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out on a method

/ Published in: C#
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  1. /// <summary>
  2.         /// Gets the current category and stage.
  3.         /// </summary>
  4.         public bool GetCurrentCategoryAndStage(
  5.             out Category category,
  6.             out Stage stage)
  7.         {
  8.             category = null;
  9.             stage = null;
  10.             var result = Request.QueryString[WebConstants.CatagoryNavigatorQueryStringKey];
  11.  
  12.             // When no options are specified use the defaults
  13.             // which are the first category and first stage
  14.             if (String.IsNullOrEmpty(result))
  15.             {
  16.                 category = (ReferenceData.Categories != null && ReferenceData.Categories.Length > 0) 
  17.                     ? ReferenceData.Categories[0] : null;
  18.                 stage = (category != null && category.Stages != null && category.Stages.Length > 0) 
  19.                     ? category.Stages[0] : null;
  20.  
  21.                 // Success when all values have been set
  22.                 return category != null && stage != null;
  23.             }
  24.  
  25.             var options = result.Split(new[] { WebConstants.CategoryNavigatorSeparator }, StringSplitOptions.RemoveEmptyEntries);
  26.  
  27.             // Format of querystring value should be {0}:{1} or to be more accurate
  28.             // {0}[Separator]{1}
  29.             if (options.Length < 2)
  30.                 return false;
  31.  
  32.             // Here are the Id in hash form
  33.             int categoryIdQueryStringEntry;
  34.             int stageIdQueryStringEntry;
  35.  
  36.             if (!int.TryParse(options[0], out categoryIdQueryStringEntry) || !int.TryParse(options[1], out stageIdQueryStringEntry))
  37.                 return false;
  38.  
  39.             // Now there are all the required elements to get 
  40.             // the category and stage its time to return them
  41.             // to the client
  42.             category = ReferenceData.Categories
  43.                 .Where(x => ConvertToQueryStringEntry(x.Id) == categoryIdQueryStringEntry)
  44.                 .FirstOrDefault();
  45.  
  46.             if (category == null)
  47.                 return false;
  48.  
  49.             stage = category.Stages
  50.                 .Where(x => ConvertToQueryStringEntry(x.Id) == stageIdQueryStringEntry)
  51.                 .FirstOrDefault();
  52.  
  53.             if(stage == null)
  54.                 return false;
  55.  
  56.             return true;
  57.         }out on a method

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