我有一个具有OData支持的WebAPI 2.2服务。
我的 Controller 有一个返回IQuerable<Entity>
的操作,但是即使允许所有功能,我也无法使用$filter=substringof
函数。
[Authorize]
public class MyController : ODataController
{
[EnableQuery(AllowedFunctions=AllowedFunctions.All)]
public IQueryable<Entity> GetEntities()
{
return GetMyQueryable();
}
}
当我点击
http://localhost:49844/Entities/?$filter=substringof('Queen',Name)
这样的网址时我收到一条错误消息,说不允许substringof。
{
"error": {
"code": "",
"message": "The query specified in the URI is not valid. An unknown function with name 'substringof' was found. This may also be a function import or a key lookup on a navigation property, which is not allowed.",
"innererror": {
"message": "An unknown function with name 'substringof' was found. This may also be a function import or a key lookup on a navigation property, which is not allowed.",
"type": "Microsoft.OData.Core.ODataException",
知道为什么我会看到此错误吗?
最佳答案
substringof()
是 V3 函数,而contains()
是 V4 函数。
尝试包含:
$filter=contains(Name,'Queen')
关于asp.net-web-api - WebAPI 2.2不支持substringof函数,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/24994774/