asp.net 分页链接方法

复制代码 代码如下:
/// <summary>
/// 分页链接
/// </summary>
/// <param name="pageSize"></param>
/// <param name="recordCount"></param>
/// <param name="currentPage"></param>
/// <param name="prev">当前页前面显示的数量</param>
/// <param name="next">当前页后面显示的数量</param>
/// <returns></returns>
public string PageLink(int pageSize, int recordCount, int currentPage, int prev, int next)
{
int pageCount = recordCount % pageSize == 0 ? (recordCount / pageSize) : ((int)Math.Ceiling((double)recordCount / pageSize));
StringBuilder sb = new StringBuilder();
if (currentPage > 1 && recordCount > 1)
{
sb.Append("<a href=\"?page=");
sb.Append((currentPage - 1).ToString());
sb.Append("\">前一页</a>&nbsp;&nbsp;");
}
if (currentPage > prev + 1)
sb.Append("<a href=\"?page=1\">1</a>&nbsp;...&nbsp;");
if (currentPage < prev)
next = next + prev - currentPage + 1;
if (next > pageCount - currentPage)
prev = prev + next - (pageCount - currentPage);
for (int i = 1; i <= pageCount; i++)
{
if (i == currentPage)
{
sb.Append("<a href=\"?page=" + i + "\" class=\"current\" ><font color=\"red\">" + i + "</font></a>&nbsp;&nbsp;");
}
else
{
if (i > (currentPage - prev - 1) && i < (currentPage + next + 1))
{
sb.Append("<a href=\"?page=" + i + "\">" + i + "</a>&nbsp;&nbsp;");
}
}
}
if (currentPage < pageCount - next)
sb.Append("...&nbsp;<a href=\"?page=" + pageCount.ToString() + "\">" + pageCount.ToString() + "</a>");
if (currentPage < pageCount)
sb.Append("&nbsp;&nbsp;<a href=\"?page=" + (currentPage + 1).ToString() + "\">后一页</a>");
return sb.ToString();
}