title: Updating sort column in ASP.NET with Request.QueryString Array
body: <p>I'm passing a list of guids in a GET request from a JQuery Ajax call.</p>
  
  <p>on my ASP.NET controller side I want to iterate through the list and update the Display_Sort column to match my newly sorted list.</p>
  
  <p>My ID is a Guid and I'm getting a type error in the following code, because it's a string that I'm passing to the Db. However, I can't seem to convert the item(string) into a Guid.</p>
  
  <p>I've tried Guid(item) and it would allow the constructor. Not sure what I'm missing.</p>
  
  <p>Here is the code:</p>
  
  <pre><code>        //REORDER HOME ASSETS
      public ActionResult ReOrderHome()
      {
          using (var db = new IFEntities())
          {
              var myString = Request.QueryString;
              var i = 1;
  
              foreach (var item in myString)
              {
                 var myObj = db.HomeContents.Find(item);
                  myObj.display_order = i;
                  db.SaveChanges();
                  i++;
              }
          } 
  </code></pre>