MVC 如何分页，还有点击下一页的时候能传递查询FORM里的参数

Question

MVC 如何分页，还有点击下一页的时候能传递查询FORM里的参数

Answer 1

这个是我做分页的时候写的，因为有筛选条件，所以用POST提交的，然后是把当前页保存到了SESSION中/// <summary>
        /// 分页Pager显示
        /// </summary>
        /// <param name="html"></param>
        /// <param name="currentPageStr">标识当前页码的QueryStringKey</param>
        /// <param name="pageSize">每页显示</param>
        /// <param name="totalCount">总数据量</param>
        /// <returns></returns>
        public static MvcHtmlString Pager(this HtmlHelper html, int pageSize, int totalCount)
        {
            int currentPage;
            int.TryParse(HttpContext.Current.Request.Form["currentPageIndex"], out currentPage); //与相应的QueryString绑定
            if (currentPage == 0)
                if (CurrentP != "" && CurrentP != null)
                    currentPage = int.Parse(CurrentP);
                else
                    currentPage = 1;
            var totalPages = Math.Max((totalCount + pageSize - 1) / pageSize, 1); //总页数
            var output = new StringBuilder();
            output.AppendLine("<input type=\"hidden\" id=\"currentPageIndex\" name=\"currentPageIndex\" value=\"" + (HttpContext.Current.Request.Form["currentPageIndex"] == null ? currentPage.ToString() : HttpContext.Current.Request.Form["currentPageIndex"]) + "\"/>");            if (totalPages > 1)
            {
                if (currentPage != 1)
                {//处理首页连接
                    output.AppendFormat("{0} ", html.RouteLink("首页", new { }, new { onclick = "return Goto(" + 1 + ")" }));
                }
                if (currentPage > 1)
                {//处理上一页的连接 
                    output.Append(html.RouteLink("上一页", new { }, new { onclick = "return Prev_Goto(" + (currentPage - 1) + ")" }));
                }
                else
                {
                    output.Append("上一页");
                }
                output.Append(" ");
                int currint = 5;
                for (int i = 0; i <= 10; i++)
                {//一共最多显示10个页码，前面5个，后面5个  
                    if ((currentPage + i - currint) >= 1 && (currentPage + i - currint) <= totalPages)
                        if (currint == i)
                        {//当前页处理  
                            output.Append(string.Format("[{0}]", currentPage));
                        }
                        else
                        {//一般页处理  
                            output.Append(html.RouteLink((currentPage + i - currint).ToString(), new { }, new { onclick = "return Goto(" + (currentPage + i - currint) + ")" }));
                        }
                    output.Append(" ");
                }
                if (currentPage < totalPages)
                {//处理下一页的链接 
                    output.Append(html.RouteLink("下一页", new { }, new { onclick = "return Next_Goto(" + (currentPage + 1) + ")" }));
                }
                else
                {
                    output.Append("下一页");
                }
                output.Append(" ");
                if (currentPage != totalPages)
                {
                    output.Append(html.RouteLink("末页", new { }, new { onclick = "return Goto(" + totalPages + ")" }));
                }
                output.Append(" ");
            }
            output.AppendFormat("{0} / {1}", currentPage, totalPages);//这个统计加不加都行             output.AppendLine("");
            output.AppendLine("<script type=\"text/javascript\">");
            output.AppendLine("function Goto(p) {");
            output.AppendLine("$(\"#currentPageIndex\").val(p);");
            output.AppendLine("$(\"form\").attr(\"action\", \"Index?p=\" + p);");
            output.AppendLine("$(\"form\").submit();");
            output.AppendLine("return false;");
            output.AppendLine("}");
            output.AppendLine("function Prev_Goto(p) {");
            output.AppendLine("$(\"#currentPageIndex\").val(parseInt($(\"#currentPageIndex\").val()) - 1);");
            output.AppendLine("$(\"form\").attr(\"action\", \"Index?p=\" + p);");
            output.AppendLine("$(\"form\").submit();");
            output.AppendLine("return false;");
            output.AppendLine("}");
            output.AppendLine("function Next_Goto(p) {");
            output.AppendLine("$(\"#currentPageIndex\").val(parseInt($(\"#currentPageIndex\").val()) + 1);");
            output.AppendLine("$(\"form\").attr(\"action\", \"Index?p=\" + p);");
            output.AppendLine("$(\"form\").submit();");
            output.AppendLine("return false;");
            output.AppendLine("}");
            output.AppendLine("</script>");            return new MvcHtmlString(output.ToString());
        }

Answer 2

public static string CurrentP
        {
            get
            {
                return HttpContext.Current.Session["currentPage"] == null ? "" : HttpContext.Current.Session["currentPage"].ToString();
            }
        }