/// <summary>生成分页Html</summary>
/// <param name="helper">对象</param>
/// <param name="pager">分页数据</param>
/// <param name="func">Url生成函数</param>
/// <returns>分页Html</returns>
public static MvcHtmlString Pager(this HtmlHelper helper, PagerModel pager, Func <int, string> func)
{
var sb = new StringBuilder();
sb.Append("<div class=\"pager\">");
if (pager.CurrentPage < 2)
{
sb.Append("<a class=\"disabled first-child\"><< 上一页</a>");
}
else
{
sb.Append("<a class=\"first-child\" href=\"" + func(pager.CurrentPage - 1) + "\"><< 上一页</a>");
}
if (pager.TotalPage < 12)
{
for (var index = 1; index <= pager.TotalPage; index++)
{
if (index == pager.CurrentPage)
{
sb.Append("<a class=\"current\">" + index + "</a>");
}
else
{
sb.AppendFormat("<a href=\"{0}\">{1}</a>", func(index), index);
}
}
}
else
{
if (pager.CurrentPage < 8)
{
for (var index = 1; index <= 8; index++)
{
if (index == pager.CurrentPage)
{
sb.Append("<a class=\"current\">" + index + "</a>");
}
else
{
sb.AppendFormat("<a href=\"{0}\">{1}</a>", func(index), index);
}
}
sb.Append("<span>...</span>");
sb.AppendFormat("<a href=\"{0}\">{1}</a>", func(pager.TotalPage - 1), pager.TotalPage - 1);
sb.AppendFormat("<a href=\"{0}\">{1}</a>", func(pager.TotalPage), pager.TotalPage);
}
else if (pager.CurrentPage > pager.TotalPage - 7)
{
sb.Append("<a href=\"" + func(1) + "\">1</a>");
sb.Append("<a href=\"" + func(2) + "\">2</a>");
sb.Append("<span>...</span>");
for (var index = pager.TotalPage - 7; index <= pager.TotalPage; index++)
{
if (index == pager.CurrentPage)
{
sb.Append("<a class=\"current\">" + index + "</a>");
}
else
{
sb.AppendFormat("<a href=\"{0}\">{1}</a>", func(index), index);
}
}
}
else
{
sb.Append("<a href=\"" + func(1) + "\">1</a>");
sb.Append("<a href=\"" + func(2) + "\">2</a>");
sb.Append("<span>...</span>");
for (var index = pager.CurrentPage - 2; index <= pager.CurrentPage + 2; index++)
{
if (index == pager.CurrentPage)
{
sb.Append("<a class=\"current\">" + index + "</a>");
}
else
{
sb.AppendFormat("<a href=\"{0}\">{1}</a>", func(index), index);
}
}
sb.Append("<span>...</span>");
sb.AppendFormat("<a href=\"{0}\">{1}</a>", func(pager.TotalPage - 1), pager.TotalPage - 1);
sb.AppendFormat("<a href=\"{0}\">{1}</a>", func(pager.TotalPage), pager.TotalPage);
}
}
if (pager.CurrentPage >= pager.TotalPage)
{
sb.Append("<a class=\"disabled last-child\">下一页 >></a>");
}
else
{
sb.Append("<a class=\"last-child\" href=\"" + func(pager.CurrentPage + 1) + "\">下一页 >></a>");
}
sb.Append("</div>");
return(MvcHtmlString.Create(sb.ToString()));
}
public ListModel(PagerModel pager, IEnumerable <T> source)
{
this.Pager = pager;
this.Source = source;
}
public ListModel(IEnumerable <T> source, PagerModel pager)
{
this.Source = source;
this.Pager = pager;
}
public ListModel(PagerModel pager)
{
this.Pager = pager;
}