c# 列表比较器使用两个比较元素

Question

private class CompAdvertisements : IComparer<Advertisements>
{
private string OrderBy { get; set; }

public CompAdvertisements(string orderBy)
{
OrderBy = orderBy;
}

#region IComparer<Advertisements> Members

public int Compare(Advertisements x, Advertisements y)
{
return x.Country.Name.CompareTo(y.Country.Name);

我也可以使用 x.Name.CompareTo(y.Name);在比较器中，我将比较两个元素，比如按某物排序和按某物排序

Answer 1

是的。如果外部比较表明您的两个元素 (Country.Name) 相同，那么您将返回内部比较 (somethingElse) 的结果。您可以针对任意深度的比较执行此操作。

outerCompare = x.Country.Name.CompareTo(y.Country.Name);
if (outerCompare != 0)
{
    return outerCompare;
}
else
{
    return (x.Name.CompareTo(y.Name));
}