asp.net自制分页页码条控件

public static class PageShow
{
/// <summary>
/// 分页页码条
/// </summary>
/// <param name="requestHref">请求的地址</param>
/// <param name="totalCount">数据总条数</param>
/// <param name="currentPage">当前页码</param>
/// <param name="pageSize">每页个数</param>
/// <returns></returns>
public static string Show(string requestHref, int totalCount, int currentPage, int pageSize)
{
//初始化pageSize和totalPages
pageSize = pageSize == 0 ? 6 : pageSize;//默认为每页显示6条数据
var totalPages = Math.Max((totalCount + pageSize - 1) / pageSize, 1);//Math.Ceiling(totalCount / (pageSize / 1.0));//使用Ceiling函数也可以，效果是一样的，根据数据的总条数和每页要显示的个数，计算出总页数，如：共有96条数据，每页显示6条，则总页数为16
var outPut = new StringBuilder();//构建输出字符串
outPut.AppendFormat("<div class='pagination'>");//所有的样式需要自定义
//当总页数大于一页才分页显示，否则直接显示出该页
if (totalPages > 1)
{
//当前页面不是第一页的时候显示首页链接
if (currentPage != 1)
{
outPut.AppendFormat("<a class='pageLink' href='{0}pageIndex=1&&pageSize={1}'>首页</a>"
, requestHref, pageSize);
}
//当前页面大于第一页的时候显示上一页链接
if (currentPage > 1)
{
outPut.AppendFormat("<a class='pageLink' href='{0}pageIndex={1}&&pageSize={2}'>上一页</a>"
, requestHref, currentPage - 1, pageSize);
}
//否则上一页无法点击
else
{
outPut.AppendFormat("<span class='disabled'>上一页</span>");
}
outPut.Append(" ");
//循环输出页面列表
const int currint = 3;
//最多有6个超链接，前3个后3个
for (int i = 0; i < 6; i++)
{
if (currentPage + i - currint >= 1 && currentPage + i - currint <= totalPages)
{
if (currint == i)
{
outPut.AppendFormat("<span class='disabled'>{0}</span>", currentPage + i - currint);
}
else
{
outPut.AppendFormat("<a class='pageLink' href='{0}pageIndex={1}&&pageSize={2}'>{3}</a>"
, requestHref, currentPage + i - currint, pageSize, currentPage + i - currint);
}
}
outPut.Append(" ");
}
if (currentPage < totalPages)
{
outPut.AppendFormat("<a class='pageLink' href='{0}pageIndex={1}&&pageSize={2}'>下一页</a>"
, requestHref, currentPage + 1, pageSize);
}
else
{
outPut.AppendFormat("<span class='disabled'>下一页</span>");
}
outPut.Append(" ");
if (currentPage != totalPages)
{
outPut.AppendFormat("<a class='pageLink' href='{0}pageIndex={1}&&pageSize={2}'>末页</a>"
, requestHref, totalPages, pageSize);
}
outPut.Append(" ");
}
outPut.AppendFormat("第{0}页/共{1}页", currentPage, totalPages);
outPut.AppendFormat("</div>");
return outPut.ToString();
}
}