Question

我从nhibernate开始，我需要创建一个执行添加，更新和删除功能的应用程序我的添加和更新工作正常但是删除字段时，无法将标志更改为True ....但有些我无法做到这一点我的控制器

public ActionResult Delete(int id)
    {
        Product_Master pm = new Product_MasterService().GetProduct_Data(id);
                   return View(pm);
    }

 [HttpDelete]
    public ActionResult Delete(Product_Master Prod)
    {
        try
        {
            if (ModelState.IsValid)
            {
                new Product_MasterService().DeleteProd(Prod);
                return RedirectToAction("Index");
            }
            return View(Prod);
        }
        catch
        {
            return View();
        }
    }

在我看来

<h3>Are you sure you want to delete this?</h3>

Hobby_Master

<div class="display-label">Product_Id</div>
<div class="display-field">
   @Html.DisplayFor(model => model.product_Id)
</div>

<div class="display-label">Product_Name</div>
<div class="display-field">
    @Html.DisplayFor(model => model.product_Name)
</div>
@using (Html.BeginForm()) {
<p>
    <input type="submit" value="Delete" /> |
    @Html.ActionLink("Back to List", "Index")
</p>
}

我使用过nhibernate和mvc 并在Product_MasterService（）中编写函数如下

 public bool DeleteProd(Product_Master Prod)
    {
        log.Debug("Start");
        ISession session = DataAccessLayerHelper.OpenWriterSession();
        ITransaction transaction = session.BeginTransaction();

            try
        {
            Prod.Deleted = 'T';
            session.SaveOrUpdate(Prod);
            transaction.Commit();

            return true;
        }
        catch (Exception ex)
        {
            if (transaction != null && transaction.IsActive)
                transaction.Rollback();

            log.Error(ex);
            return false;
        }
        finally
        {
            if (transaction != null)
                transaction.Dispose();

            if (session != null && session.IsConnected)
                session.Close();

            log.Debug("End");
         }            }

任何人都可以帮助我......

Answer 1

您需要关闭会话调用session.Close（）;

Answer 2

我认为ivowiblo是对的，你不能从try / catch返回值。您可以使用局部变量：

        var hasSuccessSave = false;
        try
        {
            Prod.Deleted = 'T';
            session.SaveOrUpdate(Prod);
            transaction.Commit();

            hasSuccessSave = true;
        }
        catch (Exception ex)
        {
            if (transaction != null && transaction.IsActive)
                transaction.Rollback();

            log.Error(ex);
        }
        finally
        {
            if (transaction != null)
                transaction.Dispose();

            if (session != null && session.IsConnected)
                session.Close();

            log.Debug("End");
         }    
         return hasSuccessSave;

更新字段时出错

2 个答案: