在做顾客银行这个例子的时候,怎么也进行不下去了,遇到了如下一个错误:Object type cannot be converted to target type.
我想做的事情是这样的:我把需求稍微改动了一下,Customer和Bank不再是one-to-one了,而是one-to-many.
那么我在配置文件中改成:
Customer.hbm.xml
<bag name="CustomerBanks"
cascade="all"
order-by="BankName asc">
<key column="CustomerID" />
<one-to-many class="Data.Bank, Data"/>
</bag>
Bank.hbm.xml
<many-to-one name="BankCustomer" class="Data.Customer, Data"
cascade="all" outer-join="auto"
column="CustomerID"
not-null="false" />
详细的配置文件、Domain Model 和 DB Model在此下载!
然后我想插入Customer的时候同时插入Bank,实现代码如下
Customer aCustomer = new Customer();
aCustomer.CustomerTitle = "Developer";
aCustomer.CustomerAge = 25;
aCustomer.UpdateTimestamp = DateTime.Now;
Bank aBank = new Bank();
aBank.BankName = "CICB";
aBank.Banlance = 1233453.234M;
aBank.UpdateTimestamp = aCustomer.UpdateTimestamp;
// bind the two object to each other.
aBank.BankCustomer = aCustomer;
aCustomer.CustomerBanks.Add(aBank);
aEntityRule.Save(aCustomer);
为什么出现错误,Object type cannot be converted to target type.
我用SQL Profile察看,发现根本没有生成任何SQL 语句,请指点一下哪里错了