Dot-Net
使用 OData $select 從相關對像中挑選欄位
我將 WebAPI 2.2 與 OData V4 一起使用。
我可以使用
$filter=RelatedObj/PropertyName eq 'Some Value'基於相關對象屬性值過濾實體列表。但是,當我嘗試使用相同的語法時
$select:$select=Id,Name,RelatedObj/PropertyName導致異常:
"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",這可以解決嗎?
您可以使用
$expand和嵌套$select查詢選項來做到這一點$select=Id,Name&$expand=RelatedObj($select=PropertyName)請參閱ODATA 文件
如果要對
$select導航屬性下的項目執行 a,則需要首先$expand導航屬性。EntitySet?$select=Id,Name,RelatedObj/PropertyName&$expand=RelatedObj