小编use*_*733的帖子

我已经阅读了许多与此类似的其他问题 - 但对Nhibernate来说是新手,他们似乎都没有回答我的问题,为什么Inhibernate会抛出"找到对集合的共享引用:Order.ShippingAddress.Items"到以下代码:

 VendorOrderNotificationAcknowledgement ICheckoutVendorService.SendOrderNotification(VendorOrderNotification request)
{
        OrderRepository repo = new OrderRepository();
        var order =(AbstractOrder) repo.FindByCartId(request.OrderNotification.CartOrderId);

        ShippingAddress billingAddress = order.ShippingAddresses[0];
        var itemsFromDb = billingAddress.Items;
        order.ClearAllShippingAddresses();
        wcfFactory.UpdateOrder(order); //NO ERROR THROWN HERE!
        ShippingAddress shippingAddress = orderHelper.CreateShippingAddress(request.ShippingDetails);
        shippingAddress.Items = itemsFromDb;
        order.AddShippingAddress(shippingAddress);

        order.SourceCode = _sourceCode;
        order.TaxAmount = 0;
        order.GiftCertificateAmount = 0;
        order.Status = StatusCode.Approved;
        order.CreatedAt = request.OrderNotification.OrderTime.Year >2010
            ? request.OrderNotification.OrderTime
            : DateTime.Now;
        order.PurchasedDate= 
                                  request.OrderNotification.OrderTime.Year>2010
            ? request.OrderNotification.OrderTime
            : DateTime.Now;
        order.UpdatedAt = DateTime.Now;

        if (request.OrderNotification.OrderCharges != null)
        {
            order.ShippingAmount = request.OrderNotification.OrderCharges.Shipping;
            order.TaxAmount = request.OrderNotification.OrderCharges.DutyAndTaxes;
        }
        else …

我试图使用c#,实体框架 - 数据库优先和mvc来编写/读取ms sql数据库的纬度和经度.

问题是lat/long只显示2位小数,即使它们在数据库中是正确的.数据库的字段为数字(18,6).

我修改了上下文文件,如下所示:

protected override void OnModelCreating(System.Data.Entity.DbModelBuilder modelBuilder)
    {
        modelBuilder.Entity<STORE_LOCATION>().Property(location => location.LATITUDE).HasPrecision(18, 6);
        modelBuilder.Entity<STORE_LOCATION>().Property(location => location.LONGITUDE).HasPrecision(18, 6);
    }

2个问题 - 我是否应该在上下文文件中修改OnModelCreating - 即使它警告更改可能会在重新生成时丢失,如何使代码不会舍入小数？

任何帮助赞赏!

我必须在视图中从控制器方法获取值以写入一些javascript.在网页中,它就像<%= functionName()%>一样简单.有没有办法在MVC中执行此操作.我无法使用该模型,因为javascript必须在页面加载时可用.任何见解都表示赞赏.