使用别名方法属性被保留,但是您声明这是过多的开销(每个文件等)。
类型级别的属性被 genercally保留 - 但它取决于属性 - 为[Serializable]
,请注意,它具有:
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Struct
| AttributeTargets.Enum | AttributeTargets.Delegate, Inherited = false)]
的Inherited = false
是显著 - 即它不继承。
就我个人而言,我可能会专注于获得序列化ctor/callbacks在第一个例子中工作 - 我怀疑它会需要更多的努力。下面似乎罚款:
[Serializable]
public class Foo: Dictionary<string, string> {
public Foo() : base() { }
public Foo(SerializationInfo info, StreamingContext context) : base(info, context) { }
public Foo(int capacity) : base(capacity) { }
public Foo(IEqualityComparer<string> comparer): base(comparer) {}
public Foo(IDictionary<string,string> dictionary) : base(dictionary) { }
public Foo(int capacity, IEqualityComparer<string> comparer) : base(capacity, comparer) { }
public Foo(IDictionary<string, string> dictionary, IEqualityComparer<string> comparer) : base(dictionary, comparer) { }
}
然而,这里是通过封装一种替代方案:
[Serializable]
public class Foo : IDictionary<string,string>
{
private readonly Dictionary<string, string> inner = new Dictionary<string, string>();
public void Add(string key, string value)
{
inner.Add(key, value);
}
public bool ContainsKey(string key)
{
return inner.ContainsKey(key);
}
public ICollection<string> Keys
{
get { return inner.Keys; }
}
public bool Remove(string key)
{
return inner.Remove(key);
}
public bool TryGetValue(string key, out string value)
{
return inner.TryGetValue(key, out value);
}
public ICollection<string> Values
{
get { return inner.Values; }
}
public string this[string key]
{
get
{
return inner[key];
}
set
{
inner[key] = value;
}
}
void ICollection<KeyValuePair<string, string>>.Add(KeyValuePair<string, string> item)
{
((IDictionary<string,string>)inner).Add(item);
}
public void Clear()
{
inner.Clear();
}
bool ICollection<KeyValuePair<string, string>>.Contains(KeyValuePair<string, string> item)
{
return ((IDictionary<string, string>)inner).Contains(item);
}
void ICollection<KeyValuePair<string, string>>.CopyTo(KeyValuePair<string, string>[] array, int arrayIndex)
{
((IDictionary<string, string>)inner).CopyTo(array, arrayIndex);
}
public int Count
{
get { return inner.Count; }
}
bool ICollection<KeyValuePair<string, string>>.IsReadOnly
{
get { return ((IDictionary<string, string>)inner).IsReadOnly; }
}
bool ICollection<KeyValuePair<string, string>>.Remove(KeyValuePair<string, string> item)
{
return ((IDictionary<string, string>)inner).Remove(item);
}
public IEnumerator<KeyValuePair<string, string>> GetEnumerator()
{
return inner.GetEnumerator();
}
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
{
return inner.GetEnumerator();
}
}
为什么你需要一个别名?你想解决什么问题? – 2011-02-04 05:33:40