private IBridge_IA _DAL_Instance = null;//数据层实例
public ADODirect_IA()
{
_DAL_Instance = new dalIA(Loginer.CurrentUser);
}
public bllIA()
{
_KeyFieldName = tb_IA.__KeyName;
_SummaryTableName = tb_IA.__TableName;
_Bridge = this.CreateBridge();//实例化桥接功能
}