Why does SerializationInfo not have TryGetValue methods?

前端 未结 3 1667
暗喜
暗喜 2021-02-12 16:49

When implementing the ISerializable interface in C#, we provide a constructor which takes a SerializationInfo object, and then queries it with various

3条回答
  •  深忆病人
    2021-02-12 17:00

    Well no one answered 'why', but I'm guessing that's addressed to MS..

    My implementation for anyone in need:

    public static class SerializationInfoExtensions
    {
        public static bool TryGetValue(this SerializationInfo serializationInfo, string name, out T value)
        {
            try
            {
                value = (T) serializationInfo.GetValue(name, typeof(T));
                return true;
            }
            catch (SerializationException)
            {
                value = default(T);
                return false;
            }
        }
    
        public static T GetValueOrDefault(this SerializationInfo serializationInfo, string name, Lazy defaultValue)
        {
            try
            {
                return (T) serializationInfo.GetValue(name, typeof(T));
            }
            catch (SerializationException)
            {
                return defaultValue.Value;
            }
        }
    }
    

提交回复
热议问题