C# 数字分页

/// <summary>
/// 获取页码HTML
/// </summary>
/// <param name="pageIndex">当前页索引（从0开始）</param>
/// <param name="pageCount">总共页数</param>
/// <param name="pageNumber">显示页码数</param>
/// <param name="url">页码连接（/list.aspx?page={0}）</param>
/// <returns></returns>
public static string GetPager(int pageIndex, int pageCount, int pageNumber, string url)
{
int start = pageIndex - pageNumber / 2;
int end = pageIndex + pageNumber / 2;
if (start < 0)
{
end -= start;
start = 0;
}
if (end > pageCount - 1)
{
start -= end - (pageCount - 1);
end = pageCount - 1;
}
start = Math.Max(1, start + 1);
end = Math.Min(end + 1, pageCount);

string link = "<a href='" + url + "'>{0}</a>";

StringBuilder sb = new StringBuilder();

for (int p = start; p <= end; p++)
{
if (p == pageIndex + 1) sb.AppendFormat("<b>{0}</b>", p);
else sb.AppendFormat(link, p);
}
return sb.ToString();
}

注：该方法应配合分页存储过程使用（当然直接写sql语句也可以）。
示例：string pager = GetPager(3, 9, 5, "list.aspx?p={0}");
Response.Write(pager);
输出结果如下： 2 3 4 5 6