1using System;
 2using System.Data;
 3using System.Configuration;
 4using System.Linq;
 5using System.Web;
 6using System.Web.Security;
 7using System.Web.UI;
 8using System.Web.UI.HtmlControls;
 9using System.Web.UI.WebControls;
10using System.Web.UI.WebControls.WebParts;
11using System.Xml.Linq;
12using System.Collections.Generic;
13
14namespace MvcArticleDemo.Models
15...{
16    
17        public class ArticlesEditViewData
18        ...{
19            public Article article ...{ get; set; }
20            public List<Categories> categories ...{ get; set; }
21            
22        }
23
24        public class ArticlesNewViewData
25        ...{
26            public List<Categories> categories ...{ get; set; }
27        } 
28    
29}
30