ViewResult

ViewResult.cs

namespace System.Web.Mvc
{
    public class ViewResult : ViewResultBase
    {
        private string _masterName;

        public string MasterName
        {
            get { return _masterName ?? String.Empty; }
            set { _masterName = value; }
        }

        protected override ViewEngineResult FindView(ControllerContext context)
        {
            ViewEngineResult result = ViewEngineCollection.FindView(context, ViewName, MasterName);
            if (result.View != null)
            {
                return result;
            }

            //генирация исключения со всеми местами, где искали файл представления
            StringBuilder locationsText = new StringBuilder();
            foreach (string location in result.SearchedLocations)
            {
                locationsText.AppendLine();
                locationsText.Append(location);
            }
            throw new InvalidOperationException(String.Format(CultureInfo.CurrentCulture,
                                                              MvcResources.Common_ViewNotFound, ViewName, locationsText));
        }
    }
}