How to assign value to Address , Country and City - asp.net-mvc-4

Here is classes
-Person
-User
-City
-Country
-Address
Person has complex properties of (Address),
Address has complex Properties of (Country , City)
Class User inherited from Person class
scenario:-
I want to create a signup view inwhich i want to assign values to Address , country , city. How can i do it.
Below is the detail of classes
public class Person
{
public Person()
{ }
private string name;
public string Name
{
get { return name; }
set { name = value; }
}
private Gender gender;
public virtual Gender Gender
{
get { return gender; }
set { gender = value; }
}
private ICollection<ContactNumber> contactNumber;
public virtual ICollection<ContactNumber> ContactNumber
{
get { return contactNumber; }
set { contactNumber = value; }
}
private Address address;
public virtual Address Address
{
get { return address; }
set { address = value; }
}
private DateTime dateOfBirth;
public DateTime DateOfBirth
{
get { return dateOfBirth; }
set { dateOfBirth = value; }
}
private string picture;
public string Picture
{
get { return picture; }
set { picture = value; }
}
}
public class User : Person
{
public User() : base()
{ }
private ICollection<Role> roles;
public virtual ICollection<Role> Roles
{
get { return roles; }
set { roles = value; }
}
private int id;
public int Id
{
get { return id; }
set { id = value; }
}
private string email;
[Required()]
[RegularExpression(#"\w+([-+.']\w+)*#\w+([-.]\w+)*\.\w+([-.]\w+)*")]
[Display(Name = "Email Address")]
public string Email
{
get { return email; }
set { email = value; }
}
private string loginId;
[Required()]
[Display(Name = "Login")]
public string LoginId
{
get { return loginId; }
set { loginId = value; }
}
private string password;
[Required()]
[Display(Name = "Password")]
[DataType(DataType.Password)]
public string Password
{
get { return password; }
set { password = value; }
}
private string repassword;
[Required()]
[Display(Name = "Confirm Password")]
[Compare("Password")]
public string Repassword
{
get { return repassword; }
set { repassword = value; }
}
private string secretQuestion;
[Required()]
[Display(Name = "Secret Question")]
public string SecretQuestion
{
get { return secretQuestion; }
set { secretQuestion = value; }
}
private string secretAnswer;
[Required()]
[Display(Name = "Answer")]
public string SecretAnswer
{
get { return secretAnswer; }
set { secretAnswer = value; }
}
private string photoUrl;
[Display(Name = "Image")]
public string PhotoUrl
{
get { return photoUrl; }
set { photoUrl = value; }
}
}
public class Country
{
public Country()
{ }
private int id;
public int Id
{
get { return id; }
set { id = value; }
}
private string name;
public string Name
{
get { return name; }
set { name = value; }
}
//private string flagUrl;
}
public class City
{
public City()
{ }
private int id;
public int Id
{
get { return id; }
set { id = value; }
}
private string name;
public string Name
{
get { return name; }
set { name = value; }
}
private Country country;
public virtual Country Country
{
get { return country; }
set { country = value; }
}
}
Thanx in Advance.

If you right click on your action method for your signup page in your controller and select Add View In the dialog that appears you can choose to make the view strongly typed. Select your User class and visual studio will scaffold a lot of the code needed.
If you need more help in working with MVC here is a good place to start.

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Xamarin.Forms: Cannot connect to database

I have this database structure:
public class QRDatabase
{
readonly SQLiteAsyncConnection _database;
public QRDatabase(string dbPath)
{
_database = new SQLiteAsyncConnection(dbPath);
_database.CreateTableAsync<db_QRCODE_Type>().Wait();
}
public Task<List<db_QRCODE_Type>> GetQRCode()
{
return _database.Table<db_QRCODE_Type>().ToListAsync();
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public Task<int> SaveQRCode(db_QRCODE_Type note)
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if (note.ID != 0)
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return _database.UpdateAsync(note);
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return _database.InsertAsync(note);
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}
public Task<int> DelteQRCode(db_QRCODE_Type note)
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return _database.DeleteAsync(note);
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}
This uses this type:
public class db_QRCODE_Type
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[PrimaryKey, AutoIncrement]
public int ID { get; set; } // Identificator of column
public string firstName { get; set; } // firstname
public string lastName { get; set; } // firstname
public byte[] qrBytes { get; set; } //qr code in bytes
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Then, in the class where I need the DB I am doing this from the tutorial here:
https://learn.microsoft.com/de-de/xamarin/get-started/quickstarts/database?pivots=windows
static QRDatabase database;
static string nameOfDB = "01db_qrs_q2go.db3";
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get
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if (database == null)
{
database = new QRDatabase(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), nameOfDB));
}
return database;
}
}
However, I am not quite sure how this works since I am never calling "Database" even though this is where the database is supposed to be initiliased.
Now, when I try to write to the database:
db_QRCODE_Type entry = new db_QRCODE_Type();
entry.firstName = entry_firstname.Text;
entry.lastName = entry_lastname.Text;
entry.qrBytes = qrCodeBytes;
try
{
await database.SaveQRCode(entry);
}
catch
{
DependencyService.Get<IMessage>().LongAlert("Etwas hat nicht funktioniert, bitte versuche es noch einmal. Fehlercode: DB_665h");
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It fails saying it is not set reference to an instance and goes into the catch block. I am doing everything as in the tutorial. Why is this happening?
Thank you!

Windows Phone 8.1 RT view not updating (MVVM)

I'm designing a profile page for users where they can edit their personal info. I'm using a PersonViewModel (which contains the current signed in person) to display the current info about the User. The fields to edit the user's info are bound to a validation model. After pressing the 'execute changes' button and I get a response of the server (HTTPStatusCode Ok + the altered user object), I alter the fields of the existing object according to the changes. Then I used setter injection to update my PersonViewModel... When debugging, I can see that my objects are all up-to-date but my view is still displaying the old info... What am I doing wrong?`
This is the code that get's executed when I press the button to execute my changes:
private async void ChangeInfoButton(object sender, RoutedEventArgs e)
{
User user;
List<ErrorInfo> errors;
if (_profileInformationValidationModel.TryGetUser(out user, out errors))
{
var response = await Session.Instance.DataProvider.UpdaterUserInfo(user);
if (response.IsSuccess)
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/*SignedInUserInfo = AlteredUserInfo*/
Session.Instance.User.Information = user.Information;
_personViewModel.SetPerson(user.Information);
var d1 = new MessageDialog("Uw gegevens werden succesvol gewijzigd.");
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AnnulInfoButton(sender, e);
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`
And this is the PersonViewModel:
public class PersonViewModel
{
private Person _person;
public void SetPerson(Person p)
{
_person = p;
}
public PersonViewModel(Person person)
{
_person = person;
}
public string Street
{
get { return _person.Street; }
}
public string HouseNumber
{
get { return _person.HouseNumber; }
}
public string Bus
{
get { return _person.Bus; }
}
public string Email
{
get { return _person.Email; }
}
Your view model should implement the INotifyPropertyChanged interface.
Look into using a framework like MVVM Light which does most of this work for you.
You can add it to your project using NuGet.
This is how your model and view-model should look:
public class Person
{
public string Street { get; set; }
public string HouseNumber { get; set; }
public string Bus { get; set; }
public string Email { get; set; }
}
public class PersonViewModel : System.ComponentModel.INotifyPropertyChanged
{
private Person _person;
public void SetPerson(Person person)
{
_person = person;
Street = person.Street;
HouseNumber = person.HouseNumber;
Bus = person.Bus;
Email = person.Email;
}
public PersonViewModel(Person person)
{
SetPerson(person);
}
#region Street (INotifyPropertyChanged Property)
private string _street;
public string Street
{
get { return _street; }
set
{
if (_street != value)
{
_street = value;
RaisePropertyChanged("Street");
}
}
}
#endregion
#region HouseNumber (INotifyPropertyChanged Property)
private string _houseNumber;
public string HouseNumber
{
get { return _houseNumber; }
set
{
if (_houseNumber != value)
{
_houseNumber = value;
RaisePropertyChanged("HouseNumber");
}
}
}
#endregion
#region Bus (INotifyPropertyChanged Property)
private string _bus;
public string Bus
{
get { return _bus; }
set
{
if (_bus != value)
{
_bus = value;
RaisePropertyChanged("Bus");
}
}
}
#endregion
#region Email (INotifyPropertyChanged Property)
private string _email;
public string Email
{
get { return _email; }
set
{
if (_email != value)
{
_email = value;
RaisePropertyChanged("Email");
}
}
}
#endregion
public event System.ComponentModel.PropertyChangedEventHandler PropertyChanged;
private void RaisePropertyChanged(string p)
{
var propertyChanged = PropertyChanged;
if (propertyChanged != null)
{
propertyChanged(this, new System.ComponentModel.PropertyChangedEventArgs(p));
}
}
}

Returning Custom Class from WCF Method?

There are so many question about that but there is no solution for my problem. I want to return a custom class which has datacontract key and it's members have datamember key. I am getting this error while I testing it;
When I call it from my windows phone application, it returns "The remote server not found"
It returns not found but it runs methods that return types are void, bool, list.
[OperationContract]
BaseModel Login(string userName, string password);
[DataContract]
public class UserModel
{
private int userID;
[DataMember]
public int UserID
{
get { return userID; }
set { userID = value; }
}
private string userName;
[DataMember]
public string UserName
{
get { return userName; }
set { userName = value; }
}
private string password;
[DataMember]
public string Password
{
get { return password; }
set { password = value; }
}
private string email;
[DataMember]
public string Email
{
get { return email; }
set { email = value; }
}
private int securityQuestionID;
[DataMember]
public int SecurityQuestionID
{
get { return securityQuestionID; }
set { securityQuestionID = value; }
}
private string securityQuestionAnswer;
[DataMember]
public string SecurityQuestionAnswer
{
get { return securityQuestionAnswer; }
set { securityQuestionAnswer = value; }
}
private string sex;
[DataMember]
public string Sex
{
get { return sex; }
set { sex = value; }
}
private string gsmNo;
[DataMember]
public string GSMNo
{
get { return gsmNo; }
set { gsmNo = value; }
}
private DateTime birthDate;
[DataMember]
public DateTime BirthDate
{
get { return birthDate; }
set { birthDate = value; }
}
private string registeredDeviceUniqueID;
[DataMember]
public string RegisteredDeviceUniqueID
{
get { return registeredDeviceUniqueID; }
set { registeredDeviceUniqueID = value; }
}
private string registrationType;
[DataMember]
public string RegistrationType
{
get { return registrationType; }
set { registrationType = value; }
}
private string registeredDeviceType;
[DataMember]
public string RegisteredDeviceType
{
get { return registeredDeviceType; }
set { registeredDeviceType = value; }
}
private string registeredApplication;
[DataMember]
public string RegisteredApplication
{
get { return registeredApplication; }
set { registeredApplication = value; }
}
private DateTime registeredDate;
[DataMember]
public DateTime RegisteredDate
{
get { return registeredDate; }
set { registeredDate = value; }
}
private string registeredGSM;
[DataMember]
public string RegisteredGSM
{
get { return registeredGSM; }
set { registeredGSM = value; }
}
private string profilePictureURL;
[DataMember]
public string ProfilePictureURL
{
get { return profilePictureURL; }
set { profilePictureURL = value; }
}
}
[DataContract]
public class BaseModel
{
private string errorMessage;
[DataMember]
public string ErrorMessage
{
get { return errorMessage; }
set { errorMessage = value; }
}
private string informationMessage;
[DataMember]
public string InformationMessage
{
get { return informationMessage; }
set { informationMessage = value; }
}
private string warningMessage;
[DataMember]
public string WarningMessage
{
get { return warningMessage; }
set { warningMessage = value; }
}
private string succeedMessage;
[DataMember]
public string SucceedMessage
{
get { return succeedMessage; }
set { succeedMessage = value; }
}
private object returnObject;
[DataMember]
public object ReturnObject
{
get { return returnObject; }
set { returnObject = value; }
}
private bool isSucceed;
[DataMember]
public bool IsSucceed
{
get { return isSucceed; }
set { isSucceed = value; }
}
}
And the method is;
public BaseModel Login(string userName, string password)
{
using (SqlConnection connection = new SqlConnection(ConfigurationManager.ConnectionStrings["conStr"].ConnectionString))
{
connection.Open();
using (SqlCommand command = new SqlCommand("SELECT * FROM UserBaseInformations WITH (NOLOCK) Where UserName=#userName", connection))
{
command.Parameters.Add(new SqlParameter("#userName", userName));
SqlDataAdapter adapter = new SqlDataAdapter();
adapter.SelectCommand = command;
DataTable dt = new DataTable();
adapter.Fill(dt);
DataSet ds = new DataSet();
ds.Tables.Add(dt);
connection.Close();
if (dt.Rows.Count == 0)
return new BaseModel() { IsSucceed = false, ErrorMessage = "Geçersiz bir kullanıcı adı girdiniz." };
else if (!dt.Rows[0]["Password"].ToString().Equals(password))
return new BaseModel() { IsSucceed = false, ErrorMessage = "Şifrenizi yanlış girdiniz." };
else
return new BaseModel()
{
IsSucceed = true,
ReturnObject = new UserModel()
{
Email = dt.Rows[0]["Email"].ToString(),
Password = dt.Rows[0]["Password"].ToString(),
UserID = (int)dt.Rows[0]["UserID"],
UserName = dt.Rows[0]["UserName"].ToString(),
SecurityQuestionID = (int)dt.Rows[0]["SecurityQuestionID"],
SecurityQuestionAnswer = dt.Rows[0]["SecurityQuestionAnswer"].ToString()
}
};
}
}
}
I have found solution.
Returning an object type can be problem in WCF so I changed it to a base class for returning my classes and added KnownType attribute to BaseModel.

Determine what fields to save in Windows Azure Table Storage

I'm trying to store an entity called Tshirt into a Windows Azure table storage along with a Blob on Windows Azure Blob storage.
That entity Tshirt contains a field called Image (byte[]) but I don't want to save that in my table.
How can I indicate in my class that I don't want to save that field?
public class Tshirt : TableServiceEntity
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private int _amount { get; set; }
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The easy way is to expose the field as a pair of methods rather than an actual property:
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If that's not an option, then you can remove the Image property when you're storing the entity by handling the WritingEntity event. (Credit to Neil Mackenzie)
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{
var context = new TableServiceContext(_baseAddress, _credentials);
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XNamespace d = "http://schemas.microsoft.com/ado/2007/08/dataservices";
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