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Serializing XNA Rectangle with Json.NET

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野趣味
野趣味 2020-12-19 13:20

I\'m using Json.NET First look at this: 

using System.Drawing;
string json = JsonConvert.SerializeObject(new Rectangle(-3,6,32,32), Formatting.Indented);
Con
3条回答
  • 隐瞒了意图╮
    隐瞒了意图╮ (楼主)
    2020-12-19 13:31

    I've done some checking, this is the code that causes the exception:

        public static bool TryConvert(object initialValue, CultureInfo culture, Type targetType, out object convertedValue)
    {
      return MiscellaneousUtils.TryAction(delegate { return Convert(initialValue, culture, targetType); }, out convertedValue);
    }



    The actual call to the delegate that does the Convert work cannot find a convertor for this type. Investigating the cause for this, as the serializer is able to serialize and deserialize other types correctly.
    


    EDIT:
    


    This does not work, since the XNA Rectangle type is defined as:
    


        [Serializable]
    [TypeConverter(typeof(RectangleConverter))]
    public struct Rectangle : IEquatable

    


    Json.NET retrieves TypeConverter type, and calls this method on it:
    


      TypeConverter fromConverter = GetConverter(targetType);

  if (fromConverter != null && fromConverter.CanConvertFrom(initialType)) 
  {
       // deserialize
  }

    


    The RectangleConverter has a flag saying "supportsStringConvert = false", so attempting to convert a string into it fails.
    


    This is the reason that deserializing this specific object is failing.
    
    
    
             
    
                                                        
    
            
            
    
              
                
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