/// <summary>
/// 环绕拦截通知
/// </summary>
/// <param name="invocation"></param>
/// <returns></returns>
public object Invoke(IMethodInvocation invocation)
{
//对OrderRepository进行方法拦截
if (invocation.Method.Name == "Save")
{
OrderRepository orderDAL = (OrderRepository)invocation.Target;
return(categoryDAL.CheckNo(orderDAL.Order.Category) ? invocation.Proceed() : null);
}
else
{
return(invocation.Proceed());
}
}
public bool CheckNo(Category category)
{
return(categoryDAL.CheckNo(category));
}