Hi I am using umbraco 7.2.1 and I am trying to validate my model, but after the post back I don't get any validation for my checkbook or file. The validation works but it's not showing the errors after a post back, the client validations works fine.

this is my model

 public class FileContactViewModel
{
    [UmbracoRequired(ErrorMessageDictionaryKey = "Required", PropertyDictionaryKey = "Name")]
    public string Name { get; set; }
    [UmbracoRequired(ErrorMessageDictionaryKey = "Required", PropertyDictionaryKey = "Email")]
    [UmbracoEmail(ErrorMessageDictionaryKey = "InvalidEmail", PropertyDictionaryKey = "Email")]
    public string Email { get; set; }
    [UmbracoRequired(ErrorMessageDictionaryKey = "Required", PropertyDictionaryKey = "File")]
    [FileSize(102400)]
    [FileTypes("doc,docx,jpeg,jpg,pdf")]
    public HttpPostedFileBase File { get; set; }
    [UmbracoMustBeTrue(ErrorMessageDictionaryKey = "Required", PropertyDictionaryKey = "Terms")]
    public bool TermsAndConditions { get; set; }    
}

this is the controller

[HttpPost]
    public ActionResult SendDocFile(FileContactViewModel model)
    {
        if (model.File.HasFile() && ModelState.IsValid)
        {
            try
            {
                var fileName = Path.GetFileName(model.File.FileName);
                var path = Path.Combine(Server.MapPath("~/media/"), fileName);
                model.File.SaveAs(path);
            }
            catch (Exception ex)
            {
                TempData["fileUploadStatus"] = "ERROR:" + ex.Message.ToString();
            }

            var message = new MailMessage(ConfigurationManager.AppSettings["EmailFrom"], ConfigurationManager.AppSettings["EmailTo"]);
            var client = new SmtpClient();

            message.Subject = "פניה מדף צור קשר";
            message.Body += "שם" + ": " + model.Name + "\n";
            message.Body += "אימייל" + ": " + model.Email + "\n";

            Attachment docFile = new Attachment(model.File.InputStream, model.File.FileName);
            message.Attachments.Add(docFile);

            client.Send(message);

            TempData["success"] = true;
        }
        return RedirectToCurrentUmbracoPage();
    }

and this is the view

    @inherits Umbraco.Web.Mvc.UmbracoViewPage<Umbraco710Source.Models.FileContactViewModel>
@using Umbraco710Source.Controllers

@{

}
@if (TempData["success"] == null)
{
    using (Html.BeginUmbracoForm("SendDocFile", "ContactSurface", new { @class = "post_form v_form_Hibur form-horizontal m_b_no_space", enctype = "multipart/form-data" }))
    {
        <ul class="post_form v_form_Hibur form-horizontal m_b_no_space">
            <li class="clearfix">
                <div class="fright half_column" style="padding-left: 15px;">
                    @Html.TextBoxFor(m => m.Name, new { @placeholder = "שם מלא" })
                    @*<input type="text" id="cf_name" name="cf_name" placeholder="שם" class="full_width">*@
                </div>
                <div class="fright half_column">
                    @Html.TextBoxFor(m => m.Email, new { @placeholder = "דואר אלקטרוני" })
                    @*<input type="text" id="cf_name" name="cf_name" placeholder="אימייל" class="full_width">*@
                </div>

                <div class="fright full_column">
                    @Html.CheckBoxFor(m => m.TermsAndConditions, new { @id = "Checkbox1" })
                    @*<input id="Checkbox1" type="checkbox" />*@
                    <label class="labelCheckbox">
                        <a href="/%D7%AA%D7%A7%D7%A0%D7%95%D7%9F-%D7%95%D7%AA%D7%A0%D7%90%D7%99-%D7%A9%D7%99%D7%9E%D7%95%D7%A9/">
                            מסכים לתקנון ולתנאי השימוש
                        </a>
                    </label>
                </div>
                <div class="fright full_column">
                    <input class="labelbrowse" type="file" name="file" />
                    <div id="file">צרף קובץ word, pdf או jpg</div>
                    @* <label class="labelbrowse">צרף קובץ וורד</label>*@
                    <button class="btn-small hibur">שלח</button>
                    <p class="cochavit">* ניתן לשלוח חיבור אחד בלבד לכל גולש</p>
                    @Html.ValidationMessageFor(m => m.Name)
                    @Html.ValidationMessageFor(m => m.Email)
                    @Html.ValidationMessageFor(m => m.TermsAndConditions)
                </div>
                <div>
                    @(TempData["fileUploadStatus"] = Html.ValidationMessageFor(m => m.File))
                    @TempData["fileUploadStatus"]
                </div>
            </li>
        </ul>
    }
}

I think that the issue is with

 RedirectToCurrentUmbracoPage()

method