public void GetResult()
{
if (HtmlNode.ElementsFlags.ContainsKey("option"))
{
HtmlNode.ElementsFlags["option"] = HtmlElementFlag.Closed;
}
else
{
HtmlNode.ElementsFlags.Add("option", HtmlElementFlag.Closed);
}
HtmlWeb web = new HtmlWeb();
AutoTraderResult result = new AutoTraderResult();
result.Index = this.index;
if (yearMakeModel == "")
{
result.AveragePrice = 0;
result.NumberOfListings = "";
ResultScraped(result);
return;
}
string mainDocUrl = String.Format("http://www.autotrader.ca/a/pv/new-used/all/all/{0}/?prx=100&cty=TURKEY+POINT&prv=Ontario&r=40&loc=N0E1T0&cat1=2&cat2=7%2c11%2c10%2c9&st=1", yearMakeModel.Replace(" ", "%20"));
HtmlDocument mainDoc = web.Load(mainDocUrl);
List<AutoTraderCar> cars = new List<AutoTraderCar>();
HtmlNodeCollection priceKmNodes = mainDoc.DocumentNode.SelectNodes("//div[@class='at_priceKmArea at_marginB']");
if (priceKmNodes == null)
{
result.AveragePrice = 0;
result.NumberOfListings = "0";
ResultScraped(result);
return;
}
foreach (HtmlNode priceKmNode in priceKmNodes)
{
string priceInnerHtml = priceKmNode.SelectSingleNode("div[@class='at_price at_sprite']").InnerHtml.Trim();
double price = 0;
try
{
price = double.Parse(priceInnerHtml, NumberStyles.Currency);
}
catch
{
price = double.Parse(priceInnerHtml.Replace("$", "").Replace(",", ""));
}
string meter = "";
try
{
meter = priceKmNode.SelectSingleNode("div[@class='at_km']").InnerHtml.Trim();
}
catch
{
meter = "0";
}
cars.Add(new AutoTraderCar { Price = price, Km = meter });
}
if (cars.Count == 0)
{
result.AveragePrice = 0;
result.NumberOfListings = "0";
ResultScraped(result);
return;
}
double totalPrice = 0;
foreach (var autoTraderCar in cars)
{
totalPrice += autoTraderCar.Price;
}
result.AveragePrice = totalPrice / cars.Count;
result.NumberOfListings = "";
ResultScraped(result);
}
void AutoTraderResultScraped(AutoTraderResult result)
{
currentDispatcher.BeginInvoke((Action)(delegate
{
Cars[result.Index].AutoTraderPrice = result.AveragePrice.ToString();
Cars[result.Index].AutoTraderNumberOfVehicles = result.NumberOfListings;
}));
}
