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  • 分页:T-SQL存储过程和EF存储过程的使用

    首先准备好分页的T-SQL语句:

     1 create proc usp_activityFenYe
     2 @pageIndex int,
     3 @pageSize int,
     4 @pageCount int output
     5 as
     6 declare @count int
     7 begin
     8 select @count=COUNT(*) from Activity
     9 set @pageCount=CEILING(@count*1.0/@pageSize)
    10 select * from(select *,ROW_NUMBER()over(order by activityid) as num from Activity) as t
    11 where num between (@pageIndex-1)*@pageSize+1 and @pageIndex*@pageSize
    12 order by ActivityID asc
    13 end
    View Code

    ADO.NET操作:

    (1)DAL:

     1 public class ActivityDAL
     2     {
     3         public List<Activity> GetList(int pageIndex, int pageSize, out int pageCount)
     4         {
     5             SqlParameter[] pms = new SqlParameter[] { 
     6            new SqlParameter("@pageIndex",pageIndex),
     7            new SqlParameter("@pageSize",pageSize),
     8            new SqlParameter("@pageCount",0)
     9            };
    10             pms[2].Direction = ParameterDirection.Output;
    11             List<Activity> list = new List<Activity>();
    12             DataTable dt = DBHelper.ExecuteTableSP("usp_activityFenYe", pms);
    13             if (dt.Rows.Count > 0)
    14             {
    15                 Activity model = new Activity();
    16                 foreach (DataRow row in dt.Rows)
    17                 {
    18                     model = LoadEntity(row);
    19                     list.Add(model);
    20                 }
    21             }
    22             pageCount = Convert.ToInt32(pms[2].Value);
    23             return list;
    24         }
    25 
    26         private Activity LoadEntity(DataRow row)
    27         {
    28             Activity model = new Activity();
    29             model.ActivityID = Convert.ToInt32(row["ActivityID"]);
    30             model.Name = row["Name"].ToString();
    31             return model;
    32         }
    33     }

    (2)BLL:

     1 public class ActivityBLL
     2     {
     3         ActivityDAL dal;
     4         public ActivityBLL()
     5         {
     6             dal = new ActivityDAL();
     7         }
     8         public List<Activity> GetList(int pageIndex, int pageSize, out int pageCount)
     9         {
    10             return dal.GetList(pageIndex, pageSize, out pageCount);
    11         }
    12     }

    (3)View:

     1 public class ActivityController : Controller
     2     {
     3         ActivityBLL bll;
     4         DBEntities db;//数据上下文
     5         public ActivityController()
     6         {
     7             bll = new ActivityBLL();
     8             db = new DBEntities();
     9         }
    10         public ActionResult Index(int? pageIndex)
    11         {
    12             //1.ADO.NET
    13             int pageSize = 5;
    14             int pageCount;
    15             List<Model.Activity> list = bll.GetList(pageIndex ?? 1, pageSize, out pageCount);
    16             if (Request.IsAjaxRequest())
    17             {
    18                 return Json(list, JsonRequestBehavior.AllowGet);
    19             }
    20             ViewBag.pageCount = pageCount;//总页数
    21 
    22             //2.EF存储过程
    23             ObjectParameter obj = new ObjectParameter("pageCount", typeof(int));//注意:前面不要写@
    24             ObjectResult<usp_activityFenYe_Result> result = db.usp_activityFenYe(pageIndex ?? 1, pageSize, obj);//使用之前记得导入存储过程
    25             //ViewBag.pageCount = obj.Value;//EF传出的总页数
    26 
    27             //3.另外一种基于EF的方法
    28             SqlParameter pCount = new SqlParameter("pageCount", -1);//注意:前面不要写@
    29             pCount.Direction = System.Data.ParameterDirection.Output;
    30             SqlParameter pIndex = new SqlParameter("@pageIndex", 1);
    31             SqlParameter pSize = new SqlParameter("pageSize", 5);
    32             List<Models.Activity> data = db.Database.SqlQuery<Models.Activity>("exec usp_activityFenYe @pageIndex,@pageSize,@pageCount output", new object[] { pCount,pIndex,pSize}).ToList();
    33             return View(list);
    34         }
    35     }

    (4)Razor:

     1 @{
     2     Layout = null;
     3 }
     4 @model IEnumerable<Ado.Net.Model.Activity>
     5 <!DOCTYPE html>
     6 <html>
     7 <head>
     8     <meta name="viewport" content="width=device-width" />
     9     <title>Index</title>
    10     <link href="~/Content/bootstrap.min.css" rel="stylesheet" />
    11     <script src="~/Scripts/jquery-1.8.2.min.js"></script>
    12     <script>
    13         function show(index) {
    14             $.getJSON("@Url.Action("Index")", { pageIndex: index }).success(function (data) {
    15                 var text = "";
    16                 for (var i = 0; i < data.length; i++) {
    17                     text += "<tr><td>" + data[i].ActivityID + "</td><td>" + data[i].Name + "</td><td><a href='javascript:;' onclick='del(" + data[i].ActivityID + ")'>删除</a></td><td><a href='javascript:window.location.href=@Url.Action("Modify")?id=" + data[i].ActivityID + ")'>修改</a></td></tr>";
    18                 }
    19                 $("#table").html(text);
    20                 $(".pagination li").removeClass("active").eq(index - 1).addClass("active");
    21             })
    22         };
    23         function del(id) {
    24             if (confirm("确定删除")) {
    25                 $.post("@Url.Action("Del")", { id: id }).success(function (data) {
    26                     if (data.status == 200)
    27                         show(1);
    28                 })
    29             }
    30         };
    31     </script>
    32 </head>
    33 <body>
    34     <div class="container">
    35         <table class="table table-striped table-bordered">
    36             <thead>
    37                 <tr>
    38                     <th>活动ID</th>
    39                     <th>名称</th>
    40                     <th>操作</th>
    41                 </tr>
    42             </thead>
    43             <tbody id="table">
    44                 @foreach (var i in Model)
    45                 {
    46                     <tr>
    47                         <td>@i.ActivityID</td>
    48                         <td>@i.Name</td>
    49                         <td><a href="javascript:;" onclick="del(@i.ActivityID)">删除</a></td>
    50                         <td><a href="@Url.Action("Modify", new { id = i.ActivityID })">修改</a></td>
    51                     </tr>
    52                 }
    53             </tbody>
    54         </table>
    55         <nav>
    56             <ul class="pagination pagination-lg">
    57                 @for (int i = 1; i <= ViewBag.pageCount; i++)
    58                 {
    59                     <li @(i == 1 ? "class=active" : "")><a href="javascript:;" onclick="show(@i)">@i</a></li>
    60                 }
    61             </ul>
    62         </nav>
    63     </div>
    64 </body>
    65 </html>

     

    谢谢你长得这么好看还来看我的博客!
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  • 原文地址:https://www.cnblogs.com/hexd1230/p/4515665.html
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