모의 투자가 아닐 경우 IOC 매수

Crawler.cs

@@ -151,7 +151,12 @@ namespace NewsCrawler
 							doc.LoadHtml(responseFromServer);
 							string strXPath = "//div[contains(@class, 'flash_tab_lst')]/ul/li";
 							var lists = doc.DocumentNode.SelectNodes(strXPath);
-							foreach(var item in lists)
+							if (lists == null)
+							{
+								return;
+							}
+
+							foreach (var item in lists)
 							{
 								string strTitle = item.SelectSingleNode(".//a").InnerText;
 								string strTime = item.SelectSingleNode(".//span[contains(@class, 'flash_press')]").InnerText;
@@ -1209,6 +1214,11 @@ namespace NewsCrawler
 							string strXPath = "//div[@class='categoryList']//li";
 
 							var lists = doc.DocumentNode.SelectNodes(strXPath);
+							if (lists == null)
+							{
+								return;
+							}
+
 							try
 							{
 								foreach(var item in lists)