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How can l fix these Data Annotation Errors [closed]

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namespace Network_Management_System
{
class validation
{
// Validation for login_input
static void LoginValidation()
{
[Required]
private string Username { get; set; }
[Required]
[EmailAddress]
public string Email { get; set; }
[Required]
[RegularExpression("W+")]
public string Password { get; set; }
}
}
}

static void LoginValidation()
is a function. Those attributes can be applied to properties of a class. For example:
class Validation
{
[Required]
private string Username { get; set; }
[Required]
[EmailAddress]
public string Email { get; set; }
[Required]
[RegularExpression("W+")]
public string Password { get; set; }
public Validation()
{
}
}

Nested Json Parsing to c#(Console Application) [closed]

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I need to parse Json into C# (Console Application) and also need to view the parsed data in a datatable.
I have tried to generate the classes as far as I know.
Code:
{
"RLC": [
{
"PAR": ""
},
{
"PAR": ""
},
{
"PAR": ""
}
],
"PR":
Please help out.

you can use the below c# class to serialize the json
// Root myDeserializedClass = JsonConvert.DeserializeObject<Root>(myJsonResponse);
public class RecordLocator
{
public string PNR { get; set; }
}
public class PNRAmount
{
public string BalanceDue { get; set; }
public string AuthorizedBalanceDue { get; set; }
public string SegmentCount { get; set; }
public string PassiveSegmentCount { get; set; }
public string TotalCost { get; set; }
public string PointsBalanceDue { get; set; }
public string TotalPointCost { get; set; }
public List<object> AlternateCurrencyCode { get; set; }
public string AlternateCurrencyBalanceDue { get; set; }
}
public class Root
{
public List<RecordLocator> RecordLocator { get; set; }
public PNRAmount PNRAmount { get; set; }
}

Unable to get third level records filtered using Entity Framework [closed]

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Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
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I have the below code structure and would like to get all the record from Unit collection where AmountIsTaxInclusive is true
public class Unit
{
[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int UnitID { get; set; }
public string Name { get; set; }
public int UnitStatusID { get; set; }
public virtual Reservation Reservation { get; set; }
}
public class Reservation
{
[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int ReservationID { get; set; }
public int ReservationStatusID { get; set; }
public virtual ICollection<ReservationUnits> ReservationUnits
}
public class ReservationUnit
{
[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int ReservationUnitID { get; set; }
[Required]
public int ReservationID { get; set; }
public Reservation Reservation { get; set; }
[Required]
public int UnitID { get; set; }
public Unit Unit { get; set; }
public decimal Amount { get; set; }
public bool AmountIsTaxInclusive { get; set; }
public bool IsFixedRate { get; set; }
}
When I tried to filter Reservationunit collection I am getting all records.
Query
var result = _unitOfWork.UnitRepository.GetBySessionIdAndUnit(sessionId, newUnitIds).IncludeFilter(p => p.Reservation).IncludeFilter(y => y.Reservation.ReservationUnit.Where(c => c.AmountIsTaxInclusive == true)).ToList();

The answer is simple. You just need to make an instance of your Context class(let us name it dbContext).
Then call the following line where you want.
var myDesiredList = dbContext.ReservationUnit.where( ru => ru.AmountIsTaxInclusive == true).ToList();
Let me know if you had more information to share.

Deserialize JSON Data by JSON.Net [closed]

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I'm now trying to process some JSON data by using JSON.NET
but i have no idea how to solve it.
The JSON String is very long, so i make it a file click me
My goal is to deserialize to an array what type is bikeData
public class bikeData
{
public string sno { get; set; }
public string sna { get; set; }
public string sarea { get; set; }
public string ar { get; set; }
public string tot { get; set; }
public string sbi { get; set; }
public string bemp { get; set; }
public float lat { get; set; }
public float lng { get; set; }
public string mday { get; set; }
public string sv { get; set; }
public bikeData()
{
}
}
Hope anyone can help me.

Try:
JsonConvert.DeserializeObject<IDictionary<string, bikeData>>()

This should do the job for you:
vara bikeDataObjects = JsonConvert.DeserializeObject<List<bikeData>>(jsonString);

How to parse that json response? [closed]

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Closed 9 years ago.
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I am tired about parsing that json response :
I prepared class something for model:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
class Announcements
{
public class Private
{
public string created_at { get; set; }
public int id { get; set; }
public string text { get; set; }
public string title { get; set; }
public string updated_at { get; set; }
public int user_id { get; set; }
}
public class User
{
public string first_name { get; set; }
public int id { get; set; }
public string last_name { get; set; }
}
public class Public
{
public string created_at { get; set; }
public int id { get; set; }
public string text { get; set; }
public string title { get; set; }
public User user { get; set; }
}
public class RootObject
{
public List<Private> #private { get; set; }
public List<Public> #public { get; set; }
}
}
Now time to deserialize response :
var tempUsersArray = JsonConvert.DeserializeObject<Announcements.RootObject>(response.Content);
and this makes a app crash...
Anyone have idea what i do wrong?

You don't define permission for class, please chnge class Announcements to public class Announcements. Now it should work properly, test this tip please.