public static MvcHtmlString AjaxPaging(this HtmlHelper hh, Pager pager, string actionName, string controllerName, AjaxPagingOption option, RouteValueDictionary routeValues)
{
if (option == null)
{
option = new AjaxPagingOption();
}
if (routeValues == null)
{
routeValues = new RouteValueDictionary();
}
TagBuilder div = new TagBuilder("div");
div.MergeAttribute("class", "pager");
StringBuilder sb = new StringBuilder();
routeValues["page"] = pager.Cur;
string hidRefreshUrl = UrlHelper.GenerateUrl(null, actionName, controllerName, routeValues, hh.RouteCollection, hh.ViewContext.RequestContext, true);
sb.AppendLine(string.Format("<input type=\"hidden\" id=\"hid_RefreshUrl\" value=\"{0}\" >", hidRefreshUrl));
if (pager.Pag > 1)//显示页码
{
if (pager.Cur > 1)
{
routeValues["page"] = pager.Cur - 1;
string pageUrl = UrlHelper.GenerateUrl(null, actionName, controllerName, routeValues, hh.RouteCollection, hh.ViewContext.RequestContext, true);
TagBuilder parent = new TagBuilder("a");
parent.InnerHtml = "<<";
parent.MergeAttribute("title", "上一页");
parent.MergeAttribute("href", option.Href);
parent.MergeAttribute("onclick", option.ToString(pageUrl));
sb.AppendLine(parent.ToString());
}
int showPage = 5; //showPage*2
int start = 1;
int end = 5 * 2;
if ((pager.Cur - showPage) < 1)
{
start = 1;
}
else
{
start = pager.Cur - showPage;
}
if ((pager.Cur + showPage) >= pager.Pag)
{
end = pager.Pag;
}
else
{
end = pager.Cur + showPage;
}
//首页
if (start > showPage)
{
routeValues["page"] = 1;
string pageUrl = UrlHelper.GenerateUrl(null, actionName, controllerName, routeValues, hh.RouteCollection, hh.ViewContext.RequestContext, true);
TagBuilder parent = new TagBuilder("a");
parent.InnerHtml = string.Format("<span>{0}</span>", 1);
parent.MergeAttribute("title", "首页");
parent.MergeAttribute("href", option.Href);
parent.MergeAttribute("onclick", option.ToString(pageUrl));
sb.AppendLine(parent.ToString());
}
for (int i = start; i <= end; i++)
{
routeValues["page"] = i;
string pageUrl = UrlHelper.GenerateUrl(null, actionName, controllerName, routeValues, hh.RouteCollection, hh.ViewContext.RequestContext, true);
TagBuilder aLink = new TagBuilder("a");
if (i == pager.Cur)
{
aLink.MergeAttribute("class", "cur");
aLink.InnerHtml = string.Format(" <b>{0}</b> ", i);
}
else
{
aLink.InnerHtml = string.Format(" <span>{0}</span> ", i);
}
aLink.MergeAttribute("href", option.Href);
aLink.MergeAttribute("onclick", option.ToString(pageUrl));
sb.AppendLine(aLink.ToString());
}
if (end < pager.Pag - showPage)
{
routeValues["page"] = pager.Pag;
string pageUrl = UrlHelper.GenerateUrl(null, actionName, controllerName, routeValues, hh.RouteCollection, hh.ViewContext.RequestContext, true);
TagBuilder next = new TagBuilder("a");
next.InnerHtml = string.Format("<span>{0}</span>", pager.Pag);
next.MergeAttribute("title", "尾页");
next.MergeAttribute("href", option.Href);
next.MergeAttribute("onclick", option.ToString(pageUrl));
sb.AppendLine(next.ToString());
}
if (pager.Cur < pager.Pag)
{
routeValues["page"] = pager.Cur + 1;
string pageUrl = UrlHelper.GenerateUrl(null, actionName, controllerName, routeValues, hh.RouteCollection, hh.ViewContext.RequestContext, true);
TagBuilder next = new TagBuilder("a");
next.InnerHtml = ">>";
next.MergeAttribute("title", "下一页");
next.MergeAttribute("href", option.Href);
next.MergeAttribute("onclick", option.ToString(pageUrl));
sb.AppendLine(next.ToString());
}
}
div.InnerHtml = sb.ToString();
return MvcHtmlString.Create(div.ToString());
}
public static MvcHtmlString AjaxPaging(this HtmlHelper hh, Pager pager, string actionName, string controllerName, AjaxPagingOption option, Object routeValues)
{
return AjaxPaging(hh, pager, actionName, controllerName, option, new RouteValueDictionary(routeValues));
}