Question

我有基于nHibernate数据访问的OData WCF服务。一切正常，但我想使用＆＃34; Expand＆＃34;加载相关数据。这是我的代码：

[DataServiceKey("Id")]
public class Product : BaseEntity
{
    public Product()
    {       
        CreatedDate = DateTime.UtcNow;
    }

    public virtual long Id { get; set; }

    public virtual DateTime CreatedDate { get; set; }

    public virtual User CreatedBy { get; set; }

    public virtual string Name { get; set; }

    public virtual string Symbol { get; set; }

    public virtual decimal Weight { get; set; }

    public virtual Tax Tax { get; set; }

    [EntityCustomAttribute(UseOnFK = true)]
    public virtual ProductAttributeGroup AttributeGroup { get; set; }   

}

[DataServiceKey("Id")]
public class ProductAttributeGroup : BaseEntity
{
    public ProductAttributeGroup()
    {
        Products = new List<Product>();
    }

    public virtual int Id { get; set; }

    public virtual string Name { get; set; }

    public virtual int OrderBy { get; set; }

    public virtual IList<Product> Products { get; set; }

}


//this is odata service client code:
  var dbResults = DataServiceBus.ExecuteService(s => s.Products.Expand("AttributeGroup").Where(GetQuery(query))).OrderBy(GetOrderBy(query))
                .Skip(query.Skip).Take(query.Take).Select(x => new ProductListItemViewModel()
                {
                    Id = x.Id,
                    Name = x.Name,
                    GroupName = x.AttributeGroup.Name,
                    Symbol = x.Symbol,
                    Weight = x.Weight
                }).ToList();

当我尝试执行我的客户端代码时，我总是发现错误： 处理响应流时出错。服务器失败并显示以下消内部服务器错误。类型＆＃39; ProductAttributeGroupProxy＆＃39;不是复杂类型或实体类型。

看起来OData客户端无法将代理识别为有效的实体类型。有没有办法解决这个问题？

如何使用Odata和nHibernate加载相关属性

0 个答案: