小编S.S*_*ani的帖子

请考虑以下映射代码：

public sealed class BankMapping : ClassMap<Bank>
{
    public BankMapping()
    {
        CompositeId()
            .KeyProperty(x => x.SerialNumber, "SerialBankRef")
            .KeyProperty(x => x.FinancialPeriodId, "FinancialPeriodRef");
        Map(x => x.Code);
        Map(x => x.Title);
        Map(x => x.Comment);
        Map(x => x.IsActive);            
        HasMany(x => x.BankBranchs).KeyColumns.Add(new[] { "SerialBankRef", "FinancialPeriodRef" });

    }
}

而BankBranch映射代码为：

public sealed class BankBranchMapping : ClassMap<BankBranch>
{
    public BankBranchMapping()
    {
       CompositeId()
            .KeyProperty(x => x.FinancialPeriodId, "FinancialPeriodRef")
            .KeyProperty(x => x.SerialNumber, "SerialNumber");
        Map(x => x.Code);
        Map(x => x.Title);
        Map(x => x.Comment);
        Map(x => x.IsActive);
        Map(x => x.Address);
        Map(x => …