Question

我有一个报告，其中显示一些子类值。它对某些人来说效果很好，但对其他人来说并不好，我不知道为什么。模特：

[Serializable]
public partial class CompanyProvider
{

    public int CompanyProviderId { get; set; }
    public string CompanyNo { get; set; }
    public string LPID { get; set; }
    public string VATNo { get; set; }

    public int? CompanyProviderAddressId { get; set; }
    [ForeignKey("CompanyProviderAddressId")]
    public virtual CompanyProviderAddress CompanyProviderAddress { get; set; }       

    public int? CompanyProviderAddressBillingId { get; set; }
    [ForeignKey("CompanyProviderAddressBillingId")]
    public virtual CompanyProviderAddressBilling CompanyProviderAddressBilling { get; set; }

    public int? CompanyProviderContactManagerId { get; set; }
    [ForeignKey("CompanyProviderContactManagerId")]
    public virtual CompanyProviderContactManager CompanyProviderContactManager { get; set; }

    public int? CompanyProviderBankId { get; set; }
    [ForeignKey("CompanyProviderBankId")]
    public virtual CompanyProviderBank CompanyProviderBank { get; set; }
   ...
}

[Serializable]
public partial class CompanyProviderBank
{
    public int CompanyProviderBankId { get; set; }

    public int? BankId { get; set; }
    public virtual Bank Bank { get; set; }

    public string Postcode { get; set; }
    public string AddressLine1 { get; set; }
    public string AddressLine2 { get; set; }
    public string City { get; set; }
}

[Serializable]
public partial class CompanyProviderAddress
{
    public int CompanyProviderAddressId { get; set; }
    public string Postcode { get; set; }
    public string AddressLine1 { get; set; }
    public string AddressLine2 { get; set; }
    public string City { get; set; }
}

它适用于只有“简单”属性（string，int ...）的CompanyProviderAddress和CompanyProviderAddress，但它不适用于具有复杂属性的CompanyProviderContactManager和CompanyProviderBank（如Bank for CompanyProviderBank）。一切都是可序列化的，这在我的报告中有效：

=First(Fields!CompanyProviderAddress.Value.City(), "CompPro")

但是这不起作用，给我一个#Error

=First(Fields!CompanyProviderBank.Value.City(), "CompPro")

有什么想法吗？或者也许有人知道如何获得有关#error的更多细节，更明确的是什么？ THX

Answer 1

您的对象可能是null。您可以检查它们是否为空：

=IIF(IsNothing(First(Fields!CompanyProviderBank.Value.City)), 0,First(Fields!CompanyProviderBank.Value.City))

我不完全确定上面的语法是否正确，如果不是，请告诉我。

rdlc #error，不知道为什么

1 个答案: