c# – 如何使用OData对Dictionary进行过滤？

C#模型.

var asset = new Asset()
{
    Id = Guid.NewGuid().ToString(),Name = "Cool Asset Yo",Url = "http://test/test.asset",Tags = new[] {"test"},Properties = new Dictionary<string,string>
    {
        {"platform","android"},{"dim_depth","1.0"},{"dim_height",{"dim_width",{"item_type","Trim"}
    }
}

返回JSON

[
      {
        "name": "Cool Asset Yo","properties": {
          "platform": "android","dim_depth": "1.0","dim_height": "1.0","dim_width": "1.0","item_type": "Trim"
        },"tags": [
          "test"
        ],"url": "http://test/test.asset","id": "77d9b9df-4f4b-4fad-a1d3-af5075d52a62",}
 ]

示例查询有效！

> api / Asset？$filter = startswith(name,’Cool’)
> api / Asset？$filter = tags / any(tag eq’test’)
> api / Asset？$filter = id eq’77d9b9df-4f4b-4fad-a1d3-af5075d52a62′

现在失败:-(

> api / Asset？$filter = properties / platform eq’Android’

>错误：属性“platform”的属性访问的父值不是单个值.属性访问只能应用于单个值.

> api / Asset？$filter = properties / any(道具：道具/平台eq’Android’)

>错误：无法在类型’System.Collections.Generic.KeyValuePair_2OfString_String’上找到名为’platform’的属性.

> api / Asset？$filter = properties / any(keyValue：keyValue(‘platform’)eq’Android’)

>错误：找到名为’keyValue’的未知函数.这也可能是导航属性上的函数导入或键查找,这是不允许的.

> api / Asset？$filter = properties / any(keyValue：keyValue eq’Android’)

>错误：检测到具有不兼容类型的二元运算符.找到操作数类型’System.Collections.Generic.KeyValuePair_2OfString_String’和’Edm.String’,用于运算符类’Equal’.

> api / Asset？$filter = properties [‘platform’] eq’Android’

>错误：’properties [‘platform’] eq’Android”中第31位的语法错误.

如何获得“Android”平台的资产列表？我看到在模型中使用的Microsoft Documents通用字典中的示例,我没有看到任何$filter示例.