C# 重写Equals

时间:2022-01-21 16:48:46
public class PerformanceRank
{
public int Rank { get; set; } public string Eid { get; set; } public string Name { get; set; } public decimal Money { get; set; } //重写Equals方法 public override bool Equals(object obj)
{
if (obj == null)
{
return false;
}
if ((obj.GetType().Equals(this.GetType())) == false)
{
return false;
}
PerformanceRank temp = null;
temp = (PerformanceRank)obj; //因为取差集,不用rank,就不写rank
return this.Eid.Equals(temp.Eid) && this.Name.Equals(temp.Name) && this.Money.Equals(temp.Money); } //重写GetHashCode方法(重写Equals方法必须重写GetHashCode方法,否则发生警告 public override int GetHashCode()
{
return this.Eid.GetHashCode() + this.Name.GetHashCode() + this.Money.GetHashCode();
}
}   

    wtr.ItemsSource = week_top_rank;
    //wbr.ItemsSource = week_bottom_rank.Except(week_top_rank).ToList(); //排除重复的数据
    wbr.ItemsSource = week_bottom_rank.Where(d => !week_top_rank.Contains(d)); //排除重复的数据
    mtr.ItemsSource = month_top_rank;
    mbr.ItemsSource = month_bottom_rank.Except(month_top_rank).ToList(); //排除重复的数据