POST-request for filter for torgi.gov.ru #HtmlAgilityPack #CSharp

gistfile1.cs

//Сделать POST-запрос для фильтра по дате
            HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
            doc.LoadHtml(page_content);
            HtmlNode node = doc.DocumentNode.SelectSingleNode(".//*[@id='lot_search']/../@onclick");
            string id_s = node.Attributes["onclick"].Value;
            var pat = @"id(..)";
            var id = Regex.Matches(id_s, pat)[0].Groups[1].Value;

            var date_filter_body = String.Format("id{0}_hf_0=&extended%3AbidOrganization%3AbidOrganizationName=&extended%3AbidOrganization%3AbidOrganizationLocation=&extended%3AbidOrganization%3AbidOrganizationInn=&extended%3AbidOrganization%3AbidOrganizationKinds%3AmultiSelectText=&extended%3AbidOrganization%3AbidOrganization=&extended%3AbidExtended%3AbidNumber=&extended%3AbidExtended%3AbidStatusId=&extended%3AbidNumberExtended%3AbidFormId=&extended%3AbidNumberExtended%3AdetailComplaintType=&extended%3AbidNumberExtended%3AexpireDateFrom=&extended%3AbidNumberExtended%3AexpireDateTo=&extended%3AbidNumberExtended%3ApublishDateFrom=&extended%3AbidNumberExtended%3ApublishDateTo=&extended%3AbidNumberExtended%3AlastChangeDateFrom=01.09.2014&extended%3AbidNumberExtended%3AlastChangeDateTo=30.09.2014&extended%3ApropertyTypes%3AmultiSelectText=&extended%3AdescriptionLot=&extended%3AlocationKladr=&extended%3AkladrIdStr=&extended%3AareaMeters%3AstringAreaMetersFrom=&extended%3AareaMeters%3AstringAreaMetersTo=&extended%3AcurrencyId=&extended%3AsubrentType=&extended%3AburdenType=&extended%3AstringPricePerMonthFrom=&extended%3AstringPricePerMonthTo=&extended%3ApropertyExtended%3AstringPricePerYearFrom=&extended%3ApropertyExtended%3AstringPricePerYearTo=&extended%3ApropertyExtended%3AstringDealFeeFrom=&extended%3ApropertyExtended%3AstringDealFeeTo=&extended%3ApropertyExtended%3AstringRentFrom=&extended%3ApropertyExtended%3AstringRentTo=&search_panel%3AbuttonsPanel%3Asearch=1", id);
            var search_url = "http://torgi.gov.ru/?wicket:interface=:0:search_panel:buttonsPanel:search::IActivePageBehaviorListener:0:&wicket:ignoreIfNotActive=true";

            webClient.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";
            page_content = webClient.UploadString(new Uri(search_url), date_filter_body);

            //Получить ActiveID
            doc.LoadHtml(page_content);
            node = doc.DocumentNode.SelectSingleNode(".//*[contains(concat(\" \", normalize-space(@class), \" \"), \"navigation\")]/td/div/a[contains(@onclick,\"next\")]/@id");
            var ActiveId = node.Attributes["id"].Value;