asp.net mvc 2 简简单单做开发 自定义Controller基类

　　以前使用asp.net时总是自定义一个基类来继承Page类，来实现一些页面中常用的操作来减少代码。asp.net mvc 2 里没有分页功能，就在基类里实现分页的功能吧，在页面中定义分页常用的变量，如 RecordCount、PageSize、CurPage等。通过GetPager() 把分页字符串赋给ViewData["Page"],view页面中直接输出ViewData["page"]。

    实例代码 BaseController.cs

 1  public class BaseController : Controller
 2     {
 3         //linq数据操作类db
 4         public DB db = new DB();
 5         public int RecordCount = 0;
 6         public int PageSize = 10;
 7       
 8         public int CurPage
 9         {
10             get
11             {
12                 return DNTRequest.GetInt("page", 1);
13             }
14         }
15         public void GetPager()
16         {
17             int PageCount = (int)Math.Ceiling(RecordCount/ ((double)PageSize));
18             ViewData["Page"] = Utils.GetPageNumbers(CurPage, PageCount, GetUrl(), 5);
19         }
20         public string GetUrl()
21         {
22             string url = Request.Url.ToString();
23             url = url.Substring(url.LastIndexOf("/") + 1);
24 
25             Regex reg = new Regex(@"&page=([0-9]+)", RegexOptions.IgnoreCase);
26             Match m = reg.Match(url);
27             if (m.Success)
28             {
29                 url = url.Replace(m.Groups[0].Value, "");
30             }
31             reg = new Regex(@"\?page=([0-9]+)", RegexOptions.IgnoreCase);
32             m = reg.Match(url);
33             if (m.Success)
34             {
35                 url = url.Replace(m.Groups[0].Value, "?1=1");
36             }
37             return url;
38         }
39     }

 

ArticleController.cs

 

 public class ArticleController : BaseController
    {
        protected override void OnResultExecuting(ResultExecutingContext filterContext)
        {
            var cate=db.Category.ToList();
            cate.Insert(0,new Category() {Id=0, Name="未设置"});
            ViewData["category"] = cate;
            base.OnResultExecuting(filterContext);
        
        }


       
        public ActionResult Index(Article art)
        {

            ViewData["searchModel"] = art;
            var article = db.Find<Article>(art);
            var list = db.Article.Where(d =>d.title.Contains("22"));
            RecordCount = article.Count();
            article = article.Skip((CurPage - 1) * PageSize).Take(PageSize);
            GetPager();
            return View("index", article);
        }

        //public ActionResult Index()
        //{
        //    ViewData["searchModel"] = new Article();
        //    var article = from d in db.Article
        //                  select d;
        //    RecordCount = article.Count();
       
        //    article = article.Skip((CurPage-1)*PageSize).Take(PageSize);
        //    GetPager();
        //    return View("index",article);

        //}
        public ActionResult Add()
        {
            Article art = new Article();
            art.CreateTime = DateTime.Now;
            return View(art);
        }
        [HttpPost]
        [ValidateInput(false)]
        public ActionResult Add(Article art)
        {
            try
            {
                if (this.ModelState.IsValid)
                {
                    db.Article.InsertOnSubmit(art);
                    db.SubmitChanges();
                    return RedirectToAction("index");
                }
                else
                {
                    return View(art);
                }
            }
            catch(Exception e)
            {
                return Content(e.Message);
            }
           
        }
        public ActionResult Edit(int id)
        {
            return View(db.Article.FirstOrDefault(d=>d.Id==id));
        }
        [HttpPost]
        [ValidateInput(false)]
        public ActionResult Edit(int id,Article art1)
        {
            try
            {
                Article art=db.Article.FirstOrDefault(d=>d.Id==id);
                UpdateModel(art);
                db.SubmitChanges();
                return this.RedirectToAction("index");
            }
            catch
            {
                return View(art1);
            }
        }
        public ActionResult Delete(int id)
        {
           db.Article.DeleteOnSubmit(db.Article.FirstOrDefault(d => d.Id == id));
           db.SubmitChanges();
         return RedirectToAction("index");
        }

    }