How to get data from an Object from another Class?

Question

Hey I have a problem with my code. Sorry if the question is too easy but I can't find a solution.

I have an object called user in class 1

The Object User has this variables.

 public class User
{
    public string email { get; set; }
    public string password { get; set; }
    public string mobilenumber { get; set; }
    public string service { get; set; }
    public override string ToString()
    {
        return $"{email}: {password}: {mobilenumber}: {service}";
    }
}

These variables are filled with data in class 1

Now I want to access these data in class 2 and display them to me.

I tried something like

Class Firstclass{
    public void OnLogin(){
        public User user = new User();
        user.email = [email protected]
   }
}

Class B{
   protected override async Task OnInitializedAsync(){
    Firstclass firstclass = new Firstclass();
    string output = firstclass.user.email;
  }
}

The code you show in the second snippet won't fly outside of a method. You could put it inside Firstclass's Constructor for example. — Fildor
– Fildor, Commented Nov 14, 2022 at 11:30
it's quite odd to have the instance of User hardcoded like that in Firstclass.. anyway to make your desiderata something meaningful for the c# syntax, this would be an attempt: dotnetfiddle.net/CwGu90 — Diego D
– Diego D, Commented Nov 14, 2022 at 11:39

Ali · Accepted Answer · 2022-11-14 11:54:47Z

1

There are several ways to do that. A simple one would be to instantiate the User inside the constructor:

public Class Firstclass
{
    User user;        
    public FirstClass()
    {
       this.user = new User();
       this.user.email = "[email protected]";
       // more data could be here or use a local method to fill user's fields
    }
    public User 
    {
      get
      {
         return this.user;
      }
      set
      {
         this.user = value;
      }
    }
 }

Try to avoid using a public field, rather use a public property like User in above. Then in Class B, you would have:

Class B
{
    protected override async Task OnInitializedAsync()
    {
        Firstclass firstclass = new Firstclass();
        string output = firstclass.User.email;
    }
}

answered Nov 14, 2022 at 11:54

Ali

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