public CommonScope(DataAccess dac)
{
try
{
this.dac = dac;
if (this.scope == null)
{
dac.Scope = this;
this.scope = new TransactionScope();
dac.conn.Open();
}
}
catch (Exception exception)
{
throw new CommonException("事务中打开数据库连接出错. 连接串：" + dac.conn.ConnectionString, exception, CommonDeclare.EnumExceptionLevel.FAULT);
}
}
/// <summary>
/// 根据传入的数据连接及事务控件对象启用事务控制
/// </summary>
/// <param name="dac">数据连接入事务控制对象</param>
public CM_UserListService(DataAccess dac)
{
this.dac = dac;
}
/// <summary>
/// 根据传入的数据连接及事务控件对象启用事务控制
/// </summary>
/// <param name="dac">数据连接入事务控制对象</param>
public CM_UserListDBO(DataAccess dac)
{
this.dac = dac;
}
protected BusinessObject(DataAccess da)
{
this.dac = new DataAccess("");
this.dac = da;
}
/// <summary>
/// 默认构造函数总是执行，除非用:base指定构造函数，启用默认数据库连接
/// 传入DataAccess da也会执行浪费资源可以改进
/// </summary>
protected BusinessObject()
{
this.dac = new DataAccess("");
}