ASP.NET MVC5 实现分页查询的示例代码

//数据总量int dataCount;//每页显示的数据条数int pageDataCount;int pageNumber;

//总页数int pageCount = (int)Math.Ceiling(dataCount/ (pageDataCount* 1.0));int startLine = (pageNumber - 1) * PageDataCount + 1;int endLine=startLine + PageDataCount - 1;

protected IDbConnection CreateConnection(){  IDbConnection dbConnection = new SqlConnection(ConnectionString);  dbConnection.Open();  return dbConnection;}//获取数据库中数据的总条数public virtual int QueryDataCount(string tableName){  using (IDbConnection dbConnection = CreateConnection())  {    var queryResult = dbConnection.Query<int>("select count(Id) from " + tableName);    if (queryResult == null || !queryResult.Any())    {      return 0;    }    return queryResult.First();  }}public virtual IEnumerable<T> RangeQuery<T>(string tableName, int startline, int endline){  if (string.IsNullOrEmpty(tableName))  {    throw new ArgumentNullException("表名不得为空或null");  }  if (startline <= 0)  {    throw new ArgumentOutOfRangeException("起始行号必须大于0");  }  if (endline - startline < 0)  {    throw new ArgumentOutOfRangeException("结束行号不得小于起始行号");  }  using (IDbConnection dbConnection = CreateConnection())  {    var queryResult = dbConnection.Query<T>("select top " + (endline - startline + 1) + " * from " + tableName + " where Id not in (select top " + (startline - 1) + " Id from " + tableName + " order by Id desc) order by Id desc");    if (queryResult != null && queryResult.Any())    {      return queryResult;    }  }  return null;}

@*  amount：数据总数，count：每页显示的数据条数，redierctUrl点击按钮时的跳转链接  页面上需引用：bootstrap.min.css*@@helper CreatePaginateButton(int amount, int count, string redirectUrl){  <div id="pagenumber" style="position:fixed;bottom:-15px;text-align:center;width:84%">    <nav style="text-align:center">      <ul class="pagination">        <li><a href="@redirectUrl/1" rel="external nofollow" >首页</a></li>        @{          int pageNumber = (int)Math.Ceiling(amount / (count * 1.0));          pageNumber = pageNumber < 1 ? 1 : pageNumber;          //页面上显示的按钮数目（不计首页、末页、上一页、下一页等按钮），若页面总数超过该值则绘制按钮分隔符          const int BUTTON_COUNT = 7;          // 按钮分隔符          const string BUTTON_SEPARATOR = "......";          //按钮分隔符左侧按钮数目（不计首页、末页、上一页、下一页等按钮）          const int LEFT_BUTTON_COUNT = 4;          //按钮分隔符右侧按钮数目（不计首页、末页、上一页、下一页等按钮）          const int RIGHT_BUTTON_COUNT = 2;          string[] urlSegments = Request.Url.Segments;          int selectedIndex = 0;          int.TryParse(urlSegments[urlSegments.Length - 1], out selectedIndex);          int previous = (selectedIndex - 1) <= 0 ? 1 : selectedIndex - 1;          int next = (selectedIndex + 1 > pageNumber) ? pageNumber : selectedIndex + 1;          var r=Request.Cookies[""];          if (pageNumber > BUTTON_COUNT)          {        <li><a id="next" href="@redirectUrl/@previous" rel="external nofollow" >上一页</a></li>            for (int i = 1; i <= BUTTON_COUNT; i++)            {              if ( selectedIndex >= LEFT_BUTTON_COUNT && selectedIndex%LEFT_BUTTON_COUNT==0 && i <= LEFT_BUTTON_COUNT)              {        <li><a name="pageButton" id="@selectedIndex" href="@redirectUrl/@selectedIndex" rel="external nofollow" >@selectedIndex</a></li>                int step = selectedIndex;                int tag = 0;                for (i = 1; i <= LEFT_BUTTON_COUNT; i++)                {                  tag = i + step;                  if (tag > pageNumber - RIGHT_BUTTON_COUNT)                  {                    if (i <= LEFT_BUTTON_COUNT)                    {                      i = LEFT_BUTTON_COUNT + 1;                    }                    break;                  }        <li><a name="pageButton" id="@tag" href="@redirectUrl/@tag" rel="external nofollow" rel="external nofollow" >@tag</a></li>                }              }              else if (i <= LEFT_BUTTON_COUNT && selectedIndex<LEFT_BUTTON_COUNT)              {        <li><a name="pageButton" id="@i" href="@redirectUrl/@i" rel="external nofollow" rel="external nofollow" >@i</a></li>              }              else if (i < LEFT_BUTTON_COUNT && selectedIndex>LEFT_BUTTON_COUNT)              {                int step = selectedIndex / LEFT_BUTTON_COUNT;                int tag = 0;        <li><a name="pageButton" id="@(step*LEFT_BUTTON_COUNT)" href="@redirectUrl/@(step*LEFT_BUTTON_COUNT)" rel="external nofollow" >@(step*LEFT_BUTTON_COUNT)</a></li>                for (i = 1; i <= LEFT_BUTTON_COUNT; i++)                {                  tag = i + step * LEFT_BUTTON_COUNT;                  if (tag > pageNumber - RIGHT_BUTTON_COUNT)                  {                    if (i <= LEFT_BUTTON_COUNT)                    {                      i = LEFT_BUTTON_COUNT + 1;                    }                    break;                  }        <li><a name="pageButton" id="@tag" href="@redirectUrl/@tag" rel="external nofollow" rel="external nofollow" >@tag</a></li>                }              }              //绘制按钮分隔符右侧按钮              if (i==BUTTON_COUNT-1)              {        <li><a name="pageButton" id="@(pageNumber-1)" href="@redirectUrl/@(pageNumber-1)" rel="external nofollow" >@(pageNumber-1)</a></li>              }              else if(i==BUTTON_COUNT)              {        <li><a name="pageButton" id="@pageNumber" href="@redirectUrl/@pageNumber" rel="external nofollow" rel="external nofollow" >@pageNumber</a></li>              }              //绘制按钮分隔符              else if (i >= BUTTON_COUNT -RIGHT_BUTTON_COUNT)              {        <li><span name="pageButton">@BUTTON_SEPARATOR</span></li>              }            }        <li><a id="next" href="@redirectUrl/@next" rel="external nofollow" >下一页</a></li>          }          else          {            for (int i = 1; i <= pageNumber; i++)            {        <li><a name="pageButton" id="@i" href="@redirectUrl/@i" rel="external nofollow" rel="external nofollow" >@i</a></li>            }          }        }        <li><a href="@redirectUrl/@pageNumber" rel="external nofollow" rel="external nofollow" >末页</a></li>      </ul>    </nav>  </div>  <script>    $(function () {      //设置被选中按钮的背景色      var selected = $('#@selectedIndex');      if (selected != undefined) {        selected.css('background-color', '#E1E1E1');      }  </script>}

@PageHelper.CreatePaginateButton(246, 10, "/usermanager/attentionlist/")