public void RenderPager()
{
if (urlManager == null)
throw new ArgumentNullException("IUrlManager 不能为 Null");
PagerString += "<div class=\"" + CssClass + "\">";
// 获取当前页
currentPage = urlManager.CurrentPageIndex;
// 获取总页数
pageCount = urlManager.PageCount;
SetStartPage();
SetEndPage();
PageLink link;
// 循环打印链接
for (int i = startPage; i <= endPage; i++)
{
// 如果需要显示前一页、第一页链接
if (showPrevious)
{ AddPreviousLink(urlManager); }
link = new PageLink();
if (i == currentPage)
{ link.Css = "CurrentPage"; }
link.Text = i.ToString();
link.Url = urlManager.GetPageUrl(i);
AddLinkToPagerString(link);
// 如果需要显示 下一页、最末页 链接
if (i == endPage && showNext)
{ AddNextLink(urlManager); }
}
PagerString += String.Format(" <span>( 第<b>{0}</b>页/共<b>{1}</b>页 )</span>", currentPage, pageCount);
PagerString += "</div>";
}
// 添加“第一页”，“上一页”的连接
private void AddPreviousLink(UrlManager urlManager)
{
PageLink first = new PageLink();
first.Css = "PagerIcon";
first.Text = "<<";
first.Url = urlManager.GetPageUrl(1);
AddLinkToPagerString(first);
PageLink previous = new PageLink();
previous.Css = "PagerIcon";
previous.Text = "<";
previous.Url = urlManager.GetPageUrl(currentPage - 1);
AddLinkToPagerString(previous);
showPrevious = false; // 只显示一次
}
public void AddLinkToPagerString(PageLink link)
{
PagerString += "<a class=\"" + link.Css + "\" href=\"" + link.Url + "\">" + link.Text + "</a>";
}
// 添加 “下一页”、“最末页” 的链接
private void AddNextLink(UrlManager urlManager)
{
PageLink next = new PageLink();
next.Css = "PagerIcon";
next.Text = ">";
next.Url = urlManager.GetPageUrl(currentPage + 1);
AddLinkToPagerString(next);
PageLink last = new PageLink();
last.Css = "PagerIcon";
last.Text = ">>";
last.Url = urlManager.GetPageUrl(pageCount);
AddLinkToPagerString(last);
showNext = false; // 可有可无，程序会跳出循环
}
