Question

我有一个模型，我有一个项目（根），然后是一个复杂的类型（制造），嵌入另一个复杂类型（位置，名为Factory下面）。

扩展制造业时，所有工作都按预期进行：

https://localhost/Inextrace/Items('ABC123456789')?$select=Code&$expand=Manufacturing($select=Factory)

但是，当我尝试只选择复杂类型位置（Factory）的一个属性时，它表示不支持它。有任何解决方法来实现这个目标吗？

https://localhost/Inextrace/Items('ABC123456789')?$select=Code&$expand=Manufacturing($select=Factory/Code)

响应：

{
  "error":{
    "code":"","message":"The query specified in the URI is not valid. A path within the select or expand query option is not supported.","innererror":{
      "message":"A path within the select or expand query option is not supported.","type":"Microsoft.OData.Core.ODataException","stacktrace":"   at System.Web.OData.Formatter.Serialization.SelectExpandNode.ValidatePathIsSupported(ODataPath path)\r\n   at System.Web.OData.Query.Expressions.SelectExpandBinder.GetPropertiesToIncludeInQuery(SelectExpandClause selectExpandClause, IEdmEntityType entityType, IEdmEntitySet entitySet, IEdmModel model, ISet`1& autoSelectedProperties)\r\n   at System.Web.OData.Query.Expressions.SelectExpandBinder.ProjectElement(Expression source, SelectExpandClause selectExpandClause, IEdmEntityType entityType, IEdmEntitySet entitySet)\r\n   at System.Web.OData.Query.Expressions.SelectExpandBinder.BuildPropertyContainer(IEdmEntityType elementType, Expression source, Dictionary`2 propertiesToExpand, ISet`1 propertiesToInclude, ISet`1 autoSelectedProperties, Boolean isSelectingOpenTypeSegments)\r\n   at System.Web.OData.Query.Expressions.SelectExpandBinder.ProjectElement(Expression source, SelectExpandClause selectExpandClause, IEdmEntityType entityType, IEdmEntitySet entitySet)\r\n   at System.Web.OData.Query.Expressions.SelectExpandBinder.GetProjectionLambda()\r\n   at System.Web.OData.Query.Expressions.SelectExpandBinder.Bind(IQueryable queryable)\r\n   at System.Web.OData.Query.SelectExpandQueryOption.ApplyTo(IQueryable queryable, ODataQuerySettings settings, IAssembliesResolver assembliesResolver)\r\n   at System.Web.OData.Query.ODataQueryOptions.ApplySelectExpand[T](T entity, ODataQuerySettings querySettings)\r\n   at System.Web.OData.Query.ODataQueryOptions.ApplyTo(IQueryable query, ODataQuerySettings querySettings)\r\n   at System.Web.OData.EnableQueryAttribute.ExecuteQuery(Object response, HttpRequestMessage request, HttpActionDescriptor actionDescriptor)\r\n   at System.Web.OData.EnableQueryAttribute.OnActionExecuted(HttpActionExecutedContext actionExecutedContext)"
    }
  }
}

任何想法只选择工厂的某个领域？

我是C＃.Net使用和以下版本的nuget包：

Microsoft.AspNet.OData v5.8.0
Microsoft.OData.Code v6.14.0
Microsoft.AspNet.WebApi v5.2.3

此致 NicolasStübi

odata v4无法在另一个复杂类型中选择复杂类型的属性（使用展开）

0 个答案: