unable to get the items from sitecore using controller rendering & glassmapper

Question

I am trying to get the items from sitecore based on template id using controller rendering.i am using glass mapper also.but values are not passed in to model.finally i am getting null reference exception. here is my code.

model:

namespace demo.MVC.Models
{
    public class BlogItems 
    {  
      [SitecoreField("Title")]
      public virtual  string Title { get; set; }
      [SitecoreField("ThumbImage")]
      public virtual string ThumbImage { get; set; }
      [SitecoreField("EntryDate")]
      public virtual  string EntryDate { get; set; }  
    }

   [SitecoreQuery("/sitecore/Content/demomvc/Home//*[@@templateid='{C016F8F2-500C-41E0-8FC7-CB2450702EDB}']", IsRelative = false)]
   public class blogs
   {
     public virtual IEnumerable<BlogItems> blogpage{get;set;}
   }
}

Controller:

public class BindBlogsController : GlassController
{
    // GET: BindBlogs
    public ActionResult bind()
    {
       return view();
    }

View:

@using Sitecore.Mvc
@using Sitecore.Mvc.Presentation

@inherits Glass.Mapper.Sc.Web.Mvc.GlassView <demo.MVC.Models.blog>
@{
}

@foreach(var item in Model.blogPage)
{
    @Html.Sitecore().Field("Title", item)    
}

finally it shows the error

"System.NullReferenceException: Object reference not set to an instance of an object."

I am using glass mapper 4.2 version,

can anyone suggest how to retrieve the items from sitecore? Thanks in advance

Answer 1

An easy way for you to do that is have a base class like this:

public interface IBaseItem

{ [SitecoreId] Guid Id { get; set; }

[SitecoreChildren]
IEnumerable<Item> Children { get; set; }

[SitecoreInfo(SitecoreInfoType.Url, UrlOptions = SitecoreInfoUrlOptions.LanguageEmbeddingNever)]
string Url { get; set; }

[SitecoreInfo(SitecoreInfoType.Language, UrlOptions = SitecoreInfoUrlOptions.LanguageEmbeddingNever)]
Language Language { get; set; }

[SitecoreInfo(SitecoreInfoType.Version, UrlOptions = SitecoreInfoUrlOptions.LanguageEmbeddingNever)]
int Version { get; set; }

[SitecoreInfo(SitecoreInfoType.TemplateId)]
Guid TemplateId { get; set; }

[SitecoreInfo(SitecoreInfoType.BaseTemplateIds)]
IEnumerable<Guid> BaseTemplateIds { get; set; }

[SitecoreInfo(SitecoreInfoType.TemplateName)]
string TemplateName { get; set; }

[SitecoreInfo(SitecoreInfoType.Name)]
string Name { get; set; }

}

then you can make your class inherit from it and reuse on other classes you want to map. another thing I'm missing on your class is the attribute on your class like this:

[SitecoreType(TemplateId = "{A504745B-43E8-4594-B9B3-FACBB10FB29B}")]
public class BlogItems : IBaseItem
{ ..... }

Also as a suggestions: on your view you can use the Glass helper methods. Instead of this:

@Html.Sitecore().Field("Title", item)

you can have it strongly typed with your model:

 @Html.Glass().Editable(Model, x => x.Title)

hope this helps

Answer 2

Try the following:

public ActionResult bind()
{
    ISitecoreContext service = new SitecoreContext();
    var model = service.GetCurrentItem<blogs>();
    return View(model);
}