.net 分页控件

(1)页面调用

<%=ViewData["GotoPage"]%>

(2)Controller 代码

 1             int pageSize = 8;
 2             int recordCount = 0;
 3             int pageIndex = FormHelper.GetInt("PageNo");
 4             pageIndex = pageIndex == 0 ? 1 : pageIndex;
 5             ViewData["pageIndex"] = pageIndex;
 6             Dictionary<String, Object> where = new Dictionary<string, object>();
 7             where.Add("IsCover", true);
 8             Dictionary<String, Object> like = new Dictionary<string, object>();
 9             IList<Simpletemplate> sList = SimpletemplateAPI.Instance.GetPagerList(where, null, null, pageSize, pageIndex, out recordCount);
10             ViewData["sList"] = sList;
11 
12             // 分页
13             PagerHelper page = new PagerHelper(pageIndex, pageSize, recordCount);
14             ViewData["Pager"] = page;
15             ViewData["RecordCount"] = recordCount;
16             string gotopage = HtmlWapHelper.PageGotoList(recordCount, pageSize, pageIndex, "/Template/Index/?1=1");
17             ViewData["GotoPage"] = gotopage;

(3)分页帮助类

  1  public class PagerHelper
  2     {
  3 
  4         public PagerHelper(int curpage, int psize, int tolrows, int pageRow)
  5         {
  6             _pageSize = psize;
  7             _currentPage = curpage;
  8             _totalRows = tolrows;
  9             _pageRow = pageRow;
 10         }
 11         public PagerHelper(int curpage, int psize, int tolrows)
 12         {
 13             _pageSize = psize;
 14             _currentPage = curpage;
 15             _totalRows = tolrows;
 16         }
 17 
 18         private int _pageSize = 10; //每页默认10条数据
 19         private int _pageRow = 10;  //每页显示分页数
 20         private int _currentPage = 1; //当前页
 21         private int _totalRows = 0; //总数据数
 22         private string _url = string.Empty;
 23         private Dictionary<string, string> _dic = new Dictionary<string, string>();//参数
 24         private string _squery = string.Empty;
 25         private string _urlstr = string.Empty;
 26         /// <summary>
 27         /// 每页数据条数
 28         /// </summary>
 29         public int PageSize
 30         {
 31             get
 32             {
 33                 return _pageSize;
 34             }
 35             set
 36             {
 37                 _pageSize = value;
 38             }
 39         }
 40         /// <summary>
 41         /// URL
 42         /// </summary>
 43         public string Url
 44         {
 45             get
 46             {
 47                 return _url;
 48             }
 49             set
 50             {
 51                 _url = value;
 52             }
 53         }
 54         public int TotalRows
 55         {
 56             get
 57             {
 58                 return _totalRows;
 59             }
 60         }
 61         /// <summary>
 62         /// 总页数
 63         /// </summary>
 64         public int TotalPages
 65         {
 66             get
 67             {
 68                 if ((_totalRows % _pageSize) == 0)
 69                 {
 70                     return (_totalRows / _pageSize);
 71                 }
 72                 return (_totalRows / _pageSize + 1);
 73             }
 74         }
 75 
 76         public int CurrentPage
 77         {
 78             get
 79             {
 80                 return _currentPage;
 81             }
 82         }
 83         /// <summary>
 84         /// 上一页
 85         /// </summary>
 86         public int PrevPage
 87         {
 88             get
 89             {
 90                 //int temp = _currentPage % _pageRow;
 91                 //return (_currentPage <= _pageRow? 1:(_currentPage-temp)+1);
 92                 if (_currentPage == 1)
 93                 {
 94                     return 1;
 95                 }
 96                 return _currentPage - 1;
 97             }
 98         }
 99         /// <summary>
100         /// 下一页
101         /// </summary>
102         public int NextPage
103         {
104             get
105             {
106                 //int temp = _currentPage + _pageRow - _currentPage % _pageRow + 1;
107                 //return (temp >= totalPages ? totalPages : temp);
108                 if (_currentPage > TotalPages)
109                 {
110                     return TotalPages;
111                 }
112                 return _currentPage + 1;
113 
114             }
115 
116         }
117         /// <summary>
118         /// 变量字典
119         /// </summary>
120         public Dictionary<string, string> Dic
121         {
122             set
123             {
124                 _dic = value;
125             }
126             get
127             {
128                 return _dic;
129             }
130         }
131 
132         public string Urlstr
133         {
134             get
135             {
136                 return string.Format("{0}?{1}", Url, Squery);
137             }
138         }
139 
140         public string Squery
141         {
142             get
143             {
144                 if (Dic.Count == 0)
145                 {
146                     return "";
147                 }
148                 _squery = string.Empty;
149                 foreach (string skey in Dic.Keys)
150                 {
151                     _squery = string.Format("{0}{1}={2}&", _squery, skey, Dic[skey]);
152                 }
153                 if (_squery.Length != 0)
154                 {
155                     _squery = _squery.Substring(0, _squery.Length - 1);
156                 }
157                 return _squery;
158             }
159         }
160         /// <summary>
161         /// 范围列表
162         /// </summary>
163         public List<int> ListNum
164         {
165             get
166             {
167                 List<int> _listnum = new List<int>();
168                 int divPageRow = _pageRow % 2 == 0 ? _pageRow / 2 : (int)(_pageRow / 2) + 1;
169 
170                 int startIndex = _currentPage <= divPageRow ? 1 : _currentPage - divPageRow + 1;
171 
172                 int endIndex = _currentPage >= TotalPages ? TotalPages : _currentPage + divPageRow - (_pageRow % 2 == 0 ? 0 : 1);
173                 if (_currentPage <= divPageRow)
174                 {
175                     endIndex = _pageRow >= TotalPages ? _pageRow : TotalPages;
176                 }
177                 if (_currentPage > _pageRow && TotalPages - startIndex < _pageRow)
178                 {
179                     startIndex = TotalPages - _pageRow + 1;
180                 }
181                 if (TotalPages > _pageRow && _currentPage <= divPageRow)
182                 {
183                     endIndex = _pageRow;
184                 }
185                 else if (endIndex >= TotalPages)
186                 {
187                     endIndex = TotalPages;
188                     startIndex = (endIndex - _pageRow + 1) < 1 ? 1 : (endIndex - _pageRow + 1);
189                 }
190                 for (int num = startIndex; num <= endIndex; num++)
191                 {
192                     _listnum.Add(num);
193                 }
194                 return _listnum;
195             }
196         }
197 
198     }
View Code

(4)获取分页html代码

    public class HtmlWapHelper
    {
        #region public static string PageGotoList(int totalNum, int pageSize, int currentPage, string reUrl)
        /// <summary>
        /// 获得分页Html代码
        /// </summary>
        /// <param name="totalNum">总条数</param>
        /// <param name="pageSize">每页显示的总条数</param>
        /// <param name="currentPage">当前页</param>
        /// <param name="reUrl">生成的url地址连接</param>
        /// <returns>分页Html代码</returns>
        public static string PageGotoList(int totalNum, int pageSize, int currentPage, string reUrl)
        {
            //计算总页数
            int totalPage = totalNum / pageSize;
            //如果超额页数+1
            if (totalNum % pageSize != 0)
            {
                totalPage = totalPage + 1;
            }
            //如果当前页小于1将赋值为1
            if (currentPage < 1) currentPage = 1;
            //如果当前页大于总页数将赋值为总页数
            if (currentPage > totalPage) currentPage = totalPage;

            int NextPage = 0;
            int PrevPage = 0;
            //int PageStart = 0;
            //int PageEnd = 0;
            StringBuilder PageStr = new StringBuilder();

            NextPage = currentPage + 1;
            PrevPage = currentPage - 1;

            //PageStart = (currentPage + 5) > totalPage ? totalPage - 9 : currentPage - 4;//中间页起始序号            
            //PageEnd = currentPage < 5 ? 10 : currentPage + 5;//中间页终止序号

            //if (PageStart < 1) { PageStart = 1; } //为了避免输出的时候产生负数，设置如果小于1就从序号1开始
            //if (totalPage < PageEnd) { PageEnd = totalPage; }//页码+5的可能性就会产生最终输出序号大于总页码，那么就要将其控制在页码数之内

            PageStr.AppendFormat(currentPage < totalPage ? "<a href=\"#{0}&PageNo={1}\" class=\"b\">下一页</a>" : "下一页", reUrl, NextPage.ToString());
            PageStr.AppendFormat(currentPage > 1 ? " <a href=\"#{0}&PageNo={1}\" class=\"b\">上一页</a> <a href=\"#{0}&PageNo=1\" class=\"b\">首页</a>" : " 上一页 首页", reUrl, PrevPage.ToString(), totalPage.ToString());
            PageStr.AppendFormat(" {0}/{1}页", currentPage, totalPage);

            return PageStr.ToString();
        }
        #endregion
}

　　

posted @ 2014-04-02 18:03  weide  阅读(206)  评论(0)  编辑  收藏  举报