Question

C# situation….i’ve set a value to a variable from another class using form1 using this…

CLASS

 public int _a;
        public int a
                {
                    get
                    {
                        return _a;
                    }
                    set
                    {
                        _a = value;
                    }
}

Form 1

  private void btnchangevalue_Click(object sender, EventArgs e)
        {
class x = new class();
x.a = 1;
}

Form 2

private void btngetvalue_Click(object sender, EventArgs e)
            {
    class x = new class();
   messagebox.show(x.a);
    }

the problem is the class variable that ive set always turns to null when i’ve tried to retrieve it..

Answer 1

You should use a static variable

static variable is a variable that has been allocated statically, whose lifetime extends across the entire run of the program.

public static int a

What is happening is that new variables
Are created each time
You create the form object