List<BusinessCenterDataViewModel> BusinessCentersData { get; set; }
    public BusinessCenterDataViewModel BusinessCenterData { get; set; }
    public IPublishedContent RawContent {get; private set; }

    public string siteName { get; set; }
    public dynamic RootNode { get; set; }
}

Controller:

public ActionResult BusinessCenters(MainViewModel model)
    {
        try
        {

            using (var cref = _context.EnsureUmbracoContext())
            {
                //Content Cache
                //var cache = cref.UmbracoContext.Content;
                var cache = cref.UmbracoContext.Content;
                dynamic rootNode = cache.GetAtRoot();
                model.RootNode = rootNode;
                //Call Any Missing Umbraco Content
                IPublishedContent siteSettings = cache.GetSingleByXPath("//siteSettings");
                UmbracoContentBuilderClass siteSettingsModel = new UmbracoContentBuilderClass();
                model.SiteSettings = siteSettingsModel.PopulateSiteSettingsModel(siteSettings);

                IPublishedContent businessCenters = cache.GetSingleByXPath("//businessCenters");
                UmbracoContentBuilderClass businessCentersModel = new UmbracoContentBuilderClass();
                model.UmbracoBusinessCenters = businessCentersModel.PopulateBusinessCentersModel(businessCenters);



            }
                return PartialView("~/Views/thejourney/firstpage.cshtml", model);


        }
        catch (Exception e)
        {
            CustomLogger.Error($"ERROR: BusinessCenterListingsController.BusinessCenters (GET) {e}");
            throw;
        }

Partial:

@inherits UmbracoViewPage<officefreedom.AppCode.ViewModels.MainViewModel>
<div class="upper-nav-container col-xs-12 col-md-12">
@Html.Partial("~/Views/Partials/_Navigation.cshtml", Model.RawContent)