How to fill GridPanel from existing list?

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MVC

Razor

I have returned a list of classes List<warning> from the control class like this:

public ActionResult Ex3()
       {
           List<warning> warningsList = new List<warning>();

           XElement xelem = XElement.Load(transformedFile);
           var warnings = from elem in xelem.Descendants("warning")
                          select elem;

           foreach (var v in warnings)
           {
               warning warn = new warning();
               warn.id = v.Attribute("id").Value;

               warningsList.Add(warn);

           }
           return View(warningsList);
       }

i have created a view with the option "create a strongly typed view" and i have choose the warning class as a model.
Now, in Ex3View.cshtml, i want to create and fill a gridpannel with the values in the warningsList. Please note that the view file is .cshtml and not .aspx.