[Solved] Cross-Origin XMLHttpRequest in .Net Web application

Hello guys,
I guess most of you have faced this kind of problem where an error of this kind written in console
"Cross-Origin XMLHttpRequest is blocked due to security reasons"
 when you are either calling a webservice or webapi from a different origin in your project/solution.
Actually it simply means that your browser has blocked the XMLHttpRequest because your current application has different origin compared to originating Webapi or Webservice.

A simple solution to this is try to add these lines in your webconfig file which will allow the cross-origin XMLHttpRequest by your browser by default.

<system.webServer>
    <httpProtocol>
      <customHeaders>
        <add name="Access-Control-Allow-Origin" value="*"/>
      </customHeaders>
    </httpProtocol>

<system.webServer>

thanks. Have a nice day

Get The FaceBook Likes

Hello Guys,
Today I want to show you show you c# code through which you can easily get likes from a facebook page. Getting Facebook likes from a page is very easy if you know the URL of that page but if you dont know the url then you need to get search within facebook so that you get the url of that page.
Here i have used HTML agility pack to traverse through DOM of facebook page.
 Your likes will be stored in result variable.

       

  HtmlWeb htmlWeb = new HtmlWeb();
   HtmlAgilityPack.HtmlDocument htmlDocument = htmlWeb.Load(@"URL of Facebook Page");
                   
                   
 string result=null;
 // oldOne var htmlResults = htmlDocument.DocumentNode.SelectSingleNode("/html[1]/body[1]/code[1]");
 var htmlResults = htmlDocument.DocumentNode.SelectSingleNode("/html[1]/body[1]/code[3]");
 var verifiedpageNode = htmlDocument.DocumentNode.SelectSingleNode("/html[1]/body[1]/script[8]");
 int startpoint = 1;
 var lastindex = htmlResults.InnerText.LastIndexOf("https://www.facebook.com/");
 bool con = true;
 int count = 0;
         while ((startpoint != lastindex || con))
           { var index = htmlResults.InnerText.IndexOf("https://www.facebook.com/", startpoint);
              if (index < 0)
              break;
             var endpoint = htmlResults.InnerText.IndexOf("\"", index + 1);
              if (endpoint > index&& startpoint>0 )
               { htmlDocument = htmlWeb.Load((htmlResults.InnerText.Substring(index, endpoint - index)));
                 var nodes = htmlDocument.DocumentNode.Descendants().SingleOrDefault(x => x.Id == "u_0_j");
               var likes = (nodes.InnerText.Split('>')[17].Split('<').FirstOrDefault().Trim());
               if (index >= 0)
                {  result += "likes= " + likes + " " + (htmlResults.InnerText.Substring(index, endpoint - index)) + Environment.NewLine;
                } startpoint = index + 1;
                if (startpoint == lastindex + 1)
                  break; }
                        }