如何从 firebase xamarin 获得搜索结果......?
How can I get a Search result from firebase xamarin....?
我的Firebase节点是这样的...
Member
-Kr4RLvm2ObnbnRvWXeb-wEr
Age: "32"
Email: "samaaa@uil.gl"
IsActive: true
ManagerId: "170809sam@uil.gl"
MemberId: "170809sam@uil.gl"
Name: "Samiufgfgl alfgfgam"
-Kr4RLvmbnbn2ORvWXeb-wEr
Age: "34"
Email: "sasssm@uil.gl"
IsActive: true
ManagerId: "170809sam@uil.gl"
MemberId: "170809sam@uil.gl"
Name: "Samfgfgiul alam"
-Kr4RLvm2OghghRvWXeb-wEr
Age: "39"
Email: "sacccm@uil.gl"
IsActive: true
ManagerId: "170809sam@uil.gl"
MemberId: "170809sam@uil.gl"
Name: "Samfffiul alam"
-Kr4RLvm2ObvnbvnbvnRvWXeb-wEr
Age: "66"
Email: "sabbbm@uil.gl"
IsActive: false
ManagerId: "170809sam@uil.gl"
MemberId: "170809sam@uil.gl"
Name: "Samigggul alam"
我可以通过这种方式从 Xamarin 中检索数据
var firebase = new FirebaseClient(url);
var Current = await firebase.Child("Member").OnceAsync<Member>();
但是我想要火力基地的数据作为
select * 来自 IsActive = true 且年龄 > 30 的成员
你不能在 firebase 中查询超过 child,而且你使用的库不能这样做。如果您使用的平台是 Mono.Android this 库就可以。
和下面的解决方案代码
DatabaseReference myRef = database.GetReference("Member");
myRef.OrderByChild(mAge+"/IsActive").EqualTo(true).AddValueEventListener(this);
此外,您还需要根据自己的需要更改数据库结构,以便此解决方案像这个年龄需要像索引一样工作
-Kr4RLvm2ObnbnRvWXeb-wEr
Age: "32"
Email: "samaaa@uil.gl"
IsActive: true
ManagerId: "170809sam@uil.gl"
MemberId: "170809sam@uil.gl"
Name: "Samiufgfgl alfgfgam"
-Kr4RLvmbnbn2ORvWXeb-wEr
Age: "34"
Email: "sasssm@uil.gl"
IsActive: true
ManagerId: "170809sam@uil.gl"
MemberId: "170809sam@uil.gl"
Name: "Samfgfgiul alam"
enter code here
我的Firebase节点是这样的...
Member
-Kr4RLvm2ObnbnRvWXeb-wEr
Age: "32"
Email: "samaaa@uil.gl"
IsActive: true
ManagerId: "170809sam@uil.gl"
MemberId: "170809sam@uil.gl"
Name: "Samiufgfgl alfgfgam"
-Kr4RLvmbnbn2ORvWXeb-wEr
Age: "34"
Email: "sasssm@uil.gl"
IsActive: true
ManagerId: "170809sam@uil.gl"
MemberId: "170809sam@uil.gl"
Name: "Samfgfgiul alam"
-Kr4RLvm2OghghRvWXeb-wEr
Age: "39"
Email: "sacccm@uil.gl"
IsActive: true
ManagerId: "170809sam@uil.gl"
MemberId: "170809sam@uil.gl"
Name: "Samfffiul alam"
-Kr4RLvm2ObvnbvnbvnRvWXeb-wEr
Age: "66"
Email: "sabbbm@uil.gl"
IsActive: false
ManagerId: "170809sam@uil.gl"
MemberId: "170809sam@uil.gl"
Name: "Samigggul alam"
我可以通过这种方式从 Xamarin 中检索数据
var firebase = new FirebaseClient(url);
var Current = await firebase.Child("Member").OnceAsync<Member>();
但是我想要火力基地的数据作为 select * 来自 IsActive = true 且年龄 > 30 的成员
你不能在 firebase 中查询超过 child,而且你使用的库不能这样做。如果您使用的平台是 Mono.Android this 库就可以。
和下面的解决方案代码
DatabaseReference myRef = database.GetReference("Member");
myRef.OrderByChild(mAge+"/IsActive").EqualTo(true).AddValueEventListener(this);
此外,您还需要根据自己的需要更改数据库结构,以便此解决方案像这个年龄需要像索引一样工作
-Kr4RLvm2ObnbnRvWXeb-wEr
Age: "32"
Email: "samaaa@uil.gl"
IsActive: true
ManagerId: "170809sam@uil.gl"
MemberId: "170809sam@uil.gl"
Name: "Samiufgfgl alfgfgam"
-Kr4RLvmbnbn2ORvWXeb-wEr
Age: "34"
Email: "sasssm@uil.gl"
IsActive: true
ManagerId: "170809sam@uil.gl"
MemberId: "170809sam@uil.gl"
Name: "Samfgfgiul alam"
enter code here