.net – 使用OData $select来从相关对象中挑选字段

我正在使用带有OData V4的WebAPI 2.2.

我可以使用$filter = Relatedobj / PropertyName eq’Some Value’来根据相关的对象属性值过滤实体列表.

但是,当我尝试使用与$select相同的语法时：

$select=Id,Name,Relatedobj/PropertyName

结果例外：

"message": "The query specified in the URI is not valid. Found a path with multiple navigation properties or a bad complex property path in a select clause. Please reword your query such that each level of select or expand only contains either TypeSegments or Properties.","innererror": {
"message": "Found a path with multiple navigation properties or a bad complex property path in a select clause. Please reword your query such that each level of select or expand only contains either TypeSegments or Properties.","type": "Microsoft.OData.Core.ODataException",

这可以解决吗？

解决方法

您可以使用$expand和嵌套$select查询选项来完成

$select=Id,Name&$expand=Relatedobj($select=PropertyName)

见ODATA documentation