我有一个类 Money,我想知道在这个值类上实现 GetHashCode 的最佳方法是给 $1 != €1。对货币 * 值进行加权值是行不通的。
public class Money : System.IEquatable<Money>
{
public Money(Currency c, decimal val)
{
this.Currency = c;
this.Value = val;
}
public Currency Currency
{
get;
protected set;
}
public decimal Value
{
get;
protected set;
}
public override bool Equals(object obj)
{
Money m = obj as Money;
if (m == null){throw new System.ArgumentNullException("m");}
if(m.Currency.Id == this.Currency.Id)
{
if(m.Value == this.Value)
{
return true;
}
else
{
return false;
}
}
else
{
return false;
}
}
public override int GetHashCode()
{
// What would be the best way of implementing this as €1 != $1
// Currency object contains 2 members, (int) Id and (string) symbol
}
}