我正在制作泛型类中的嵌套内部类,我不确定我是否正确地写了这个。这里有什么明显的错误吗?
以下是代码:
public class Foo<T> where T : IComparable<T>
{
protected class Bar : IComparable
{
private KeyValuePair<T, string> _keyval;
public Bar(KeyValuePair<T, string> kv)
{
_keyval = kv;
}
public int CompareTo(object obj)
{
T comparing = (T)obj;
return _keyval.Key.CompareTo(comparing.key);
}
}
private List<Bar> _bars;
public Foo()
{
_bars = new List<Bar>();
}
public void AddKeyValInOrder(KeyValuePair<T, string> kv)
{
Bar toAdd = new Bar(kv);
int positionToAddAt = _bars.BinarySearch(toAdd);
if (positionToAddAt < 0)
positionToAddAt = positionToAddAt ^ -1;
_bars.Insert(positionToAddAt, toAdd);
}
}
答案 0 :(得分:2)
首先请注意,如果您不需要重复,SortedList<T>
可能会有所帮助。
List<Bar>
想要比较Bar
个实例,因此您的比较需要适用于Bar
(最容易通过实施IComparable<Bar>
来强制执行:
protected class Bar : IComparable, IComparable<Bar>
{
private KeyValuePair<T, string> _keyval;
public Bar(KeyValuePair<T, string> kv)
{
_keyval = kv;
}
public int CompareTo(Bar other)
{
return _keyval.Key.CompareTo(other._keyval.Key);
}
int IComparable.CompareTo(object obj)
{
return CompareTo(obj as Bar);
}
}