C# 中 List.Sort运用(IComparer<T>)排序用法
/// <summary>
/// 比较人物类实例大小,实现接口IComparer
/// </summary>
public class InternetProtocolComparer : IComparer<InternetProtocol>
{
public int Compare(InternetProtocol x, InternetProtocol y)
{
if (x == null)
{
if (y == null)
return 0;
else
return -1;
}
else
{
if (y == null)
return 1;
else
{
if (string.IsNullOrWhiteSpace(x.IP) || string.IsNullOrWhiteSpace(y.IP))
return 0;
int xIP = int.Parse(x.IP.Replace(".", ""));
int yIP = int.Parse(y.IP.Replace(".", ""));
int retval = yIP.CompareTo(xIP);
return retval;
}
}
}
}
参考地址:http://blog.csdn.net/kongwei521/article/details/12133377
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