The Error is: 

The model item passed into the dictionary is of type 'Castle.Proxies.XFormBlockProxy', but this dictionary requires a model item of type 'XXX.Models.ViewModels.XFormPageViewModel'.

at System.Web.Mvc.ViewDataDictionary`1.SetModel(Object value)
at System.Web.Mvc.ViewDataDictionary.set_Model(Object value)
at System.Web.Mvc.ViewDataDictionary..ctor(ViewDataDictionary dictionary)
at System.Web.Mvc.WebViewPage`1.SetViewData(ViewDataDictionary viewData)
at System.Web.Mvc.WebViewPage.set_ViewData(ViewDataDictionary value)
at System.Web.Mvc.RazorView.RenderView(ViewContext viewContext, TextWriter writer, Object instance)
at System.Web.Mvc.BuildManagerCompiledView.Render(ViewContext viewContext, TextWriter writer)
at EPiServer.Web.Mvc.ViewExtensions.Render[T](IView view, ViewEngineResult viewEngineResult, ViewContext context, TextWriter writer, T data)
at EPiServer.Web.Mvc.MvcContentRenderer.HandleRenderTemplateWithViewEngine(HtmlHelper helper, IContentData contentData, TemplateModel templateModel)
at EPiServer.Web.Mvc.MvcContentRenderer.Render(HtmlHelper helper, PartialRequest partialRequestHandler, IContentData contentData, TemplateModel templateModel)
at XXX.Business.Rendering.ErrorHandlingContentRenderer.Render(HtmlHelper helper, PartialRequest partialRequestHandler, IContentData contentData, TemplateModel templateModel)

Here is my code:

XFormBlock.cshtml

@using EPiServer.Web.Mvc.Html

@model XXX.Models.ViewModels.XFormPageViewModel

 

<div class="xformblock" @Html.EditAttributes(x => x.Schema)>

    @Html.ValidationSummary()

 

    @using (Html.BeginXForm(Model.Schema, new { Action = Model.ActionUri }))

    {

        Html.RenderXForm(Model.Schema);

    }

</div>

XFormBlock.cs

using System.ComponentModel.DataAnnotations;

using EPiServer.Core;

using EPiServer.DataAbstraction;

using EPiServer.DataAnnotations;

using EPiServer.XForms;

 

namespace GoConstruct.Models.Blocks

{

    [SiteContentType(GUID = "E6CE8FD6-DCA9-454C-B219-2C4D0DB9E17D",

       GroupName = Global.GroupNames.Phase1point5,

       DisplayName = "1.5 X-Form Block",

       Description = "Add a form to the site", Order = 37)]

    [SiteImageUrl("/Static/Gfx/blocks/form.jpg")]

    public class XFormBlock : SiteBlockData

    {

        [Display(

            GroupName = SystemTabNames.Content,

            Order = 1)]

        [CultureSpecific]

        public virtual string Heading { get; set; }

 

        [Display(

            GroupName = SystemTabNames.Content,

            Order = 2)]

        [CultureSpecific]

        public virtual XForm Schema { get; set; }

    }

}

XFormBlockController.cs

public class XFormBlockController : BaseBlockController<XFormBlock>

    {

      

        // GET: XFormBlock

       public override ActionResult Index(XFormBlock currentBlock)

        {

            var id = (currentBlock as IContent).ContentLink.ID;

 

            // ViewData is not automatically passed to a block controller, need to get it from TempData if it exists

            var viewDataKey = string.Format("TempViewData_{0}", id);

 

            if (this.TempData[viewDataKey] != null)

            {

                this.ViewData = (ViewDataDictionary)this.TempData[viewDataKey];

            }

 

            // Create the viewmodel

            var viewModel = new XFormPageViewModel(currentBlock, EpiServerDependencies)

            {

                Schema = currentBlock.Schema,

                Heading = currentBlock.Heading

            };

 

            var pageRouteHelper = ServiceLocator.Current.GetInstance<PageRouteHelper>();

            PageData currentPage = pageRouteHelper.Page;

 

            // Create postback url

            if (viewModel.Schema != null && currentPage != null)

            {

                var urlResolver = ServiceLocator.Current.GetInstance<UrlResolver>();

                var pageUrl = urlResolver.GetVirtualPath(currentPage.ContentLink);

 

 

                var actionUrl = string.Format("{0}XFormPost/", pageUrl);

                actionUrl = UriSupport.AddQueryString(actionUrl, "XFormId", viewModel.Schema.Id.ToString());

                actionUrl = UriSupport.AddQueryString(actionUrl, "failedAction", "Failed");

                actionUrl = UriSupport.AddQueryString(actionUrl, "successAction", "Success");

                actionUrl = UriSupport.AddQueryString(actionUrl, "contentId", id.ToString());

 

                viewModel.ActionUri = actionUrl;

            }

 

            var editHints = this.ViewData.GetEditHints<XFormPageViewModel, XFormBlock>();

            editHints.AddConnection(v => v.Schema, p => p.Schema);

 

            return this.PartialView(viewModel);

        }

    }

 

XFormPageViewModel.cs

using EPiServer.XForms;

using XXX.Models.Blocks;

using XXX.Models.ViewModels.Base;

using JonDJones.Com.Core;

public class XFormPageViewModel : BlockViewModel<XFormBlock>

    {

        public XFormPageViewModel(XFormBlock currentBlock, IEpiServerDependencies epiServerDependencies)

           : base(currentBlock, epiServerDependencies)

        {

 

        }

        public XForm Schema { get; set; }

 

        public string ActionUri { get; set; }

        public string Heading { get; set; }

    }

Can you let me know if you can see where I am going wrong?

Many thanks

Jon