一个写好的分页字符串的类

  这是写好的一个分页字符串的类，直接调用，生成分页字符串后之后显示到前台页面即可

  其中GetList()是我在前台页面自己写的js方法，用于从后台取分页数据。第一个参数是pageindex，第二个参数是业务需求，需要写序号，可根据自己需要忽略此参数（将此参数去掉就行）。
  
  1 public class PagerHelper
  2     {
  3         public static string GetNumericPage(int pageIndex,int pageCount)
  4         {
  5             StringBuilder sb = new StringBuilder();
  6             if (pageIndex != 1)
  7             {
  8                 sb.Append("<a href='javascript:GetList(1,0)'>首页</a>");
  9                 sb.Append("<a href='javascript:GetList(" + (pageIndex - 1) + "," + (pageIndex - 1 - 1) * 10 + ")'>上一页</a>");
 10             }//1 2 3 4 5
 11             else
 12             {
 13                 sb.Append("<button disabled='disabled' >首页</button>");
 14                 sb.Append("<button value='上一页' disabled='disabled' >上一页</button>");
 15 
 16             }
 17           
 18             if (pageCount <= 5)
 19             {
 20                 for (int i = 1; i <= pageCount; i++)
 21                 {
 22                     //如果数字是与当前页索引相同，则不加超链接
 23                     if (pageIndex == i)
 24                     {
 25                         sb.Append(i + " ");
 26                     }
 27                     else
 28                     {
 29                         sb.Append("<a href='javascript:GetList(" + i + "," + (i - 1) * 10 + ")'>" + i + "</a> ");
 30                     }
 31                 }
 32             }
 33             else//总页面数大于5时，走下面的逻辑
 34             {
 35                 //1 ... 4 5 6 ... 10
 36 
 37                 //特例：1,pc
 38                 if (pageIndex == 1)//第1页
 39                 {
 40                     sb.Append("1 ");
 41                     for (int i = 2; i <= 4; i++)
 42                     {
 43                         sb.Append("<a href='javascript:GetList(" + i + "," + (i-1) * 10  + ")'>" + i + "</a> ");
 44                     }
 45                     sb.Append("... <a href='javascript:GetList(" + pageCount + "," + (pageCount - 1) * 10 + ")'>" + pageCount + "</a>");
 46                 }
 47                 else if (pageIndex == pageCount)//最后一页
 48                 {
 49                     sb.Append("<a href='javascript:GetList(1,0)'>1</a> ... ");
 50                     for (int i = pageCount - 3; i < pageCount; i++)
 51                     {
 52                         sb.Append("<a href='javascript:GetList(" + i + "," + (i - 1) * 10 + ")'>" + i + "</a> ");
 53                     }
 54                     sb.Append(pageCount);
 55                 }
 56                 else if (pageIndex == 2)
 57                 {
 58                     //1 2 3 4 ...10
 59                     sb.Append("<a href='javascript:GetList(1,0)'>1</a> ");
 60                     sb.Append(pageIndex + " ");
 61                     sb.Append("<a href='javascript:GetList(3," + (3 - 1) * 10 + ")'>3</a> ");
 62                     sb.Append("<a href='javascript:GetList(4," + (4 - 1) * 10 + ")'>4</a> ");
 63                     sb.Append("... <a href='javascript:GetList(" + pageCount + "," + (pageCount - 1) * 10 + ")'>" + pageCount + "</a>");
 64                 }
 65                 else if (pageIndex == 3)
 66                 {
 67                     //1 2 3 4 ...10
 68                     sb.Append("<a href='javascript:GetList(1,0)'>1</a> ");
 69                     sb.Append("<a href='javascript:GetList(" + 2 + "," + (2 - 1) * 10 + ")'>2</a> ");
 70                     sb.Append(pageIndex + " ");
 71                     sb.Append("<a href='javascript:GetList(" + 4 + "," + (4 - 1) * 10 + ")'>4</a> ");
 72                     sb.Append("... <a href='javascript:GetList(" + pageCount + "," + (pageCount - 1) * 10 + ")'>" + pageCount + "</a>");
 73                 }
 74                 else if (pageIndex == (pageCount - 1))
 75                 {
 76                     sb.Append("<a href='javascript:GetList(1,0)'>1</a> ...");
 77                     sb.Append("<a href='javascript:GetList(" + (pageIndex-2) + "," + (pageIndex - 2 - 1) * 10 + ")'>" + (pageIndex - 2) + "</a> ");
 78                     sb.Append(" <a href='javascript:GetList(" + (pageIndex - 1) + "," + (pageIndex - 1 - 1) * 10 + ")'>" + (pageIndex - 1) + "</a> ");
 79                     sb.Append(pageIndex + " ");
 80                     sb.Append(" <a href='javascript:GetList(" + pageCount + "," + (pageCount - 1) * 10 + ")'>" + pageCount + "</a>");
 81 
 82                 }
 83                 else if (pageIndex == (pageCount - 2))
 84                 {
 85                     sb.Append("<a href='javascript:GetList(1,0)'>1</a> ...");
 86                     sb.Append("<a href='javascript:GetList(" + (pageIndex - 1) + "," + (pageIndex - 1 - 1) * 10 + ")'>" + (pageIndex - 1) + "</a> ");
 87                     sb.Append(pageIndex + " ");
 88                     sb.Append(" <a href='javascript:GetList(" + (pageIndex + 1) + "," + (pageIndex + 1 - 1) * 10 + ")'>" + (pageIndex + 1) + "</a> ");
 89                     sb.Append(" <a href='javascript:GetList(" + pageCount + "," + (pageCount - 1) * 10 + ")'>" + pageCount + "</a>");
 90                 }
 91                 else
 92                 {
 93                     sb.Append("<a href='javascript:GetList(1,0)'>1</a> ...");
 94                     sb.Append("<a href='javascript:GetList(" + (pageIndex - 1) + "," + (pageIndex - 1 - 1) * 10 + ")'>" + (pageIndex - 1) + "</a> ");
 95                     sb.Append(pageIndex + " ");
 96                     sb.Append("<a href='javascript:GetList(" + (pageIndex + 1) + "," + (pageIndex + 1 - 1) * 10 + ")'>" + (pageIndex + 1) + "</a> ");
 97                     sb.Append("... <a href='javascript:GetList(" + pageCount + "," + (pageCount - 1) * 10 + ")'>" + pageCount + "</a>");
 98                 }
 99             }
100             if (pageIndex != pageCount)
101             {
102                 sb.Append("<a href='javascript:GetList(" + (pageIndex + 1) + "," + (pageIndex + 1 - 1) * 10 + ")'>下一页</a>");
103                 sb.Append("<a href='javascript:GetList(" + pageCount + "," + (pageCount - 1) * 10 + ")'>尾页</a>");
104             }
105             if (pageIndex == pageCount)
106             {
107                 sb.Append("<button disabled='disabled' >下一页</button>");
108                 sb.Append("<button disabled='disabled' >尾页</button>");
109 
110             }
111             sb.Append("      当前第"+pageIndex+"页 共"+pageCount+"页");
112             sb.Append("                   &nbsp;&nbsp;&nbsp;<a href='javascript:Jump();'>跳转至</a>");
113             sb.Append("<input type='text' id='inputpage' style='width:20px;height:17px;'/>&nbsp;页");
114             return sb.ToString();
115         }
116     }
 最后的这个Jump（）方法也是在前台自己写的js方法，用于获取文本框中的数据然后调用GetList()方法进行跳转分页。
 需要给传到页面的这个分页字符串引入一个Css样式文件 <p class="page_nav">
 样式文件PageBar.css代码如下：

body {
}
.page_nav{clear:both; padding:15px 0; color:#666; font:normal 12px/24px Arial; text-align:center;}
.page_nav a{display:inline-block; height:22px; margin:0 2px; padding:0 8px; text-decoration:none; border:solid 1px #dbe5ee; -moz-border-radius:2px; -webkit-border-radius:2px; -khtml-border-radius:2px; border-radius:2px; background:#fff; color:#333; font:normal 12px/22px Arial, Helvetica, sans-serif; cursor:pointer;}
.page_nav strong{display:inline-block; height:24px; margin:0 3px; padding:0 8px; border:none; -moz-border-radius:2px; -webkit-border-radius:2px; -khtml-border-radius:2px; border-radius:2px; background:#C00; color:#fff; font-weight:normal; line-height:24px; text-decoration:none;}
.page_nav a:hover,
.page_nav a.on{height:24px; margin:0 3px; border:none; background:#C00; color:#fff; line-height:24px; text-decoration:none;}
.page_nav a.select{cursor:default;}
.page_nav .view_all{display:block; text-align:center;}
.page_nav .view_all a{height:auto; margin:0; padding:0; border:none; color:#06c; line-height:24px;}
.page_nav .view_all a:hover{height:auto; margin:0; padding:0; background:none;}

效果图：