Question

I’ve been looking for this question but hadn’t have no luck, I hope it isn’t repeated.
I have one abstract class.

public abstract class IFDB
{
     public struct Estructura_TablaCuentasBancarias
    {
        public string NombreTabla;
        public string NumeroDeCuenta;
        public string Entidad;
        public string DNIPropietario;

        public Estructura_TablaCuentasBancarias(string NombreTabla, string NumeroDeCuenta, string Entidad, string DNIPropietario)
        {
            this.NombreTabla = NombreTabla;
            this.NumeroDeCuenta = NumeroDeCuenta;
            this.Entidad = Entidad;
            this.DNIPropietario = DNIPropietario;
        }
    }

}

And the derived class:

class CntrDBSQLSRVCompac: IFDB
{
     public readonly Estructura_TablaCuentasBancarias TablaCuentasBancarias =
        new Estructura_TablaCuentasBancarias("CuentasBancarias", "Numero De Cuenta", "Entidad", "DNI Propietario");

In the program I have done the instance:

protected IFDB ClsCntrlDB;
...

ClsCntrlDB = new CntrDBSQLSRVCompac();

But when trying to use the estructure “TablaCuentasBancarias” it’s not on the list of possible functions/vars.
If the instance and initialization of the structure is done in the IFDB class it works perfectly but, I want to make the IFDB class an interface.

What I’m doing wrong?

Thank you.

Answer 1

Following code works fine for me, so maybe you have some other issue.

abstract class FooBase
{
    public struct Bar
    {

    }
}

class Foo : FooBase
{
    public readonly Bar BarInstance = new Bar();
}

class TestClass
{
    public static void Test()
    {
        var foo = new Foo();
        var bar = foo.BarInstance; //works fine
    }
}