应用错误收集

对于那里的任何RIA服务专家，任何人都知道如何增加返回Silverlight客户端的RIA Services查询数据的数据缓冲区大小上限？

我有一个RIA服务查询，它返回一个父实体以及作为数据响应的一部分返回的相当多的子实体集合。我的RIA服务查询的代码如下所示：

   1:  [EnableClientAccess()]
   2:  public class ContactsDomainService : LinqToEntitiesDomainService
   3:  {
   4:       [Query(ResultLimit = 150)]
   5:       public IQueryable SearchContacts(string jobFunction = default(string),
   6:                                                    string workPhone = default(string),
   7:                                                    string officeLocation = default(string),
   8:                                                    string firstName = default(string),
   9:                                                    string lastName = default(string),
  10:                                                    string address1 = default(string),
  11:                                                    string address2 = default(string),
  12:                                                    string city = default(string),
  13:                                                    int stateTypeId = 0,
  14:                                                    string zip = default(string),
  15:                                                    string email = default(string),
  16:                                                    Nullable departmentTypeId = null,
  17:                                                    Nullable sectionTypeId = null,
  18:                                                    Nullable divisionTypeId = null,
  19:                                                    Nullable governmentTypeId = null)
  20:       {
  21:            var results = from r in this.ObjectContext.Contacts
  22:                                       .Include("ContactAddresses")
  23:                                       .Include("ContactAddresses.CityType")
  24:                                       .Include("ContactAddresses.StateType")
  25:                                       .Include("ContactDepartments")
  26:                                       .Include("ContactDepartments.DepartmentType")
  27:                                       .Include("ContactDivisions")
  28:                                       .Include("ContactDivisions.DivisionType")
  29:                                       .Include("ContactEmails")
  30:                                       .Include("ContactGovernments")
  31:                                       .Include("ContactGovernments.GovernmentType")
  32:                                       .Include("ContactJobFunctions")
  33:                                       .Include("ContactJobFunctions.JobFunctionType")
  34:                                       .Include("ContactOffices")
  35:                                       .Include("ContactPhones")
  36:                                       .Include("ContactPhones.PhoneType")
  37:                                       .Include("ContactSections")
  38:                                       .Include("ContactSections.SectionType")
  39:                          select r;

我已通过测试确认[Query（ResultLimit = 150）]装饰器将导致整个RIA服务查询，SearchContacts（）失败并抛出异常，如果你增加150到500.我猜我是达到RIA服务的整体数据限制。

我搜索了一下这个问题，看起来你可以通过编辑Web配置设置来增加WCF Web服务的数据缓冲区大小（注意WCF服务，而不是RIA服务），但不确定是否也会这样做在RIA服务查询中工作。

如果有人遇到同样的问题并找到解决方案，请回复。

提前谢谢，约翰

如何增加RIA Services查询的数据缓冲区大小上限？

2 个答案: